Mrs susan Grocott PV Quotation

Proposal document for: Solar PV Installation

Susan Grocott22 The Quadrant South Wimbledon SW20 8SP

19.10.12

Quote No. Page Date

1 of 4 19.10.12

Mrs Susan Grocott22 The QuadrantSouth WimbledonSW20 8SP

Dear Mrs Grocott,

Please find below my quotation for the installation of 1.5 kwpeak comprising 6 JAY solar JKAM6-60 250watt panels mounted on one West facing roof.

I have simulated the returns for each proposal using both the Standard Assessment Procedure laid out in themcs certification guidelines and also with the aid of dedicated specialist analytical software created by thephotovoltaic department of the University of Geneva PV Syst. I have attached the simulations and thecalculations for the financial returns.

I have summarised the results for your convenience in the table on page 3. There is almost no shadingcompromise on the system.

Please be advised that from April 1 on order to qualify for the feed in tariff the property will need todemonstrate an energy efficiency level of D or above via an energy performance certificate. CompletePlumbing Clean energy will be very pleased to carry out this survey.

Please also be advised that s structural survey will be required to ensure that the roof will support the loadsrequired for the pv system . This survey can be provided by your own structural engineer. If oyu require us tocarry out and provide the survey we will be happy to make the necessary arrangements . However for this theroof structural timbers will need to be visible by an inspector.

Should you have any queries at all please do not hesitate to contact me.

Yours sincerely,

Nick Cotton

QUOTATION

Mrs Susan Grocrott22 The QuadrantSouth WimbledonSW20 8SP

ITEM DETAIL COST £

Item 1

Item 2

Item 3

To install but not to supply 6 of JAY Solar JAM6-60 250 wattssolar modules on one west facing roof.

To allow for working with your own building contractor toremove and replace tiles as requiredFor the penetration of the roof surface for the passage of pipesand cables and for the installation but not supply of appropriateflashings.(These estimates do not allow for the provision of safe high levelaccess to be provided by your own contractor)

To allow for the installation of solar pv inverters isolators cablesand materials including the supply of 4mm twin and earth cableand to allow for connection to the existing consumer unitproviding the consumer unit has a spare fuse-way suitable for theconnection of the solar system. The cable from the consumer unitto be run by your own contractor.

To allow for the carrying out of all electrical installation tests andfor the testing and commissioning of the solar pv array includingopen circuit voltage and closed circuit current tests depending onthe insolation rate at the time of commissioning.

To make available all test reports and test commissioningcertificates.

For additional works outside the scope of this quotation or forvariations to the agreed works an hourly rate of £45 per hour plusvat will apply as per our terms and conditions attached

As above but to supply LG250 SIC black frame modules

Energy Performance Assessment ( if required )

£3672.07 + vat

£430+ vat additionalcharge

£65.00 + vat

Labour, parts, materials Item 1£3672.07

+VAT @ 5% £183.61

TOTAL £3855.68

Quote No. Page Date

2 of 4 19.10.12

Quote No. Page Date

3 3 of 4 19.10.12

Size of System No of Panels Calculator Annual predictedoutput

PV Tarrif rate Net financial Gain /Pay Back period

1.5 kwp 6 SAP 1095.6kwh 0.154 £261.85/ 14.7years

1.5 kwp/JAM6-60 6 PV syst 1042kwh 0.154 £249.04 /15.48years

1.5kwp/LG250SIC 6 PV syst 1059kwh 0.154 £253.10/ 15.23years

Kwh stands for kilowatt hours which is the unit electricity usage is measured in. The Feed in tariff pays 43p at current levels for each unitgenerated by the system plus 4p for half the total generated which is assumed will be fed back to the grid. In addition it is assumed that halfthe total will be used in the property and so will yield returns from using your own electricity rather than buying electricity at 13p a unit from

your electricity supplier.

Mrs Susan Grocott22 The QuadrantSouth WimbledonSW20 8SP

Quote No. Page Date

3 4 of 4 19.10.12

Notes for your attention:

Please be advised that it is an assumption of our quotation that the roof structure is of suitable construction and state of repair asto be sufficient to support the installation of your solar panels. Our quotation will not normally allow for a structural survey ofyour roof. Should you have concerns about the roof structure we will be happy to commission a survey on your behalf.Otherwise complete plumbing clean energy cannot accept any responsibility for the structure of the roof beyond ourprofessional responsibility to ensure that the roof is not compromised in any way by the installation of the solar panelsthemselves.

Should at the time of installation our engineers become concerned about the state of the roof or the roof timbers we will bringour concerns to your attention and seek to agree with you a suitable way forward.

Should you agree to our quotation we would seek a deposit of 40% of the total value of the contract. Should the roof beunsuitable for the installation of the panels or work required to increase the load bearing capacity of the roof be uneconomic adeduction of £350 will be made to cover costs of the survey and the deposit returned.

Following the installation of the system Complete Plumbing will seek payment in full for all works carried out and materialssupplied. On receipt of payment in full Complete Plumbing will issue within 48 hours issue a mcs certificate and record theinstallation on the OFGEM database. The owner of the system will send the mcs certificate to the electricity supplier and fromthat date will be eligible for the feed in tariff payments.

Please be advised that in a situation where additional works beyond these estimates become advisable or necessary charges willbe applied on a strictly time and materials basis the rate for which is included in the text of your quotation.

Important Note Please be advised that while we would not expect the installation to require planning permission, as planningpermission is normally only required for listed buildings or areas of outstanding natural beauty. However in some areasplanning permission may be required for flat roof installations. We will not make planning enquiries unless specificallyrequested to do so. Should you wish us to make such enquiries Please inform us in writing. Charges may apply.

Page 1/412/11/12PVSYST V5.53

Susan Growcott1.5 kwp JAM6-60 x 6 SB1200 inverter 1042kwh

Grid-Connected System: Simulation parameters

Project : Susan Growcott

Geographical Site London Country United Kingdom

Situation Latitude 51.4°N Longitude 0.0°ETime defined as Legal Time Time zone UT+0 Altitude 5 m

Albedo 0.20

Meteo data : London, Synthetic Hourly data

Simulation variant : JAM6-60 x 6 1.5 kwp SB1200

Simulation date 12/11/12 08h30

Simulation parameters

Collector Plane Orientation Tilt 30° Azimuth 90°

Horizon Free Horizon

Near Shadings Linear shadings

PV Array Characteristics

PV module Si-mono Model JAM6-60-250/SiManufacturer JA Solar

Number of PV modules In series 6 modules In parallel 1 stringsTotal number of PV modules Nb. modules 6 Unit Nom. Power 250 WpArray global power Nominal (STC) 1500 Wp At operating cond. 1332 Wp (50°C)Array operating characteristics (50°C) U mpp 167 V I mpp 8.0 ATotal area Module area 9.8 m² Cell area 8.5 m²

Inverter Model Sunny Boy SB 1200Manufacturer SMA

Characteristics Operating Voltage 100-320 V Unit Nom. Power 1.20 kW AC

PV Array loss factorsThermal Loss factor Uc (const) 20.0 W/m²K Uv (wind) 0.0 W/m²K / m/s

=> Nominal Oper. Coll. Temp. (G=800 W/m², Tamb=20°C, Wind=1 m/s.) NOCT 56 °C

Wiring Ohmic Loss Global array res. 351 mOhm Loss Fraction 1.5 % at STCModule Quality Loss Loss Fraction 1.5 %Module Mismatch Losses Loss Fraction 2.0 % at MPPIncidence effect, ASHRAE parametrization IAM = 1 - bo (1/cos i - 1) bo Parameter 0.05

User's needs : Unlimited load (grid)

Page 2/412/11/12PVSYST V5.53


Grid-Connected System: Near shading definition



Main system parameters System type Grid-ConnectedNear Shadings Linear shadingsPV Field Orientation tilt 30° azimuth 90°PV modules Model JAM6-60-250/Si Pnom 250 WpPV Array Nb. of modules 6 Pnom total 1500 WpInverter Model Sunny Boy SB 1200 Pnom 1200 W acUser's needs Unlimited load (grid)

Perspective of the PV-field and surrounding shading scene

West

South

Zenith

East

Sun

Iso-shadings diagram

-120 -90 -60 -30 0 30 60 90 120Azimuth [°]

0

15

30

45

60

75

90

Sun

heig

ht

[°]

Susan Growcott : New shading scene

Beam shading factor (linear calculation) : Iso-shadings curves

1: 22 june2: 22 may - 23 july3: 20 apr - 23 aug4: 20 mar - 23 sep5: 21 feb - 23 oct6: 19 jan - 22 nov7: 22 december

5h

6h

7h

8h

9h

10h

11h12h

13h

14h

15h

16h

17h

18h

19h

1

2

3

4

5

6

7

Behindthe plane

Behindthe plane

Shading loss: 1 %Shading loss: 5 %Shading loss: 10 %Shading loss: 20 %Shading loss: 40 %

Attenuation for diffuse: 1.000and albedo: 1.000

Page 3/412/11/12PVSYST V5.53


Grid-Connected System: Main results




Main simulation resultsSystem Production Produced Energy 1042 kWh/year Specific prod. 695 kWh/kWp/year

Performance Ratio PR 76.3 %

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec0

1

2

3

4

5

6

Norm

aliz

ed

Energ

y[k

Wh/k

Wp/d

ay]

Normalized productions (per installed kWp): Nominal power 1500 Wp

Yf : Produced useful energy (inverter output) 1.9 kWh/kWp/dayLs : System Loss (inverter, ...) 0.17 kWh/kWp/dayLc : Collection Loss (PV-array losses) 0.42 kWh/kWp/day

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec0.0

0.2

0.4

0.6

0.8

1.0

Perf

orm

ance

Ratio

PR

Performance Ratio PR

PR : Performance Ratio (Yf / Yr) : 0.763

JAM6-60 x 6 1.5 kwp SB1200

Balances and main results

GlobHor T Amb GlobInc GlobEff EArray E_Grid EffArrR EffSysR

kWh/m² °C kWh/m² kWh/m² kWh kWh % %

January 20.0 5.70 19.1 18.0 23.4 21.2 12.51 11.31

February 34.0 5.50 33.3 31.7 42.5 38.8 12.99 11.86

March 70.0 6.80 68.5 65.4 88.0 80.7 13.10 12.01

April 103.0 8.30 97.4 93.7 124.7 114.5 13.05 11.97

May 138.0 11.50 128.8 124.2 162.4 149.2 12.86 11.81

June 146.0 14.70 137.3 132.4 170.8 156.8 12.68 11.65

July 142.0 17.10 134.0 129.3 164.5 151.1 12.52 11.49

August 124.0 17.10 118.3 113.8 145.0 133.2 12.50 11.48

September 88.0 15.20 83.6 80.2 103.7 95.1 12.64 11.59

October 52.0 11.60 50.4 47.9 63.0 57.6 12.73 11.65

November 26.0 8.20 25.5 24.1 31.4 28.5 12.56 11.41

December 15.0 6.90 14.6 13.7 17.4 15.6 12.11 10.86

Year 958.0 10.75 910.8 874.4 1136.8 1042.3 12.72 11.66

Legends: GlobHor Horizontal global irradiation

T Amb Ambient Temperature

GlobInc Global incident in coll. plane

GlobEff Effective Global, corr. for IAM and shadings

EArray Effective energy at the output of the array

E_Grid Energy injected into grid

EffArrR Effic. Eout array / rough area

EffSysR Effic. Eout system / rough area

Page 4/412/11/12PVSYST V5.53


Grid-Connected System: Loss diagram




Loss diagram over the whole year

Horizontal global irradiation958 kWh/m²

-4.9% Global incident in coll. plane

-0.0% Near Shadings, "linear"

-4.0% IAM factor on global

Effective irradiance on collectors874 kWh/m² * 10 m² coll.

efficiency at STC = 15.29% PV conversion

Array nominal energy (at STC effic.)1312 kWh

-7.0% PV loss due to irradiance level

-2.6% PV loss due to temperature

-1.6% Module quality loss

-2.1% Module array mismatch loss

-0.6% Ohmic wiring loss

Array virtual energy at MPP1137 kWh

-8.3% Inverter Loss during operation (efficiency)

0.0% Inverter Loss over nominal inv. power

0.0% Inverter Loss due to power threshold

0.0% Inverter Loss over nominal inv. voltage

0.0% Inverter Loss due to voltage threshold

Available Energy at Inverter Output1042 kWh

Energy injected into grid1042 kWh

Page 1/412/11/12PVSYST V5.53

Susan Growcott1.5kwp LG250SICx6 SB1200 1059kwh

Grid-Connected System: Simulation parameters


Geographical Site London Country United Kingdom

Situation Latitude 51.4°N Longitude 0.0°ETime defined as Legal Time Time zone UT+0 Altitude 5 m

Albedo 0.20

Meteo data : London, Synthetic Hourly data


Simulation date 12/11/12 08h32

Simulation parameters

Collector Plane Orientation Tilt 30° Azimuth 90°

Horizon Free Horizon

Near Shadings Linear shadings

PV Array Characteristics

PV module Si-mono Model LG250S1CManufacturer LG Electronics Inc.

Number of PV modules In series 6 modules In parallel 1 stringsTotal number of PV modules Nb. modules 6 Unit Nom. Power 250 WpArray global power Nominal (STC) 1500 Wp At operating cond. 1333 Wp (50°C)Array operating characteristics (50°C) U mpp 164 V I mpp 8.2 ATotal area Module area 9.6 m²

Inverter Model Sunny Boy SB 1200Manufacturer SMA

Characteristics Operating Voltage 100-320 V Unit Nom. Power 1.20 kW AC

PV Array loss factorsThermal Loss factor Uc (const) 20.0 W/m²K Uv (wind) 0.0 W/m²K / m/s

=> Nominal Oper. Coll. Temp. (G=800 W/m², Tamb=20°C, Wind=1 m/s.) NOCT 56 °C

Wiring Ohmic Loss Global array res. 341 mOhm Loss Fraction 1.5 % at STCModule Quality Loss Loss Fraction 0.0 %Module Mismatch Losses Loss Fraction 2.0 % at MPPIncidence effect, ASHRAE parametrization IAM = 1 - bo (1/cos i - 1) bo Parameter 0.05

User's needs : Unlimited load (grid)

Page 2/412/11/12PVSYST V5.53


Grid-Connected System: Near shading definition



Main system parameters System type Grid-ConnectedNear Shadings Linear shadingsPV Field Orientation tilt 30° azimuth 90°PV modules Model LG250S1C Pnom 250 WpPV Array Nb. of modules 6 Pnom total 1500 WpInverter Model Sunny Boy SB 1200 Pnom 1200 W acUser's needs Unlimited load (grid)

Perspective of the PV-field and surrounding shading scene

West

South

Zenith

East

Sun

Iso-shadings diagram

-120 -90 -60 -30 0 30 60 90 120Azimuth [°]

0

15

30

45

60

75

90

Sun

heig

ht

[°]

Susan Growcott : New shading scene

Beam shading factor (linear calculation) : Iso-shadings curves

1: 22 june2: 22 may - 23 july3: 20 apr - 23 aug4: 20 mar - 23 sep5: 21 feb - 23 oct6: 19 jan - 22 nov7: 22 december

5h

6h

7h

8h

9h

10h

11h12h

13h

14h

15h

16h

17h

18h

19h

1

2

3

4

5

6

7

Behindthe plane

Behindthe plane

Shading loss: 1 %Shading loss: 5 %Shading loss: 10 %Shading loss: 20 %Shading loss: 40 %

Attenuation for diffuse: 1.000and albedo: 1.000

Page 3/412/11/12PVSYST V5.53


Grid-Connected System: Main results




Main simulation resultsSystem Production Produced Energy 1059 kWh/year Specific prod. 706 kWh/kWp/year

Performance Ratio PR 77.5 %

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec0

1

2

3

4

5

6

Norm

aliz

ed

Energ

y[k

Wh/k

Wp/d

ay]

Normalized productions (per installed kWp): Nominal power 1500 Wp

Yf : Produced useful energy (inverter output) 1.93 kWh/kWp/dayLs : System Loss (inverter, ...) 0.18 kWh/kWp/dayLc : Collection Loss (PV-array losses) 0.39 kWh/kWp/day

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec0.0

0.2

0.4

0.6

0.8

1.0

Perf

orm

ance

Ratio

PR

Performance Ratio PR

PR : Performance Ratio (Yf / Yr) : 0.775

JAM6-60 x 6 1.5 kwp SB1200

Balances and main results

GlobHor T Amb GlobInc GlobEff EArray E_Grid EffArrR EffSysR

kWh/m² °C kWh/m² kWh/m² kWh kWh % %

January 20.0 5.70 19.1 18.0 24.0 21.7 13.04 11.81

February 34.0 5.50 33.3 31.7 43.4 39.6 13.50 12.33

March 70.0 6.80 68.5 65.4 89.6 82.2 13.59 12.46

April 103.0 8.30 97.4 93.7 126.9 116.5 13.51 12.40

May 138.0 11.50 128.8 124.2 165.0 151.6 13.30 12.22

June 146.0 14.70 137.3 132.4 173.2 159.1 13.10 12.03

July 142.0 17.10 134.0 129.3 166.8 153.1 12.91 11.86

August 124.0 17.10 118.3 113.8 147.0 135.0 12.90 11.85

September 88.0 15.20 83.6 80.2 105.2 96.6 13.06 11.98

October 52.0 11.60 50.4 47.9 64.1 58.7 13.19 12.08

November 26.0 8.20 25.5 24.1 32.1 29.2 13.06 11.87

December 15.0 6.90 14.6 13.7 17.8 16.0 12.65 11.36

Year 958.0 10.75 910.8 874.4 1155.0 1059.2 13.16 12.07

Legends: GlobHor Horizontal global irradiation

T Amb Ambient Temperature

GlobInc Global incident in coll. plane

GlobEff Effective Global, corr. for IAM and shadings

EArray Effective energy at the output of the array

E_Grid Energy injected into grid

EffArrR Effic. Eout array / rough area

EffSysR Effic. Eout system / rough area

Page 4/412/11/12PVSYST V5.53


Grid-Connected System: Loss diagram




Loss diagram over the whole year

Horizontal global irradiation958 kWh/m²

-4.9% Global incident in coll. plane

-0.0% Near Shadings, "linear"

-4.0% IAM factor on global

Effective irradiance on collectors874 kWh/m² * 10 m² coll.

efficiency at STC = 15.71% PV conversion

Array nominal energy (at STC effic.)1324 kWh

-7.7% PV loss due to irradiance level

-2.8% PV loss due to temperature

-0.1% Module quality loss

-2.1% Module array mismatch loss

-0.6% Ohmic wiring loss

Array virtual energy at MPP1155 kWh

-8.3% Inverter Loss during operation (efficiency)

0.0% Inverter Loss over nominal inv. power

0.0% Inverter Loss due to power threshold

0.0% Inverter Loss over nominal inv. voltage

0.0% Inverter Loss due to voltage threshold

Available Energy at Inverter Output1059 kWh

Energy injected into grid1059 kWh

PV Incentive Comparison Calculator2.5 kw South facing

Template

Renewable Technology Photvoltaic

output rating 1.5

deemed output kw hours per year 1059

rate of tarrif or incentive 0.154

lifetime of tarrif 25

value of genration tarrif per year (43p per kw generated) 163.086

value of export tarrif (50% of total generated x 3p) 21.18

units saved per year ( 50% of total generated) 529.5

unit cost of input fuel 0.13

value of saving at fuel cost 12p electric 4p gas 68.835

gain per watt output 0.239

Total financial gain from technology per year 253.101

Cost of supply and installation

life time of tarrif 25

cost per year 0

cost per watt output 0

gain per watt output 0.239

nett gain 0.239

nett gain one year £253.10

nett gain life time of tarrif £6,327.53

Tarriffs are set to deliver an approximate rate of return of 5-8% for well sited installations

As the tarrifs are linked to inflation in nominal terms the rate of return could therefore beconsidered to be approximatly 7-10%

In the 2009 pre budget report the chancellor confirmed that households who use renewable technologyto generate electricity mainly for own use will not be subject to income tax on feed in tarrifs.

Department of Energy and Climate ChangeFebruary 2010

The performance of solar PV systems is impossible to predict with certainty due to the variabilityin the amount of solar radiation (sunlight) from location to location and from year to year. Thisestimate is based upon the Government's standard assessment procedure for energy rating ofbuildings (SAP) and is given as guidance only. It should not be considered as a guarantee ofperformance."

PV Incentive Comparison Calculator2.5 kw South facing

Template

SAP Calculation Appendix M

Electricity Produced by PV Modules = 0.8xkwpxSxZpv

S Annual solar irradiation from Table H2

Zpv Overshading Factor from Table H3

Table H2

Orientation of collector

Horizontal South SE/SW E/W NE/NW North

30 deg 1073 1027 913 785 730

45 deg 1054 997 854 686 640

60 deg 989 927 776 597 500

vertical 746 705 582 440 371

Overshading Factor

Overshading percent of sky blocked by obstacles Overshading FactorHeavy greater 80% 0.5Significant 60-80% 0.65Modest 20-60% 0.8None or very little less than 20% 1.0

SAP Calculation 0.8*kwp*S*ZsKWP of array 1.5

Department of Energy and Climate Change S solar irradiation 913Shading factor 1Annual SAP estimated output 1095.6

The performance of solar PV systems is impossible to predict with certainty due to the variabilityin the amount of solar radiation (sunlight) from location to location and from year to year. Thisestimate is based upon the Government's standard assessment procedure for energy rating ofbuildings (SAP) and is given as guidance only. It should not be considered as a guarantee ofperformance."

Comments by previous customers

An excellent service and an excellent product. Professional and objective advice from the start to thecompletion of our engagement plus an on-going support when required.Physical works carried out quickly clearly and safely. Solar panels are technically great and look marvellousdue to the advice I received the maximum amount of ‘from solar panelI’d thoroughly recommend this company and would have them back to work for me again without a secondthought.Huge apologies for the delay! Our panels are great

Roan Willmore BSc (hons) Environmental ScienceEnvironmental and Sustainability ManagerSE19

Thanks for helping out where others couldn’t. It’s a relief to find someone who understands the complexity ofmodern home energy systems and is able and willing to work out best solution for every site.Will AndersonSW2

Installation was completed very helpful and efficient within a couple of days, and my solar panels were up andrunning straight away. Thank you. Your service is brilliantCharmian KennerSW2

Complete Plumbing and Heating Service Ltd played a major part as a sub-contractor. Their standard of workwas very good and included the installation of the Solar and Photo Voltaic panels with related pipework andequipment as well as the more general plumbing work.

The project was completed very satisfactorily within budget and with the submission of a reference manuallisting the work done. On completion the Company provided a briefing explaining the system and the controlmethodology. We were very pleased with the quality work and helpfulness of all involved.

Peter CobleySW4

We asked three companies to provide us with an estimate to install PV panels, CPHS was not only the mostthorough of the three in terms of survey they undertook but they also came up with the most cost effectiveproposal. The installation went pretty smoothly and the system works well.

Richard SeagerManagement ConsultantSE22

Very Happy. Job done professionally. Very high standard of workmanship. Cooperative team of installers.

Found them highly experienced in the field of solar and underfloor heating. I would highly recommend this

company without any doubt. Pleasure to do business with Nick Cotton.

Milan Shah

HA2

Documents

Mrs susan Grocott PV Quotation