Extensive Application Of Oil-free Electricity Supply ... 275kV and 132kV Transmission Network ... The Highest Distribution Substation in Hong Kong Island is ... Microsoft PowerPoint

2008 Hong Kong Awards for Environmental Excellence2008 Hong Kong Awards for Environmental Excellence

Information Dissemination & Experience Sharing SeminarInformation Dissemination & Experience Sharing Seminar

Extensive Application Of OilExtensive Application Of Oil--free Electricity Supply free Electricity Supply Equipment For Enhancing Environmental Performance Equipment For Enhancing Environmental Performance In Transmission And Distribution Of ElectricityIn Transmission And Distribution Of Electricity

28 March 2008

Hong Kong Awards for Environmental Excellence Information Dissemination and Experience Sharing Seminars

2

Experience Sharing for Experience Sharing for

HK EcoHK Eco--Business Awards 2006Business Awards 2006

-- Green Innovative Practice AwardGreen Innovative Practice Award

Contents:

1. Introduction to The Hongkong Electric Co., Ltd. (HEC)

2. Overview of the Green Innovative Culture in HEC

3. Elaboration of the Details of the Green Innovative

Practice of HEC −−−− Oil-free Electricity Supply

Equipment For Enhancing Environmental Performance

4. Highlights of the Contributions to Community arising

from HEC’s Green Innovative Practice


3


� Supplying Electricity to Hong Kong Island, Lamma Island and Apleichau for over 100

years

� Total Service Area is About 88km2 but with Day Time Population of around 2.5 Million

� Commercial and Financial Centres

� Extremely High Demand on Supply Reliability

� Densely Populated With Limited Supply of Land Space

� Extremely High Load Density


4


● Electricity Generation:

– Lamma Power Station

•••• Total Generating Capacity = 3,756 MW


5


● Electricity Transmission and Distribution:

– 275kV and 132kV Transmission Network


6


● Electricity Transmission and Distribution:

– 22kV, 11kV and Low Voltage Distribution Network


7

Hong Kong EcoHong Kong Eco--Business Awards 2006Business Awards 2006


Contents:

1. Introduction to The Hongkong Electric Co., Ltd.

(HEC)




Equipment For Enhancing Environmental

Performance

4. Highlights of the Contributions to Community

arising from HEC’s Green Innovative Practice


8


2.1 Integrate Environmental Considerations into All Aspects of

Business Activities

2.2 Employees and Contractors are Motivated to Contribute

Green Ideas for Continual Improvement and Many

Suggestions have been Implemented


9



Contents:


(HEC)





Performance




10

3. Details of the Green Innovative Practice of HEC

3.1 How is The Green Innovative Practice created in HEC?

3.2 Major Improvements over Past/Conventional Practices

3.3 Reasons for the Success


11

3.1 How is The Green Innovative Practice created in HEC?� Hong Kong Island is Densely Populated and Many Electricity Supply Substations are Located in High-

rise Buildings and Close to Customers

� Low Fire Risk, Environmentally Friendly, and Operational Safety are of Paramount

Importance

� Conventionally, Electricity Supply Industry uses Oil-insulated Equipment for Transmission and

Distribution of Electricity

� Treatment of Aged Insulation Oil

� Disposal of Waste Insulation Oil

� Oil Contaminations at Operational Premises

� Electricity Substations accommodating Oil-insulated Equipment

usually Require the Installation of Gaseous Fire Protection Systems

� Use of CO2 Gas or Ozone Depleting BTM

� Possible Release to the Atmosphere during Periodic Tests


12

3.1 How is The Green Innovative Practice created in HEC?

� Opt for Oil-free Equipment by HEC’s Management since late 70’s.

� Extensive Application of Oil-free Electricity Supply Equipment since then

� HEC is an Industry Leader with 100% High Voltage Switchgear and over 94% of

its Transformers in its Electricity Supply Network Oil-free


13

3.2 Major Improvements over Past/Conventional Practices

� The Oil-free Equipment for Transmission and Distribution of Electricity

Eliminates

� the Necessity of Installing Fire Fighting System, hence No BTM/CO2 Fire

Protection System which Makes It More Environmentally Acceptable, and

� the Need for Handling any Aged/Waste Insulation Oil.

� Elimination of ALL the Aforesaid Adverse Environmental Impacts and

Resources Allocations

� The Oil-free Equipment is also Highly Reliable and Requires Little Maintenance

� Ideal Choice for Upper-floor Substations in High-rise Buildings

� The Highest Distribution Substation in Hong Kong Island is Located at One of

the Financial Towers in Central at a Height of 293 Metres


14

3.3 Reasons for the Success

These achievements are attributable to

� Strong Support of HEC Management for Implementing Various

Environmental Initiatives

� Systematic Engineering Planning by HEC Engineers

� Efficient Implementation by HEC Workforce, Suppliers and Contractors


15



Contents:


(HEC)





Performance




16

4. Contributions to Community arising from HEC’s

Green Innovative Practice

4.1 Benefits to the Customers / Business Partners

4.2 Benefits to the Hong Kong Community and the Environment


17

4.1 Benefits to the Customers / Business Partners

� World-class Supply Reliability of Greater Than 99.999% since 1997

� Eliminated/Minimized Fire Risks

� The Owners (Usually the Incorporated Owners of the Premises) of the

Concerned Electricity Supply Substation Premises have Achieved very

Considerable Savings since They are No Longer Required to Install and to

Maintain the BTM/CO2 Gaseous Fire Fighting Systems.


18

4.2 HEC’s Innovative Green Practice Has Furnished Hong Kong

Community and the Environment with the following benefits:

� No need to use CO2 or Ozone Depleting BTM fire protection systems

� Eliminate the Generation of Aged/Waste Oil

� Elimination of Fire Risks and the Associated Adverse Environmental Impacts


19

HEC’s Green

Innovative

Practice of

Using Oil-free

Equipment

ENVIRONMENT1. Reduction/Elimination of Adverse

Environmental Impacts

2. Enhanced Environmental Performance

HEC1. Reduced

Wastage

2. Improved

Supply

Reliability

3. Cost Effective

4. Inspired

Morale

5. Customer

Recognition

Win-Win-Win for All

CUSTOMERS /

COMMUNITY

1. Exemplary

Green Solution

is Created

2. World-class

Customer

Services


- End -


Documents

Extensive Application Of Oil-free Electricity Supply ... 275kV and 132kV Transmission Network ... The Highest Distribution Substation in Hong Kong Island is ... Microsoft PowerPoint