Global Environmental Fund( GEF) /The World Bank

The Commercialized Development of Chinese

Regenerated Energy Project

Phase? Project of Changjiang’ao Wind Power

Field in Pingtan of Fujian

Environmental Impact Assessment

East China Investigation and Design Institution

June, 2004 Hangzhou

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AdministratorE1048 vol. 1

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Project Name: Phase?Project of Changjiang’ao Wind Power Field in

Pingtan of Fujian

Document:: Environmental Impact Assessment Report

Participated by:

Yang Jin Master of Science

Yu lan Engineer

Li jiapei Senior engineer

Checked by:

Yu lan Engineer

Reviewed by:

Wang yinlong Senior engineer

Approved by:

Rui Bingliang Senior engineer, chief engineer

EIA Organization: East China Investigation and Design Institute

EIA Certificate: Guohuanping Class A No. 2001

Entrusted by: The Arrangement Office of Phase? of Changjiang’ao Wind

Power Field

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Executive Summary

1. Preface

Entrusted by ‘the Arrangement Office of Phase? of Changjiang’ao Wind

Power Field ’, ECIDI completed “Environmental Impact Assessment of Phase II

Project of Changjiang’ao Wind Power Field” (EIA) report on June 2004.

This paper based on EIA is just a summary of main project impact,

environmental management plan, and environmental monitoring plan for

Phase? Project of Changjiang’ao Wind Power Field.

2. Project Descriptions

Changjiang’ao Wind Power Field lies in inland of bay at the northeast of

Pingtan County, 10km away from the downtown of Pingtan. Fig.1 shows its

Ilocation.

Phase?Project of Changjiang’ao Wind Power Field completed construction,

and went into operation in Oct. 2000. The total capacity is 6000kW with 10

units of wind turbine manufactured at BAZAN Company of Spain, all of which

were BAZAN-BONUS 600kW MK-IV fix-distance blades. It’s planned that total

installed capacity will be 100.5MW with 67 units of 1.5MW wind turbines of

Phase? Project of Changjiang’ao. By theoretical calculation, the yearly output

of wind power will be 273.286GWh, power utilization of 2719h and power to

the net of 259.622GWh, utilization by selling power of 2583h, and capacity

coefficient of 0.295.

Wind turbine units were arranged perpendicular to northeast, the prevail

wind direction, whereas the 67 turbine units arranged as plum-like shape

which distances of row/column are 8D(560m)× 5D(350m) around the 10

turbines of Phase I Project. The general layout of the project is shown at Fig.2.

The substation locates at the northwest of the pre-central control building.

The substation connected to the power grid with 2 output loops of 110kV

voltage.

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The land occupation is total 908.4 mu (1 mu=666.7m 2), in which 478.61mu

of permanently, and 429.43 mu of temporarily. It’s planned that the

construction area of each wind turbine is 70m×70m (including land

occupation of the wind turbine) for pilling up equipment and material and

turbine installation.

It’s preliminary estimated that the construction period of Phase II Project is

24 months after the feasibility research and the loans examined and approved

by the World Bank.

The total cost of the project is RMB 859,940,000 yuan.

3. Surrounding Environmental Conditions

Changjianao Wind Power Field lies at the inner land area of the bay, the

northwestern part of Pingtan Island. It locates at the barranca, where Hutou,

Junshan, yangmei and Yanglei Mountains or hills are in its southeast, and a

series hills called Yandui, Longtou, Furongzhai in its northwest. The Project

site lies in the barranca area between two series of mountains and hills , and its

special geographical location determined its superior wind energy resource.

There is no big river at the site area, but a relatively small stream called

Shangpanhu with less flow.

Cultivated land and forestland are the main land types. The cultivated land

vegetation is crops, such as potato, wheat, peanut, etc., and the forest land,

wooden ephedra and a small amount of jequirity trees, black pines and

wetland pines, which all belong to the shelter forestry.

Construction area isn’t migratory bird's habitat and migratory route, and no

rare protected animals were found there.

The land occupation of the project mainly belongs to Luyang Village,

Pingyuan town, Zhonglou Village and state-owned Changjiang Forest Farm. At

present, there is a “Hupuqian Relic Site”, where is 400m away from the

southwest of 46# wind turbine, which is the Neolithic culture remains about

5000- 6000 years old, un-developed up to now, and expected to be further

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explored.

A mining area of 20,000 m2 lies in the northwest of 59# wind turbine, and

the quartz sand is the main products for sale.

A Piggery Farm of “Development Co.,Ltd. of Sunshine Ecological

Agriculture” is building at the north of 44# wind turbine. It is estimated 10,000

pigs supplied annually.

4. Main Environmental Impacts

( 1) Environmental Impact during construction period

Noise is mainly caused of construction machines, such as excavating

machines and the transportation trucks, etc. According to predicting, there is

only certain acoustic influence to 3 sensitive points which are Shanxianmei,

Guanlouxia and Hupuqian, the predict noise values of which are 62dB, 61dB

and 64dB during construction period. Since no sensitive spots in 200m range

along the entrance road, it’s lightly influences acoustic environmental quality of

communication noise from transportation vehicles

Production waster water and domestic sewage are main water pollution

source. Domestic sewage contains CODCr and BOD5. After being treated by

septic pit and sewage treatment facilities underground, domestic sewage is

shed in the forest land nearby directly, consuming in form of evaporating or

leakage. Production wastes water of construction mainly come from concrete

mixer and construction machines rinsing. Production wastewater contains oil

and SS, which is reused after processing.

Because of the dust source is low and the diameter of particle is relatively

large, so air impact on surrounding environment is mainly bounded to the

range of construction. There are no sensitive spots in 200m ranges along the

construction roads, no impact on atmosphere environmental quality of

automobile tail gas and dust

The area of permanent forestland occupation is 749.71mu,which accounts

for 4.6% of the total forestland area in the site area. Besides the permanent

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land occupation, the temporal land occupation will be recovered after the

project construction. So the wind power project will not influence the local

ecological environment.

It is estimated that the total excavation amount is 42,500m 3, the total

backfill amount is 49,500 m3.The dreg from access excavation can be used for

the backfill of wind turbine basis. Through the volume balance of excavate

and backfill, there are no abandoned discards in project. The soil erosion

during constructing period is about 1350t, so the water and soil conservation

plan is needed. And the owner should engage the unit with qualification to edit

water and soil conservation plan and complete this plan before the project

starts. After site excavation, concrete poured and site backfilled must be done

in time to decrease water and soil conservation. In case of construction ending

temporary occupation land must be restored or vegetation of trees and bushes

such as wood ephedrine and black pines to prevent erosion. It is not allowed to

cut other trees around the site except those had to be cut at the project

occupation land. Discards from road excavation must be transported to

installing site nearby in time, which are used to backfill the tower base, or piled

up at the site and covered with engineering cloth to those may not be used

promptly. Protection slopes of the excavation road sections should be built at

the end of excavation to avoid soil erosion of slopes.

The basis of tower is already designed to avoid residents’ houses, there is

no house needed to be pulled down.

( 2) Environmental Impact during operation period

Pingtan County is an island, where is lack of water resource, except the

6MW wind power generators installed; power supply mainly depends on the

provincial grid. In this place, it may meet not only needs of power of Pingtan

County, but also enhance the reliability of the power supply, as well as reduce

the pressure of the power supply of the provincial grid, thus local regional

economy and social continuous development will be stimulated up.

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The main noise source during operation period came from wind turbines .

According to the confirmed standards of the local Environment Protection

Bureau (see annex4), standard of Level 2 (60dB) of is in use. Prediction shows that the noise

value at every sensitive spot meet the Level 2 standard above at daytime and

only 3 spots of Shanxianmei, Guanlouxia ND sw Hupuqian exceed the

standard (50dB) slightly at night, the maximun exceeding is only 3.3dB. It may

be eliminated the unfavorable noise impact that Turbine 39#, 47#, 63# and 64#

etc are move to the direction of sensitive spots far away 50m-100m.

The sewage of the staffs can be treated by the existing sewage treatment

facilities, then discharge into natural ditches. The oil water from the substation

can be collected into the oil pool, and then transported to the professional unit

for treatment and it will not affect the surrounding environment.

Solid wastes are mainly consisting of the domestic rubbish of workers. It’s

estimated that each person generates 1.0kg wastes every day, the amount of

the domestic rubbish is about 5.0kg/d. Because the increase of the domestic

rubbish is relatively small, so we can handle with the rubbish of Phase I Project

altogether and the rubbish will not affect surrounding environment adversely.

5 Environmental Management Plan

Environmental Management Plan includes Environmental mitigation

action plan, Environmental supervision plan and Environmental monitoring

plan.

Environmental mitigation action plan define how to take measures, who

does, who is responsible authority; Environmental supervision plan guarantees

the completion of the action plan, and realize the environmental target of the

project; Environmental monitoring Plan describes monitoring items, frequency,

method, factor, unit, responsible department and monitoring cost.

The detailed content may be reviewed at the EIA report.

Environmental management and monitoring organizations are the

important insurance for plan completion. Fig. 1 and Fig. 2 are organization

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structuring.

Fig.1 Environmental management Organization Chart

The

World

Bank

The arrangement office of Changjiang ’ao ? wind power field

Supervision Company

Contractor

Construction Site Affeced area

Environmental

Protection Bureau

and relevant local

department

Monitoring

unit

Fujian Changjian’ao ?Wind Power

Field Co. Ltd.

Supervising Administration and exclusive

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Fig. 2 Organizational Institution for Environmental Monitoring

The Pingtan Environmental Monitoring Station works out the monitoring

reports four times every year of construction period, once each season and

then once one year during operation period. The report should be given to the

Phase? Project of the Wind Power Field Arrangement Office, and the report

is also submitted to the World Bank and Pingtan Environmental Protection

Bureau at the same time by Phase ? Project of the Wind Power Field

Arrangement Office.

6 Analyses of Alternatives

Fuzhou Environmental Protection Bureau

Pingtan Environmental Protection Bureau The World Bank

The arrangement office of Changjiang’ao ? wind power

Supervision company

Construction site Project affected areas

External monitoring

Contractual and managerial relationship

Information exchange and submitting report

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(1)“without project” analysis

If there is no this project, the yearly increase for power demand of Pingtan

County will continue relying on the provincial power grid . Considering power

from thermal plant, then the thermal plant will consume more 90,000t coal

every year, which increase 13,200t of CO2, 1700t of SO2, 890t of NOx every

year, and produce 21,000t of solid discards at the same time. More pollution to

local environment will be occurred.

(2)”alterative project” analysis

Compared with Changjiang’ao and Longwangtou areas, Longwangtou

area is not able to install 100,000kw wind power of its natural conditions , and

construction will generate more impact on surrounding landscape and

protection zone of drinking water. There is abundant wind-force source at

Changjiang’ao field and little influence to surrounding environment, so it is

recommended as the project location.

7 Public Participation Information Disclosing

In order to obtain the opinions from the influenced people and social

groups, flowing 4 methods are adopted:(1) Issue survey sheets to the public

for specific survey in May, 2004. 15 organizations and 26 personnel’s were

investigated; (2) A symposium meeting about environment and immigrants was

held at the Government of Pingtan on May 26, 2004,to consult the opinion of

impacted residents for project construction. More than 20 impacted residents

attent the meeting; (3) Let out project information through news media; (4)

Publicize the “Environment Impact Assessment Report ” for collecting public

comments and opinions at the office of the Government of Pingtan.

It is clear from the investigation, local people supported the project

actively. The public mainly paid close attention to noise, ecology, resettlement

etc .

The owner express that they will offer the rational economic compensation

for permanent land occupation, this compensation fund will be used afforest

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vegetation in other place; temporary occupation land will restore vegetation in

time after constructing. All compensation of resettlement will be based on state

standard with the local actual conditions, and ensuring resident's interests.

LIST OF CONTENTS

CHAPTER 1 PREFACE..........................................................................................1

1.1 Background.............................................................................................1

1.2 Basis for Environmental Impact Assessment....................................1

1.3 Scope of Environmental Impact Assessment....................................3

1.4 Methodology of Environmental Impact Assessment ........................4

1.5 Project Impacts ......................................................................................5

1.6 Recommended Mitigation Measures ..................................................6

CHAPTER 2 SURVEY OF THE PROJECT.........................................................7

2.1 Geographical Location ..........................................................................7

2.2 Scope of the Project..............................................................................7

2.3 Introduction of the Phase I Project of the Wind Power Field ..........7

2.4 Survey of the Phase II Project of the Wind Power Field .................8

2.5 Civil engineering ....................................................................................9

2.6 Ventilating ............................................................................................ 10

2.7 Construction planning .........................................................................11

2.8 Installation for the wind turbine......................................................... 12

2.9 General construction schedule......................................................... 14

2.10 Labors ................................................................................................ 14

2.11 General investment of the project.................................................. 14

2.12 Project characteristics...................................................................... 14

CHAPTER 3 PRESENT EIA AND ASSESSMENT............................................ 16

3.1 Brief introduction................................................................................. 16

3.2 Survey of natural environment.......................................................... 16

3.3 Survey of Social Environment .......................................................... 19

3.4 Present Environmental Quality......................................................... 23

CHAPTER 4 EIA AND MITIGATION MEASURES.......................................... 25

4.1 Acoustic Environment Impact ........................................................... 25

4.2 Ecologic Environment Impact........................................................... 32

4.3 Soil eros ion Impact............................................................................. 34

4.4 Social Environment Impact ............................................................... 38

4.5 Water Environment Impact................................................................ 41

4.6 Environment Air................................................................................... 43

4.7 Solid Wastes........................................................................................ 44

CHAPTER5 ALTERNATIVES COMPARISON................................................. 45

5.1 Instruction ............................................................................................ 45

5.2“Without Project” analysis ................................................................... 45

5.3 “Alternative project” analysis.......................................................... 45

5.4 Conclusion ........................................................................................... 48

CHAPTER6 PUBLIC PAR TICIPATION............................................................. 49

6.1 Brief Introduction................................................................................. 49

6.2 Method of Public Participation .......................................................... 49

6.3 Investigation of Public Participation................................................. 49

6.4 Information Disclosing..................................................................... 55

CHAPTER7 ENVIRONMENTAL MANAGEMENT PLAN .............................. 56

7.1 Composition of environment management plan (EMP)................ 56

7.2 Environmental management and environment monitoring

organizations..................................................................................................... 57

7.3 Environmental management plan .................................................... 61

7.4 Training plan for environmental protection ..................................... 71

7.5 Work schedule..................................................................................... 72

Table List

Table 1-1 The Scope of EIA ............................................................................3

Table 1-2 Environmental Protection Goal.....................................................3

Table 2-1 Characteristics of the Phase II Project........................................ 14

Table 3-1 Meteorological index of Pingtan ................................................... 16

Table 3-2 Index of village and town affected by the Project...................... 20

Table 3-3 Area of Ecologic public welfare forest of villages involved ....... 21

Table 3-4 Monitoring result of noise at the Project Site (daytime)............ 24

Table 4-1 Average noise level of main construction machines ................. 25

Table 4-2 Calculation result of divergence decline of construction at

daytime....................................................................................................... 26

Table 4-3 Noise impact forecasting during operation period .................. 29

Table 4-4 Noise impact forecasting around turbine location Adjusted..... 32

Table4-5 Land Occupation Requisition Table .............................................. 32

Table 4-6 The Statistical Table of Vegetation Requisition for Phase?

Project of Changjiang’ao......................................................................... 34

Table 4-7 Excavation/fill back Balance Table ............................................... 35

Table 4-8 Statistical Table of Cultivated Land Requisition for Phase?

Project of Changjiang’ao......................................................................... 39

Table 6-1 Investigated units ......................................................................... 50

Table 6-2 Composition of Inquired individuals and the ir Occupation .... 50

Table 6-3 Public Participation Survey Result( unit) .............................. 52

Table 6-4 Public Participation Survey Result( individual) ................... 53

Table6-5 Reports on Changjiang’ao ? by News Medium...................... 55

Table 7-1 Environmental Impact Mitigation Measures............................. 62

Table 7-2 The environmental supervision plan......................................... 66

Table7-3 Environmental Monitoring Plan ................................................... 68

Table 7-4 Training Plan................................................................................. 72

Table 7-5 Time Schedule for Environmental Management..................... 73

Figure List:

Fig.2-1 Present Status of the Phase I Project of Changjiang’ao Wind

Power Field ..................................................................................................8

Fig.3-1 Present vegetations at the site ......................................................... 18

Fig 3-2 Exploitation area at the quartz mine ................................................ 22

Fig. 3-3 Building Piggery Farm ....................................................................... 23

Total .................................................................................................................... 32

Fig7-1 Environmental management Organization Chart ........................... 57

Fig7-2 Organizational Institution for Environmental Monitoring............. 61

Attached figure:

Fig.1 Geographic Location of the Project

Fig.2 Location of Sensitive Spots

Annex:

1 Certification of the Forest-Resource Administration Station of Pingtan

County of Fujian Province

2 Certification of Culture Administration Bureau (Sports Bureau) of Pingtan

County

3 Tables of The public questionnaire (group,& individual) for EIA of the

Phase II Project of Pingtan Changjiang’ao Wind Power Field

4 The confirmed standards for EIA of the Phase II Project of Pingtan

Changjiang’ao Wind Power Field

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Chapter 1 Preface

1.1 Background

Pingtan County lies in the coastal area of the east of Fujian, 128km away

from Fuzhou City. The whole county is made up of numerous islands; the

largest island is Haitan Island, which is the first largest island in Fujian

Province. The place nearest to the land is 2~3 nautical miles..

Pingtan Island locates northwest of the strait in Pingtan County. There are

tow mountains, Hutou Mountain ~ Jun Mountain ~ yangmei Mountain ~ Yanglei

Mountain in the southeast of field location, Yandui Mountain ~ Longtou

Mountain ~ Furong Stockaded Village in the Northwest. The wind power field

lies in the barranca area between two mountains, its special geographical

position has determined its superior wind energy resource.

Pingtan county and neighboring Fuqing City are both the poor area of the

waterpower recourses , power come from the province grid mainly. The

Changjiang’ao ? wind power field will assigned 67 sets of wind turbines of

1.5MW grade altogether, the total installation capacity of 100.5MW and yearly

power yield of 260 million kW.h to electric wire netting.

In this place establishing wind-intensity power plant, not only can meet the

needs of using power of Pingtan county, and enhance the reliability of the

power supply, but also can offer superfluous power sources for Fuqing city to

reduce the pressure of the power supply of the provincial grid, thus local

regional economy and social continuous development will be stimulated up.

1.2 Basis for Environmental Impact Assessment

As required by the World Bank, an Environmental Impact Assessment (EIA)

report must be prepared for the Pingtan Changjiang’ao ? Wind Power Project.

The project has been assigned a Category ‘B’ rating under the World Bank’s

requirements.

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The EIA report analyzes and estimates the impact of project construction

on the ecological, Acoustic, social environments. It describes the existing

environmental and socio-economic conditions that could be affected adversely

or beneficially by the project, identifies potentially significant impacts, and

recommends measures for mitigating the serious negative impacts. The report

also suggests necessary measures for enhancing beneficial impacts.

The following state and provincial policies, regulations and standards

have been followed in preparing the EIA report.

(1)Law of the People ’s Republic of China( Dec.1989)

(2)Environmental Assessment law of the People ’s Republic of China( Sep.

2003)

(3)Law of the People’s Republic of China on the Conservation of water and

Soil( Jun. 1991)

(4) land Control Law in the People's Republic of China( Jan.1999)

(5)Forestry Law of the People ’s Republic of China( Apr.1998)

(6)Regulations of the People ’s Republic of China Concerning prevention of

Environmental Noise Pollution( Mar.1997)

(7) Law of the People’s Republic of China on Prevention of Environmental

Pollution by Solid Wastes (Apr. 1996)

(8) Law of the People’s Republic of China on the Prevention and Control of

Water Pollution (May 1996)

(9)Environmental protection management rule of the construction project( Nov.

1998)

(10) Land Administration Law of the People’s Republic of China (Dec.1998)

(11) Environmental protection Rule of Fujian

(12) Outline of National Ecological Environment Protection (the State Council,

Dec. 2000)

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(13) Classification of Environmental Protection Management for Construction

Projects [Jan. 19, 2003].

(14) Technical Guidelines (general as well as atmospheric , ground water and

acoustic environment) of Environmental Impact Assessment (HJ/T2.1~

2.3–93/2.4 – 1995)

(15) Notification of Strengthening Environmental Impact Assessment

Management for Construction Project Funded by International Monetary

Organization

(16) Feasibility Study Report of Changjiang’ao ? Wind Power Field

1.3 Scope of Environmental Impact Assessment

The scope of EIA covers the wind power field, the land taken up by project

construction, central control building and the surrounding area .The scope is

shown in table1-1.

Table 1-1 The Scope of EIA

EIA factor Scope

1 Water environment

Water areas (Shangpan brook) in the project area.

2 Acoustic environment

Sensitive points in the project area and in 200m ranges around, including the village and school, as shown in table 1-2.

3 Ecological environment

Forestland, cultivated land in the project area and 1km range around, including the animals and plants.

Table 1-2 Environmental Protection Goal

Village Name the nearest distance from

the air blower( m) Request

1 Shangpan 370

2 Shanxianmei 145

3 Fengmei 400 4 Wufeng 275

5 Yuyao 200

6 Guanlouxia 160 7 Lulou 535 8 Xibianlou 275

9 Yangjia 325 10 Kunhulou 290

? level of “the noise standard in the urban area”( GB3096- 93) ( 60dB in

daytime? 50dB at night) ;

?level of “the standard of atmosphere environmental quality”( GB 3095- 1996)?

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11 Luyang middle

school 635

12 The Pig farm 300 13 HUpuqian 120

1.4 Methodology of Environmental Impact Assessment

1.4.1 Data Collection and Field Investigation

Two environmental surveys of the project area and its surroundings were

initiated in Nov.2002 and in May.2004.

Survey staff has monitoring acoustic environmental quality within the

project-affected area, conduct survey of terrestrial animals and plants in the

project area, and consulted the relevant department of Pingtan county.

1.4.2 Methods of Analysis

Qualitative methods were used to analyze the extent of potential impacts

during construction and operation period.

Quantitative analytical methods were used to analyze the extent of

potential impacts of acoustic environment.

1.4.3 Public Participation

During preparation of the EIA report, the report stressed on the public

participation in project survey according to the current relevant Chinese laws

and regulations.

The affected people and social groups were interviewed and the

environment & resettlement symposium was held. The questionnaire were

printed and distributed for obtaining opinion.

At the same time, the information about project construction and

environmental protection was often publicized on local news medium to make

masses have deep knowing about the project.

EIA report of the project will be made available for public review in the

office of Pingtan County.

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1.5 Project Impacts

1.5.1 Benefits of project

Wind energy is the regenerated energy, Chinese Government encourages

to develop wind-force resources.

The project is to offer power of 260 million kw.h to Fujian Province grid

every year. Wind power project can be complementary with hydraulic power

generation project in Fujian Province and can offer superfluous power sources

for the provincial grid .

Construction of this project will guarantee Pingtan county and Fuqing

City’s developing demand for electric load, reduce the corresponding line

power loss, realize energy diversification of electricity, improve the quality and

dependability of electric wire netting, bring about an advance in regional

economy.

1.5.2 Negative impact

Construction of Changjiang’ao project is predicted to have following main

negative impacts:

(1) Construction Period

Construction of this project will cause impacts such as water pollution,

atmospheric pollution, noise, soil erosion, vegetation destroyed etc. If

untreated production wastewater and domestic sewage of workers discharged

directly into the river in the project area, the quality of river will deteriorate.

The noise of constructing has influence on constructors and nearby village,

the waste gas has influence on the constructors mainly.

Construction will take up some cultivated land and forestland. It cause a

certain influence to the local ecological environment. Excavating and backfill

will cause water and soil loss.

There is a “Hupuqian Relic site” 400m southwest off 46# wind turbine,

which is the Neolithic culture remains about 5000- 6000 years old, with an area

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of 2500m2.In construction period, construction is forbid in this area.

(2) Operation Period

It will produce the noise that the air blower is operated, and bring certain

adverse effect on acoustic environment of nearby village. Land occupation

forever will cause a certain influence to local ecological environment, water

and soil conservation, etc.

1.6 Recommended Mitigation Measures

The environmental mitigation measures in construction period of the

project includes water environmental protection, atmosphere environmental

protection, protection of acoustic environment, ecological environmental

protection, water and soil conservation, protection of historic relic site, etc.

We have already made the detailed environmental management plan,

which contains environmental mitigation action plan, environmental

supervision plan and environmental monitoring plan.

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Chapter 2 Survey of the Project

2.1 Geographical Location

Changjiang’ao Wind Power Field locates at the inner bay area, where is

about 10 kilometers away from the downtown of Pingtan. It faced to Taiwan

Ditch on the Northeast, and Haitan Ditch on the South-West. Fig.1 shows its

geographical location.

2.2 Scope of the Project

67 units of the wind power turbine will be installed at the newly built wind

power field, the total volume of which reaches to 100.5MW, and it will supply

the power of 260 mega-kW.h to the power grid.

2.3 Introduction of the Phase I Project of the Wind Power Field

The phase I project located at the central area of the planned wind power

field, where is showed at Fig.2.

6000kW of power units were installed at the phase I Project, the total

investment is RMB 600,000. 10 units of wind turbine manufactured at BAZAN

company of Spain, all of which were BAZAN-BONUS 600kW MK-IV

fix-distance screw blades, and the unit capacity is 600kW. The diameter of the

wind turbine is 44m, each wind turbine consists of 3 blades and and the hight

of the tower is 50m.

The output voltage of the wind turbines is 690V, and the power connected to

the Pingyuan Transformer substation as single 35kV loop after one level

transformed, of which the 35kV power facilities is a single bus loop that layed

out on the wind power field composed of the 10 sets of wind turbines, of which

the central control building was at the central area, where 100m away on the

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north of the turbine7#, and the building was designed as 20MW power output

in advance.

The Phase I Project occupied 13 mu (1mu=667 m2) of lands permanently,

and about 20 mu for construction period use temporarily, all of which were

forest lands of state-run Changjiang Forestry Farm.

The Phase I Project began to construction from Oct.1,1999, and the 10

turbines generated power to the power grid smoothly on Oct.5, 2000, and it run

well since then. To June 2002, 27.17 million kW.h power in total was generated,

in which 14.49 million kW.h power was sent to the power grid in 2001, and its

annual output reached to 2520h. The present status of the Phase I Project is

shown at Fig.2-1 .

View of the wind power field Base of the wind turbine

Fig.2-1 Present Status of the Phase I Project of Changjiang ’ao Wind Power Field

2.4 Survey of the Phase II Project of the Wind Power Field

2.4.1 Layout of the wind turbines

Wind turbine units were arranged perpendicular to the prevail wind direction

North-east, whereas the 67 turbine units arranged as plum-like shape which distances

of row/column are 8D(560m)� 5D(350m) around the 10 turbines of Phase I Project. The

general layout of the project is shown at Fig.2.

2.4.2 Selection type of the wind turbine

From the feasibility research of the project, it’s planned to choose the wind turbine

units that are 1.5MW, varied blade -distance, constant frequency and varied speed. The

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rated power of the turbine is 1.5MW, the diameter of its blade is 70.5m, the height of its

wheel hub is 65m, the starting wind-speed is 4.0m/s, its rated wind speed is 12.0m/s and

the tangent wind speed is 25.0 m/s.

2.4.3 Electrical

The scope of the Phase II Project of Pingtan Changjiang’ao Wind Power Field is

67� 1.5MW, and its transformer substation locates near the pre-central control building.

The transformer substation connected to the power grid with 2 output loops of 110kV

voltage.

The output power lines connect the generator to transformer directly, and it sends

power of 10kV with the group composed of 5 units of generator. At the high voltage end

of the 1 st level transformer, the cable of HLYFGV22-10-3x95 connects to the ring bus of

10kV, then the group of composed of 5 units connects the 10kV bus of the wind power

field with 2 cables of HLYFGV22-10-3x120. The 1st transformer located at the bottom of

the tower, which is SCB10-1600/10 dried transformer, and the ring-bus box locates at

the 5 wind power turbines near the 110kV transformer substation. The distribution facility

of the group composed 5 generators consists of ring-bus box and power switches with

fuse. It ’s calculated that the total power loss from the bottom of the tower to the 10kV

bus of the 110kV transformer substation of the wind power field is 105.4kW, and the

average loss of each unit is 21.1kW.

2.5 Civil engineering

2.5.1 Base of the wind power turbine

It’s planned to choose the independent reinforced concrete large C30 plate base

for the wind turbine tower, of which the lower size is 18� 18m, the height is 1-2m, the

upper size is 6� 6m, and the volume of the concrete is about 600m3.

According to the different geological condition of the units, the depths of bases are

about 5m, which tops reach the same height as the ground surface, and the support

levels are common medium sands. Construction for the pits of the bases are open dug

with slops.

- 10-

2.5.2 Central control building

The central control building is expanded to 4 meters of the previous, which 2 office

rooms are increased on the 1st floor, and enlarged the areas of the 2nd and 3 rd floors

which were former semi-layer of cables and main control rooms. He total enlarged area is

100m2.

2.5.3 Power distribution facility room and transformer room

There are 2 layers of the Power distribution facility rooms, 10kV power distribution

facilities and capacitance room on the 1 st floor, which height is 4.80m, and 110kV GIS on

the 2nd floor, the layer is 9.60m high. The main transformer rooms of 1#, 2#, and 3# are

on the ground floor, which layer height is 14.40m, and the total area is 965m 2.

2.6 Ventilating

It’s natural ventilation and mechanical exhaust on the semi-layer of cables, and it

should not be less than 6 times per hour (6/h) to exchange the remain heats in the

rooms. One T35-11 axial-flow fan is selected which ventilation volume is 1364m3/h.

Natural ventilation and mechanical exhaust are used for the 110kVGIS distribution

facility room and it normally exc hanged the air not less than 2 times per hour (2/h). The

input ventilation is at the lower part of the room, whereas the output exhaust connects

out of the room and higher than the roof. The milti-flow fan of SWF-I is selected, which

total ventilation volume is 5252 m3/h.. The upper part accident ventilation system is

installed in the room, and its total exchanging ventilation times should not be less than 4

every hour. The anti-corrode axial-flow fan of BT35-11 is selected which ventilation

volume is 1905 m3/h. In case of accidence, the normal ventilation system runs and the

accident ventilation system started at the same time. Anti-corrode fan is selected and

ventilation pipes are painted with anti-corrode oil paints .

Natural ventilation and mechanical exhaust are used for the 110kV power

distribution facility and capacitance rooms. The ventilation amount is counted according

to the temperature should not higher than 40? . 3 axial-flow fans of T35-11, each

ventilation volume is 5881m 3/h.

- 11-

Natural ventilation is used at the main transformer room, and the ventilation amount

is counted according to the temperature should not exceed 45? .

2.7 Construction planning

2.7.1 Communication

(1) Present communication facilities

To outer areas, it’s by ships from Port Lianggong of Pingtan to Xiaoshandong of

Fuqing, where the Provincial highway connects express highway from Fuzhou to

Xiamen. At present, Port Lianggong of grade 5000t is the largest port of Pingtan, and

Changjiang’ao Wind Power Field is about 28km away from Port Lianggong.

Changjiang’ao Wind Power Field connects downtown of Pingtan via highway of

Pingtan to Suao, then to Port Lianggong from the county highway of Pingtan. It’s in

convenience around the Wind Power Field.

(2) Large (long) goods shipping

For the w ind power generator units which capacity is 1.5MW, it’s normal

shipping of the turbine cabin which is the heaviest part, while the blades that is the

longest parts(its length is about 34m) need to be considered as super long shipping.

All cabins and blades are import equipment that were shipped by ocean ships to

Port Mawei of Fuzhou, then to Port Lianggong of Pingtan by smaller ships, and

finally to the site by flat truck. The roads for transportation are county or village

highways which radii meet the needs for large equipment.

2.7.2 General layout of the site

67 units of the wind turbine will be arranged at the planned field. According to

construction planning, it’s considered that each unit occupies the area of 25� 25m. The

construction site for each unit arranges on the spot, and a land of 70 � 70m is

considered as the construction site of each unit because of the pile of equipment and

the materials as well as installation of cabin and blades, where includes the land

occupied by the wind turbine.

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According to the system planning, the wind power field connects the power grid with

110kV, which output cables are 2 loops to the 110kV Beicuo transformer substation

where is 15km away on the South. The transformer substation of the wind power field

locates at the central north of the site, which is enlarged to the built substation of the

phase I project of Pingtan Wind Power Field. The 110loops output to the south, and it’s

in convenience of the loops.

Construction and watching paths in the site are built with silt and gravels, and the

length of the newly built roads is 31.50km, which width of the base is 4.5m.

2.7.3 Construction of the principal engineering

Since construction works of the field are the same to others, and their routes are long,

a temporary construction base at the central site would be built for convenience of works,

in which arranged temporary living houses, storages etc. Removal air -compress and

concrete-mix station will be set according to the characteristic independence for each

unit.

2.7.4 Construction for the base of the wind turbine

The base of the wind turbine is mass concrete, which is built at only one time.

2.7.5 Construction for other buildings

The schedules for the central control building, power distribution rooms and

transformer rooms etc. are like follows: excavation of bases, concrete mix of bases,

concrete mix for the column, concrete plates and beams, laying bricks of the wall,

windows and doors installation, decoration for inner and outer parts, electrical facilities in

the rooms, decoration and installation for inner and outer remain parts, and finally

finished.

2.8 Installation for the wind turbine

2.8.1 Main mechanical equipment

main crane : 300t track crane

associate : 80t hydraulic stretch track crane

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track cranes may be got by renting.

2.8.2 Layout of the installation site

The main parts of the wind turbine include blades, cabin, rectifier hub, wheel hub,

and the tower cylinder etc. Generally, all parts are shipped to the installation site directly.

The location of the parts piled at the site depends on their size and the installation

schedules.

According to the weight of the cabin, includes the wheel hub, and the feature of the

track crane, it’s determined that the distance from the center of the track crane to the

center of the wind turbine base is about 15m (i.e. the range of the track crane). The

installation length for hanger of truss on the ground is 75m.

It’s demanded that the wheel hub, blades, and the rectifier hub will be installed on

the ground, and the total length from the center of the wheel hub to the end of the blade

is about 35m.

2.8.3 Method of installation

The procedure for separately installation of the parts include the frame of the tower

should be as follows:

The bottom, middle and upper parts of the tower should be separately installed in

order. It should be connected to the technical specification between the bottom part of

the tower and the upper flange panel of the wind turbine base joint part, as well as the

end flange panels between tower frames.

The blade and pilot systems should be locked before the cabin installation. When

installing, hanging up the cabin about 0.15m on the ground, checking if the steel rope

system meet the demand of intensity, then keep on starting track crane after approval,

and the cabin is lifted slowly to the upper location of the tower, it’s connected properly

between the bottom grange of the cabin and the top of the tower.

The wheel hub, blades and the rectifier hub are installed assembly on the ground. It

should keep 3 blades balanced while the track crane lifts the wheel, and the wheel and

cabin joint reliably via flanges as the center of the wheel rises slowly to the front of the

cabin.

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The wind turbine installation is accomplished when all operation above finished, and

mechanical equipment removed.

2.9 General construction schedule

According to the condition of hydrology, meteorology, terrain, geology and

communication of the site area, as well as the circumstance of the project, the general

time limit of the project is preliminary estimated as 24 months after the feasibility

research and the loans examined and approved by the World Bank, under the

consideration of one set of track cranes rented and installation of the wind turbine one

by one.

2.10 Labors

After the Phase II project of Changjiang’ao Wind Power Field completion, 15 staffs

are specified, and staffs work in 3 shifts.

2.11 General investment of the project

It’s estimated that the general investment of the project is RMB 85.994 million

yuan.

2.12 Project characteristics

Table 2-1 shows the characteristics of the Phase II Project of Changjiang’ao Wind

Power Field.

Table 2-1 Characteristics of the Phase II Project

Order & Name Unit Amount Note I Wind Power resource

1 Annual Average wind speed m/s 8.21 70m above the ground

2 Wind power density W/m 2 476

3 Prevail Wind direction N, NNE, NE 4 Ratio of Prevail Wind direction % 66

II Main Equipment

1 Main Mechanical& Electrical Equipment

Wind Power Generator

- 15-

Order & Name Unit Amount Note

Quantity set 67

Rated Power kW 1500 Number of Blades 3

Diameter of Wind Wheel m 70.5 Swept Area of Wind Wheel m2 3903

Speed of Wind Wheel rpm 11~ 22 Variable

Tangent Input Wind Speed m/s 4

Rated Wind Speed m/s 12

Tangent Output Wind Speed m/s 25 Safety Wind Speed m/s 59.5

Height of Wheel Hub m 65

Rated Voltage V 690 Central Monitor System set 1

2 Complete Output Engineering To Beicuo Transformer Substation

110 kV Separation set 2 2Loops, 110kV Transmission Lines km 15

III Civil Engineering 1 Central Control Building 1 Type Frame Structure

Feature of the Base Medium Sand

2 Base of Wind Power Generator hole 67

Type Independent Feature of the Base Medium Sand

3 Permanent Occupation Land hm2 31.63 474.55mu

Area of Wind Power Turbines hm2 4.18 Area of Transformer Substation hm2 0.46

Area of Site Roads and Sub-cable hm2 26.99 IV Construction 1 Amount of Main Engineering

Excavation of Wind Turbines and Transformer Substation m

3 30,000

Fill of Wind Turbines and Transformer Substation

m3 42,000

Excavation of Site Roads m3 12,500

Fill of Site Roads m3 7,500

2 Main Building Materials

Cement t 18615 Reinforcing Steel Bar t 1749

Steel t 640

Timber m3 374 Sand & Stone m3 121355

3 Newly Built Roads km 31.50

- 16-

Order & Name Unit Amount Note

4 Construction Time Limit

Total Time Limit month 24 Installation & Debug week 28

5 Rent lands for Construction hm 2 18.85

Chapter 3 Present EIA and Assessment

3.1 Brief introduction

The natural and social environments, as well as present environment quality of the

project site and its surrounding areas are mainly introduced in the chapter.

3.2 Survey of natural environment

3.2.1 Climate

Pingtan locates at the edge of the Eurasia, and it is typical subtropical monsoon

climate. The climate feature is that the dry and rain season is separated obviously, and

it’s warm in winter and cool in summer, it’s rare of frost and snow.

Table 3-1 lists the climate index of the project area that is according to the statistics of

Pingtan Metrological Station.

Table 3-1 Meteorological index of Pingtan

Item Unit Value Item Unit Value

Annual average temperature

�C

19.5 Annual gale days(minimum)

d 51

Extremely high temperature

�C

37.4 Annual fog days d 23

Extremely low temperature

�C

0.9 Annual fog

days(maximum d 35

Annual average precipitation

mm 1151.5 Annual fog days(minimum)

d 9

Annual precipitation days d 131.0

Annual thunderstorm(average) d

24.4

Annual gale days(average) d 98.3

Annual thunderstorm(maximum) d

36

Annual gale days(maximum)

d 176 Annual thunderstorm(minimum)

d 17

Annual average wind speed m/s 8.25 Prevail wind direction

NE

Rare snow, no snow gathered and rime

- 17-

Pingtan Wind Power Field locates along the coast, and its principal meteorological

disaster is typhoon (the tropics cyclone and thunderstorm.

According to the statistics of typhoon in Fujian Province, there are 6 tropical cyclones

influenced Pingtan Island annually, and their wind speeds are mostly under 25m/s, while

those greater than 25m/s are in 20 hours by average.

Thunderstorm is one of the disasters of the area. The distinguishing feature of

thunderstorm in Fujian Province is that they mostly occurred in inner mainland and less

along the coast and islands. The annual-average- day of Pingtan County is 24.4d.

3.2.2 Topography and geology

It’s mainly ocean deposit plains of Pingtan’s topography, and it shows the feature of

island-bulge. The planned project site locates at the north area of Pingtan, where the

terrain slopes gently, that belongs to the coastal wind deposit plain and separate

remnant hills, which may be divided as remnant hill district (diorite) and plain(diorite and

granite) in geological units.

According to of the State Bureau of

Seismology in 1990, the basic earthquake intensity of the site area is 7.

3.2.3 Soil

There are 6 types of soil in Pingtan, that are brick-red soil, coastal sand, salt soil, rice

soil, red soil and wet soil, which are 46%, 23.3%,3.16%, 0.66%, 0.45% and 0.19% of

total land squares. All of them are thin layers and low nutrient. Black pines and jequirity

trees are suited to be planted at the brick-red soil and red soil, whereas wood ephedrine,

wet-land pines and artificial trees are appropriate growing at the coastal sand, salt soil,

rice soil and wet soil.

Soil at the project area is mainly coastal sand soil.

3.2.4 Hydrology

There is no river in Pingtan, and surface runoff is weak there. It’s lack of water area,

where is mainly depends on rain and underground water.

There is no river in the planned project site area, and only a small stream called

- 18-

Shangpanhu, which flow is small.

3.2.5 Vegetation

The project locates at wind gap, where the weather is bad, and the present vegetation

crops and coastal windbreak forest. Sweet potato, wheat, peanut and other crops are

planted in the farmland. Wood ephedrine is the main plants with small amount of

jequirity trees, black pines and wetland pines in the forest. Please see Fig. 3-1.

Fig.3-1 Present vegetations at the site

3.2.6 Terrestrial animal

From the investigation of our Institute for the project area in May 2004, no migratory

birds and rare protected animals were found.

It’s confirmed by the Protection & Management Station of Wild Animal in Pingtan that

here is neither habitat place of migratory birds, nor rare protected animals, where are

only small wild animals such as sparrows and voles etc.

3.2.7 Soil erosion

From the primary statistics results of the satellite remote sensing investigation, the soil

erosion area in Pingtan is 96 km2,.7km2, which is 33.05% of all land there, in which light

erosion 6.28 km2, Medium 14.36, and heavy erosion 6.53 km2. The reason of erosion is

mainly wind erosion. The soil erosion at the planned project site area is considerably

heavy, where belongs focal administration district.

- 19-

3.3 Survey of Social Environment

3.3.1 Regional economy

There are 5 towns and 10 villages governed in Pingtan County, where its total

population is 387,000, in which non-agricultural population is 15.1%, the density of

population is 1249 person/ km2.

Luyang village, Town of Pingyuan, Zhonglou village and Changjiang region of

State-run Forest Farm are mainly related of the project site.

Luyang village’s total area is 14.86km 2, its population 6737 in 2003, which is 1.7% of

that of the County, and its population density is 453persons/km 2. Agriculture is the

primary in Luyang’s economy and sweet potato, wheat, peanut are main crops there.

Output of peanut occupies a larger amount in the County, and its output per mu yields is

comparatively high. Total output value of agricultural, forest, livestock and fishing is RMB

4,014 yuan.

Town of Pingyuan’s total area is 23.68km2, its population 25,000 in 2003, which is

6.7% of that of the County, and its population density is 1056 persons/km2. Planting is

the primary in Town of Pingyuan and the total output value of agricultural, forest,

livestock and fishing is RMB 6,938 yuan.

Zhonglou village’s total area is 17km 2, its population 22,000 in 2003, which is 6% of

that of the County, and its population density is 1,294 persons/km 2. Agriculture and

aquatic are main production, that peanut and aquatics are main export products there.

Total output value of agricultural, forest, livestock and fishing is RMB 6,558 Yuan.

3.3.2 Present land use

Farmland and forest are main types at the project area, land occupation involves

Luyang and Zonglou village, Town of Pingyuan and State-run Forest Changjiang Region.

4667 mu in total area of the State-run Forest Changjiang Region will be occupied, in

which forest 4096mu include shelter-forest 3884mu, economical forest 68mu and

technical experimental forest 142mu. The shelter-forest is mostly composed of wood

ephedrine, and less wetland pines with a small amount of jequirity trees. Economical

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forest is mainly made up of oranges and tangerines. No migratory birds and rare

protected animals were found. The timber stored up of the region is 5,460 m3 at the end

of 2001. 2 staffs (protectors) were employed in the region, and no other persons living

there.

Table 3-2 shows indexes of villages and towns affected by the Project.

Table 3-2 Index of village and town affected by the Project

Town or Village

Village Population Farmland (mu)

Forest (mu)

Lubei 568 695.6 483 Luyang

Yangzhong 1583 1621.1 317.6

Fengmei 2158 732.2 1470 Jianhu 1215 524.6 825

Liaoyuan 4287 1482.4 660

Shanxianmei 1842 626.3 1335

Shangpan 1859 678.4 1192

Rongshan 1228 386.5 889

Town of

Pingyuan

Wufeng 2196 649.3 149 Guanshan 2800 1073 2749

Kunhu 1295.8 592.1

State-run Changjiang Forest region

4026

3.3.3 Tourism resource

Pingtan County is rich in coastal tourism resources, and Haitan Scenic spot is

confirmed as one of the National key scenic spots.

There’s no scenic spot at the Project area, only Junshan Scenic spot is near the site

where locates at the south-east, the direct distance between them is about 3 km. The

location of Junshan is shown at Fig.1.

3.3.4 Wind power resource

The direction of prevail wind at Changjiang’ao Wind Power Field is NE, that the wind

speed declines weaker from the north to the south at the site area. According to the

hourly data of 8760 hours in the representative year to the wind speed and direction

from the observation tower located at the north of the site, it’s determined that the

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annual average wind speed at 70m above the ground is 8.21m/s, density of the wind

power is 476W/m 2, therefore there is 140,000kW of wind power at the site.

Changjiang’ao Wind Power Field is rich superiority in wind power resource.

3.3.5 Fishery

There are vast coastal beach and water area in Pingtan, and plenty of aquatic

products, where includes 80 fishery resource maintain regions . According to the function

diversion districts from < Function diversion districts of the sea in Pintan> (Bureau

of Sea and Fishery of Pingtan, Aug. 2002), the fishery resource and maintain areas

are mainly distributed at the south -east of the Project site. There’s no fishery

port,aquatic maintain, increasing and capture areas region near the beach of the Project

site, therefore no influence to the fishery resource.

3.3.6 Ecologic public welfare forest

From (Sep.2001), it’s determined that the area of state ecologic public welfare forest

is 82,207mu, and the area of Provincial ecologic public welfare forest is 65,502mu.

All forest lands of Shangpan, Rongshan,Jianhu village of Pingyuan Town, and Lubei

of Luyang Village, Guanshang of Zhonglou Village, and State-run Forest Fam

Changjiang Region belong to State or Provincial ecologic public welfare forest which are

also shelter-forest. Table 3-3 shows the detail.

Table 3-3 Area of Ecologic public welfare forest of villages involved

Unit:mu Town/Village State ecologic public

welfare forest

Provincial ecologic public

welfare forest

Pingtan County 82,207 65,502

Luyang Village 704 9,484

Town of Pingyuan 2,484 5,733

Zhonglou Village 1,099 9,067 State-run Forest

Farm

17,153 161

Forest Farm of Changjiang Region

4,026 /

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3.3.7 Cultural relic and historic site

There is a long history in Pingtan, and abundant cultural relic, where is one of the

earliest ancients of Fujian Province.

There is the County relic protection spot Hupuqian Relic, that is 400m away from the

south-west of the 46# wind power turbine. This relic locates at the south -west slop of a

small hill, where is at the east of Hupuqian Village of Pingyuan Town, which the height is

15m and its area is 2500m2. It ’s a historic relic of the Neolithic Age of 5,000-6,000 years

ago, and it’s not exploited now, and it needs further criticism research. The location of

the relic is shown at Fig.2.

There is no other cultural relic spot found near the Project site.

3.3.7 Mineral resource

Rock, quartz sand and sea salt etc are main mineral resources in Pingtan.

There is quartz sand mine is at the northwest of the planned 59# wind power turbine,

which area is about 20,000m 2, and its products are quartz sands for selling. Fig.3-2

shows the mine.

Fig 3-2 Exploitation area at the quartz mine

3.3.8 Breeding

A piggery farm is under building at the north of 44# wind power turbine, which belongs

to ‘Sunlight ecology Agricultural Development

Ltd. Co.’. It’s estimated that 10,000 pigs will be output by the farm when it is builted.

- 23-

Fig.3-3 shows the building piggery farm.

Fig. 3-3 Building Piggery Farm

3.4 Present Environmental Quality

The site of Changjiang ’ao Wind Power Field belongs to the village inhabitant area,

and the present acoustic environment follows the Standard 1 of (GB 3096-93), that is 55dB at daytime and 45dB at night. While the

project is under building or completed, it’s a mixed area with inhabitants, commercial

and industry, the sensitive spots around the Wind Power Field follow the Standard 2

during its operation that is 60dB at daytime and 50 dB at night. The environmental

atmosphere must meet the demand of Standard 1 of (GB 3095-1996). Above standards have been confirmed by the

environmental Bureau in Pingtan(see annex4).

There are large amount of ecologic public welfare forest in the project site at present,

which are good at shelter for wind and sand, and less inhabitants live at the site, no

obvious air pollution source there, the quality of air is good.

To understand the present acoustic quality of the planned project area, our Institute on

May24 2004 did monitoring for the present acoustic environment, and the Noise Statistic

Analyzer of AWA6218B was used. The measurement spots are mainly considered to the

location of the present noise source and sensitive spots, which location is shown at

Fig.2 and the result see Table 3-4.

From the result of monitoring, it’s obviously that the monitored spots that are near the

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communication source, such as spot2#, 3#and 4#, their noise are all exceed the

Standard 1 of (GB 3096-93), whereas all

others meet the Standard 1 when they were not interference of communication.

Table 3 -4 Monitoring result of noise at the Project Site (daytime)

No. Location of the measurement spot Leq(dB)

1 On the road to the site, at the north-east

of the pre-wind power site

50.4

2 Under 7# wind turbine, 1m to it 60.8

3 Between 8# and 9# wind turbines 57.7

4 160m to 7# wind turbine, vertical to the blade surface

55.3

5 160m to 7# wind turbine, parallel to the blade surface

52.8

6 Office building of Luyang Village 49.3

52.6(no

traffic)

7 Shangpan village, at the side of highway

73.8 (traffic)

8 Spare land of the south to Shangpan, and the north to Shanxianmei,the nearest distance to the wind turbine is 300m

48.2

54.2(no traffic)

9 Primary School of Shanxianmei

67.6

(traffic) 10 Piggery Farm 44.6

STANDARD 55

*The list wind turbines are 1#-10# wind turbines of the Phase I Project of Changjiang’ao Wind Power Field, which are in operation.

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Chapter 4 EIA and Mitigation Measures

4.1 Acoustic Environment Impact

4.1.1 Construction stage

4.1.1.1 Construction mechanical noise

Civil engineering mainly includes excavation of the base of wind turbines,

installation site leveling, construction of newly built roads at the site and

building production and living construction etc.

Construction noise is generated from construction machines of civil

excavation and transportation. Machines such as concrete mixers, pneumatic

drills, excavators, heavy trucks etc as well as transportation trucks generate

noise when they run. The average acoustic level of primary construction

machines is listed at Table 4-1. Generally, Noise impact is only considered at

daytime, as it didn’t work at night during construction period. According to the

schedule for construction, the concrete was centralized mixed of movable

mixers, the main construction machines at each wind turbine are pneumatic

drills and excavators. The construction noise at daytime is primarily considered,

which source intensity is counted as 84dB.

Table 4-1 Average noise level of main construction machines

Machine name Noise level(dB) Noise limitation

(daytime,dB)

Concrete mixer 64 75 Pneumatic drill 84 85

Excavator 80 75

Carry truck 80 Note: (1) Listed data is measured at 15m to the noise source.

(2) Noise limitation is the related standard value on (GB 12523-90).

Investigation at the site shows that the construction site is smooth terrain, no objects

sheltered around. It’s mainly considered the geometric divergence decline and ground

- 26-

additional divergence decline of the point acoustic source to forecast the noise impact of

construction machines. According to , the basic formula for geometric divergence decline for non-direction

acoustic source is selected:

LA(r) = LA(r0)-20lg(r/r0)-AEXC

In which:

LA(r): noise A pressure of the forecast point(dB)

LA(r0) : noise A pressure of the reference point(dB)

r: distance between the forecast point and noise source(m)

r0: distance between the reference point and noise source (m),

15m selected

AEXC: additional divergence decline of ground effect,

AEXC=5 lg(r/r0), the maximum value of forecast result is 10dB.s

Construction noise is merged from several machines run simultaneously. According to

the feature of constructionfor the wind power field, each unit is a cons truction spot, and

several spots run in turn, and the quantity of machines is comparatively small at the

same time and same spot, therefore the noise level of several machines is counted as

87dB (15m).

Table 4 -2 Calculation result of divergence decline of construction at

daytime

Unit:dB

r(m) 50 100 135 180 Standard

single 77 71 63 60 57 L(r)

multiple 80 74 66 63 60

60

Table 4-2 shows that construction noise affects surrounding acoustic environment

greatly at daytime, in case of a single machine at 135m, noise decreasing may be

meet level 2 of (GB 3096-93), whereas

several machines need the distance 490m to meet the standard level 2.

Compare to Table 1-2, it’s clear that only 3 sensitive spots of

- 27-

Shanxianmei,Guanlouxia and Hupuqianwill be affected from the construction noise in

varying degrees. In order to mitigate the influence of construction noise to surrounding

sensitive spots, Low noise machines should be selected, and the maximum noise

value of each machine should be less than 100dB(at 1m).

4.1.1.2 Communication noise at the site

31.50km of roads will be newly built at the site, which is made of clay-crushed

stones, and the width of the base 4.5m. Communication

noise will be generated when transportation trucks run during construction. The main

building materials for the project including steel-bars, cement, sand and stones, timber

as well as carbines of the generator (51.40t), and blades which length is 34.0m need

to be transported. Total amount of transportation is comparatively small, which

includes 374m 3 of timber, 19,000t of cement, 2,389t of steel and reinforced bar,

121,000t of sand and stone, 67 groups of carbines and blades. The communication

noise is less because of less increase of traffic flow. It’s clear that there is basically no

distribution of sensitive spots (village and school etc) along both sides of roads to the

project site, and communication noises of trucks impact the acoustic environment very

small.

4.1.2 Operation stage

The primary noise source during operation period of the wind power field is the noise

of the wind turbine unit. 67 of 1500kW wind power units which noise level is 105dB,

and the wheel height is 65m, its diameter of blades is 70.5m. Considering that the

height of the turbine to the ground is comparatively high,(100 m) to the turbine is small

and it’s neglected at forecasting, the only factor of geometric divergence decline is

selected during noise impact forecasting.

According to the , Following

formula is in use:

LA(r) =LwA-20lgr-11

In which:

LA(r) is the noise value of the forecast spot (distance=r), dB,

- 28-

LwA is the value of the noise source, dB,

r is the distance to the forecast spot, m.

LA =10lg[ S] ]10lg[101

1.0∑=

=n

i

LA

AiL

Influence of merging the noise of various wind power turbine should be in

consideration of the noise intensity of the forecast spot.

In which:

LA: level A acoustic intensity of various noise sources merged.

LAW: A acoustic intensity of a single noise source.

In forecasting, it mainly analyzes the impact extents of the turbine noise to

13 of sensitive spots nearby, including Shangpan, Shanxianmei, Fengmei,

Wufeng, Yuyao, Guanlouxia, Lulou, Xibianlou, Yangjia, Kunhulou, Luyang

Middle School, and planned Piggery Farm. The distances of each sensitive

spot to the wind turbine is shown at Table 4-4. In order to forecast the influence

of noise to the sensitive villages of the Wind Power Field, and acoustic impact

forecast was done at the selected forecast spots where the nearest spot to the

wind turbine at each village. Fig.2 shows the location of the forecast spot.

The height of the wheel hub is 65m, and the lowest point to the ground is

30m high because of the high turbine wheel. Because of the smooth terrain

and considerably low of buildings of sensitive spots and vegetations to the

wind turbines, there is no shelter to the noise of turbine, and it’s not under

consideration.

The forecasting value of noise where is the nearest spot to the turbine of

every sensitive spot is shown at 4-3.

- 29-

Table 4-3 Noise impact forecasting during operation period

Noise value at forecast spot(dB) No. Village Nearest

turbine

Nearest

distance

To the Turbine (m)

Affect

value

Backgro

und At daytime

Merged

value

Increase

d value

6# 500

5# 710

4# 995

12# 370

11# 705

22# 660

21# 665

1 Shangpan

20# 840

47.5 52.6

(no vehicle) 73.8

(vehicle

passed by)

53.8

(no vehicle) 73.8

(vehicle

passed by)

1.2

(no vehicle) 0

(vehicle

passed by)

29# 505

28# 755

39# 145

38# 480

2 Shanxianmei

37# 820

51.7 54.2(no

vehicle)

67.6 (vehicle

passed by)

56.1(no

vehicle)

67.7 (vehicle

passed by)

1.9(no

vehicle)

0 (vehicle

passed by)

39# 450

38# 770

48# 400

47# 665

3 Fengmei

46# 945

46.1 48.2 50.3 2.1

48# 275

47# 500

46# 775

56# 375

55# 655

4 Wufeng

54# 915

48.7 48.2 51.5 3.3

56# 200

55# 460

54# 730 65# 460

5 Yuyao

64# 710

49.8 48.2 52.1 3.9

64# 200

63# 160

62# 500

6 Guanglouxia

61# 525

52.6 48.2 53.9 5.7

- 30-

64# 535

63# 535

7 Lulou

62# 725

43.5 48.2 49.5 1.3

64# 715

63# 420

62# 275

61# 450

8 Xibianlou

60# 775

48.4 48.2 51.3 3.1

60# 325

67# 435

61# 605

9 Yangjia

62# 920

46.7 48.2 50.5 2.3

59# 290

58# 325

57# 610

10 Kunhulou

56# 490

46.7 48.2 51.4 3.2

67# 635

59# 660

58# 840

11 Luyang

Middle School

66# 725

43.1 54.2 54.5 0.3

37# 650

36# 360

35# 525

45# 300

44# 395

12 Planned

Piggery Farm

43# 675

49.2 44.6 50.5 5.9

39# 330

38# 290

37# 530

13 NE

Hupuqian

46# 415

48.8 48.2 51.5 3.3

46# 345

47# 120

14 SW

Hupuqian

48# 350

53.3 48.2 54.5 6.3

Table 4-3 shows that the noise value of all sensitive spots except Shangpan

and Shanxianmei meet level 2 standard (60dB) of at daytime, and only 3 spots of Shanxianmei, Guanlouxia

and SW Hupuqian exceed the level 2 standard a little bit at night. The sound of

wind is the primary background noise, and itis related to its speed, the higher

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the speed, the greater the sound of wind. The noise(Leq) may be over 70dB,

when the speed of wind (U10) reaches 10m/s above.

The annual average wind speed at the project site is 8.21m/s at the spot

above 70m on the ground, that is, U10 is about 6.3m/s, while the rated wind

speed is 12m/s at the planned wind power field. Since the local wind speed is

high, the background noise is also great; therefore the noise impact of turbines

to local villages is relatively small.

Proper adjustment of the turbine location may be considered to decrease the

noise impact of turbines to Shanxianmei, Guanlouxia and Hupuqian at largest

extent.

Table 4-4 shows the noise value of above sensitive spots after the location of

wind turbines adjusted. It also shows that the value of noise generated by the

wind turbine at the sensitive spot may be less than 50dB, only if the location of

the turbine 39#, 64#, 63# and 47# adjusted properly, and increased the

distance 50-100m between turbine and sensitive spot.

Therefore, incase of not or less increasing interfere of tail flow among

turbines, proper adjustment locations of turbine 39#, 64#, 63# and 47# may

decrease the impact of turbines to the sensitive spots to the lowest extent, and

the power output didn’t be or less influenced.

- 32-

Table 4 -4 Noise impact forecasting around turbine location Adjusted

Un-adjusted

location

Adjusted location Village Nearest

turbine

Nearest distance

to turbine

m)

Noise at Forecast

Spot

(dB)

Nearest distance

to turbine

Noise at Forecast

Spot (dB)

Distance

Increasing

(m)

29# 505 505 -

28# 755 755 -

39# 145 195 50

38# 480 480 -

Shanxianmei

37# 820

51.7

820

49.8

-

64# 200 250 50 63# 160 260 100

62# 500 500 -

Guanlouxia

65# 525

52.6

525

49.8

-

46# 345 345 -

47# 120 220 100

SW Hupuqian

48# 350

53.3

350

49.7

-

4.2 Ecologic Environment Impact

4.2.1 Impact on vegetation

It’s necessary that definite land occupation is needed for the base of wind

turbines, 110kV substation, roads at the site, cable in the earth and

construction site. Land occupation of the project is shown at Table 4-6.

Table4-5 Land Occupation Requisition Table

Unit: mu

Temporary land occupation

Permanent land occupation

Forestry

land Cultivated

land Forestry

land Cultivated

land

Total

The Bases of wind turbine - - 43.10 19.68 62.78 The area for

installing and construction

294.83 134.60 - - 429.43

110kV step-up substation - - 6.98 - 6.98

Access and cable buried - - 404.8 0.25 404.8

Subtotal - - 3.80 19.93

- 33-

Total 294.83 478.61 908.04

Table 4-6 shows areas of various forest types of land occupation of the

project. Total area of permanent occupation of forest is 458.68mu; in which

wood ephedrine is the main vegetation that is windbreak forest to play an

important role of wind-proof and sand-fixation, and 1.88mu of oranges, 3.75mu

of jequirity trees, 0.93mu of pine trees, and a small amount of land for

forest-planting. It shows that the quantity of oranges, jequirity trees and pines

is less at the permanent land occupation of the site, and its impact is not

evidence. The land occupation of the Project is only 4.6% of the total forest

area at the district involved, there’s less impact to the local region. In the scope

of permanent land occupation of the Project, 19.93 mu of farmland was

included, which crops are sweet potato, wheat and peanut etc. Because of less

amount of farmland, that it’s only 0.1% of total local farmland(16418.6mu), less

impact to the local farmland vegetation is occurred.

Besides permanent land occupation, temporary occupation of part forest

and dry farmland is needed for installation wind turbines, which types are the

same as permanent occupation. The ecologic impact of construction

occupation is temporary, it will be disappear when the wind power field runs

after construction completed, and wood ephedrine and other local trees are

planted.

- 34-

Table 4-6 The Statistical Table of Vegetation Requisition for Phase?

Project of Changjiang’ao

Unit: mu

Town&forestryWooden Chinese

ephedra Mandarin trees Lovesickness trees Pine

Total land occupation

Temporary

Land

OccupationTotal land occupation

Temporary

Land

OccupationTotal land occupation

Temporary

Land

OccupationTotal land occupation

Temporary

Land

Occupation

The state-owned

forestry 134.26 57.68 7.35 6.41 0 0 20.16 19.23

Luyang 177.6 44.87 7.35 6.41 0 0 6.41 6.41

Pingyuan 284.47 96.14 0 0 29.39 25.64 0 0

Zhonglou 57.87 12.82 0 0 0 0 0 0

Total 654.2 211.51 14.7 12.82 29.39 25.64 26.57 25.64

Note: “Total land occupation ”means the total area of permanent land occupation and

temporary land occupation.

4.2.2 Animals

The planned project site is far from the coastal water area, which the

nearest distance is greater than 500m, and no fishery district nearby.

No protected animal was found at the project area, and there is no habitat

or migration route of migratory birds, that is shown at Annex 2.

No impact was involved to wild animals of the Project.

4.3 Soil erosion Impact

4.3.1 Forecast stage of soil erosion

Forecast soil erosion is divided to two stages, construction period and

operation period. During construction, construction activities as smoothing the

sites, base excavation, waste soil piled or filled and part of trees cut will

- 35-

destroy facilities of water and soil conservation.

During operation, water and soil conservation may be under control

efficiently in case of proper prevention measures, but soil erosion may be

occurred to some extent because the primary terrain was interfered, and it

needs time for vegetations to be returned to normal.

Soil erosion during operation stage is much smaller than that in

construction. Construction is the important stage for soil erosion forecast and

prevention.

4.3.2 Discard volume

The filling volume of soil and stone is shown at Table 4-7.

Table 4-7 Excavation/fill back Balance Table

Unit: m3

The excavating volume

The fillback volumn

The Dregs volumn

Wind turbine and

step-up substation

30,000 42,000 -12,000

Access 12,500 7,500 5,000

Total 42,500 49,500 -7,000

It’s clear from Table 4-7,that total excavation is 42,500m3, and fill 49,500m3

in construction, while small amount of discard soil may be used as filling the

base of the wind turbines. From volume balancing of soil and stone, there is no

discard of the project.

4.3.3 Destroyed facilities of soil conservation

The main facilities of water and soil conservation at the scope of the project

site are forestlands , and total interfered previous terrain area 908.04mu(605,

360m2), in which the area of water and soil conservation is 753.51mu(502,

340m2), including that of permanent 458.68mu(305,786m 2), and temporary

294.83mu(196,560m2).

- 36-

4.3.4 Amount of soil erosion

Because of the different components of lost materials, experience formula is

selected to forecast the interfered land that is bared surface. Following is the

calculation formula:

Q = m � A� a

In which:

Q is increment of water and soil erosion (t);

M is average soil erosion intensity increment around the construction of the

project (t/km 2.a), 1500t/km 2.a of forestland, 0t/km 2.a of farmland;

A is the surface area interfered (km 2);

a is erosion time(year), I year for permanent occupation and 3 years for

temporally occupation.

From calculation, total erosion increment amount of construction of the

Project is about 1350t.

4.3.5 Harmfulness of soil erosion

Wind erosion is the primary soil erosion type at the site area, and the

forestlands at involved Town of Pingyuan, Luyang and Zhonglou Village, and

state-run forest farm are all protection forest mainly composed of wood

ephedrine trees, that play an important role to wind-proof and sand-fixation.

During construction of the project, 749.71mu forestland in total is occupied

temporarily or permanently, which is 4.6% total amount of the regional forest

area involved.

Occupation of forestland will decrease the function of windproof and

sand-fixation, but it will still play the role of wind-proof and sand-fixation by the

surrounding protection forest, and the soil erosion caused from wind will be

limited around the areas of turbines. Harm of soil erosion of the project is

considerably small.

- 37-

4.3.6 Prevent measures for soil conservation

(1) Installation site

It’s planned that there is a certain area installation site for each wind

turbine, and a temporally construction base will be established in the site.

429.43mu land is needed as temporary occupation for construction. It should

be strictly followed the design requirement to decrease the construction

occupation. After excavation, it’s necessary to pour concrete and fill at the site

in time, to decrease erosion. After construction completion, temporary

occupation should be return to normal in time or v