Proposal document for: Solar PV Installation
Susan Grocott 22 The Quadrant South Wimbledon SW20 8SP 19.10.12
QUOTATION Mrs Susan Grocott 22 The Quadrant South Wimbledon SW20 8SP
Quote No.
Page 1 of 4
Date 19.10.12
Dear Mrs Grocott, Please find below my quotation for the installation of 1.5 kwpeak comprising 6 JAY solar JKAM6-60 250 watt panels mounted on one West facing roof.
I have simulated the returns for each proposal using both the Standard Assessment Procedure laid out in the mcs certification guidelines and also with the aid of dedicated specialist analytical software created by the photovoltaic department of the University of Geneva PV Syst. I have attached the simulations and the calculations for the financial returns. I have summarised the results for your convenience in the table on page 3. There is almost no shading compromise on the system. Please be advised that from April 1 on order to qualify for the feed in tariff the property will need to demonstrate an energy efficiency level of D or above via an energy performance certificate. Complete Plumbing 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 loads required for the pv system . This survey can be provided by your own structural engineer. If oyu require us to carry out and provide the survey we will be happy to make the necessary arrangements . However for this the roof 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
Mrs Susan Grocrott 22 The Quadrant South Wimbledon SW20 8SP
Quote No.
ITEM
DETAIL
Page 2 of 4
Date 19.10.12
COST £
Item 1 To install but not to supply 6 of JAY Solar JAM6-60 250 watts solar modules on one west facing roof. To allow for working with your own building contractor to remove and replace tiles as required For the penetration of the roof surface for the passage of pipes and cables and for the installation but not supply of appropriate flashings. (These estimates do not allow for the provision of safe high level access to be provided by your own contractor) To allow for the installation of solar pv inverters isolators cables and materials including the supply of 4mm twin and earth cable and to allow for connection to the existing consumer unit providing the consumer unit has a spare fuse-way suitable for the connection of the solar system. The cable from the consumer unit to be run by your own contractor. To allow for the carrying out of all electrical installation tests and for the testing and commissioning of the solar pv array including open circuit voltage and closed circuit current tests depending on the insolation rate at the time of commissioning. £3672.07 + vat
To make available all test reports and test commissioning certificates. For additional works outside the scope of this quotation or for variations to the agreed works an hourly rate of £45 per hour plus vat will apply as per our terms and conditions attached Item 2
As above but to supply LG250 SIC black frame modules
£430+ vat additional charge
Energy Performance Assessment ( if required )
£65.00 + vat
Item 3
Labour, parts, materials
Item 1 £3672.07 +VAT @ 5%
£183.61
TOTAL
£3855.68
Mrs Susan Grocott 22 The Quadrant South Wimbledon SW20 8SP
Quote No. 3
Page 3 of 4
Date 19.10.12
Size of System
No of Panels
Calculator
Annual predicted output
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 unit generated 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 half the 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.
Quote No. 3
Page 4 of 4
Date 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 as to be sufficient to support the installation of your solar panels. Our quotation will not normally allow for a structural survey of your 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 our professional responsibility to ensure that the roof is not compromised in any way by the installation of the solar panels themselves. Should at the time of installation our engineers become concerned about the state of the roof or the roof timbers we will bring our 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 be unsuitable for the installation of the panels or work required to increase the load bearing capacity of the roof be uneconomic a deduction of ÂŁ350 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 materials supplied. On receipt of payment in full Complete Plumbing will issue within 48 hours issue a mcs certificate and record the installation on the OFGEM database. The owner of the system will send the mcs certificate to the electricity supplier and from that 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 will be 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 planning permission is normally only required for listed buildings or areas of outstanding natural beauty. However in some areas planning permission may be required for flat roof installations. We will not make planning enquiries unless specifically requested to do so. Should you wish us to make such enquiries Please inform us in writing. Charges may apply.
PVSYST V5.53
12/11/12 Page 1/4 Susan Growcott 1.5 kwp JAM6-60 x 6 SB1200 inverter 1042kwh
Grid-Connected System: Simulation parameters Project :
Susan Growcott
Geographical Site
London Latitude Legal Time Albedo
Situation Time defined as
Country 51.4°N Time zone UT+0 0.20
Meteo data :
London, Synthetic Hourly data
Simulation variant :
JAM6-60 x 6 1.5 kwp SB1200 Simulation date
Longitude Altitude
United Kingdom 0.0°E 5m
12/11/12 08h30
Simulation parameters Tilt
Collector Plane Orientation
30°
Azimuth
90°
Free Horizon
Horizon
Linear shadings
Near Shadings PV Array Characteristics PV module
Si-mono
Number of PV modules Total number of PV modules Array global power Array operating characteristics (50°C) Total area Inverter Characteristics
Model Manufacturer In series Nb. modules Nominal (STC) U mpp Module area
JAM6-60-250/Si JA Solar 6 modules In parallel 6 Unit Nom. Power At operating cond. 1500 Wp 167 V I mpp Cell area 9.8 m²
1 strings 250 Wp 1332 Wp (50°C) 8.0 A 8.5 m²
Model Manufacturer Operating Voltage
Sunny Boy SB 1200 SMA 100-320 V Unit Nom. Power
1.20 kW AC
PV Array loss factors Thermal Loss factor Uc (const) 20.0 W/m²K => Nominal Oper. Coll. Temp. (G=800 W/m², Tamb=20°C, Wind=1 m/s.) Wiring Ohmic Loss Global array res. Module Quality Loss Module Mismatch Losses Incidence effect, ASHRAE parametrization IAM =
User's needs :
Unlimited load (grid)
351 mOhm
1 - bo (1/cos i - 1)
Uv (wind) NOCT Loss Fraction Loss Fraction Loss Fraction bo Parameter
0.0 W/m²K / m/s 56 °C 1.5 % at STC 1.5 % 2.0 % at MPP 0.05
PVSYST V5.53
12/11/12 Page 2/4 Susan Growcott 1.5 kwp JAM6-60 x 6 SB1200 inverter 1042kwh
Grid-Connected System: Near shading definition Project :
Susan Growcott
Simulation variant :
JAM6-60 x 6 1.5 kwp SB1200 System type Linear shadings tilt Model Nb. of modules Model Unlimited load (grid)
Main system parameters Near Shadings PV Field Orientation PV modules PV Array Inverter User's needs
Grid-Connected 30째 JAM6-60-250/Si 6 Sunny Boy SB 1200
azimuth Pnom Pnom total Pnom
90째 250 Wp 1500 Wp 1200 W ac
Perspective of the PV-field and surrounding shading scene Zenith
Sun
East
West
South
Iso-shadings diagram Susan Growcott : New shading scene Beam shading factor (linear calculation) : Iso-shadings curves
90
Shading loss: 1 % Shading loss: 5 % Shading loss: 10 % Shading loss: 20 % Shading loss: 40 %
Attenuation for diffuse: 1.000 and albedo: 1.000
1: 22 june 2: 22 may - 23 july 3: 20 apr - 23 aug 4: 20 mar - 23 sep 5: 21 feb - 23 oct 6: 19 jan - 22 nov 7: 22 december
75
11h
60
12h 1 2
13h 14h
Sun height [째]
10h 3
15h
9h 45
30
16h
4
8h
17h
7h
5
6h
18h
6 7
15
19h
5h Behind the plane 0 -120
-90
-60
-30
Behind the plane 0 Azimuth [째]
30
60
90
120
PVSYST V5.53
12/11/12 Page 3/4 Susan Growcott 1.5 kwp JAM6-60 x 6 SB1200 inverter 1042kwh
Grid-Connected System: Main results Project :
Susan Growcott
Simulation variant :
JAM6-60 x 6 1.5 kwp SB1200 System type Linear shadings tilt Model Nb. of modules Model Unlimited load (grid)
Main system parameters Near Shadings PV Field Orientation PV modules PV Array Inverter User's needs Main simulation results System Production
Produced Energy Performance Ratio PR
Grid-Connected 30° JAM6-60-250/Si 6 Sunny Boy SB 1200
azimuth Pnom Pnom total Pnom
Specific prod.
1042 kWh/year 76.3 %
Normalized productions (per installed kWp): Nominal power 1500 Wp
90° 250 Wp 1500 Wp 1200 W ac
695 kWh/kWp/year
Performance Ratio PR
6
1.0
PR : Performance Ratio (Yf / Yr) : 0.763
Lc : Collection Loss (PV-array losses) 0.42 kWh/kWp/day Ls : System Loss (inverter, ...) 0.17 kWh/kWp/day Yf : Produced useful energy (inverter output) 1.9 kWh/kWp/day 5
4 Performance Ratio PR
Normalized Energy [kWh/kWp/day]
0.8
3
0.6
0.4
2
0.2 1
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
0.0
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
JAM6-60 x 6 1.5 kwp SB1200 Balances and main results GlobHor
T Amb
GlobInc
GlobEff
EArray
E_Grid
EffArrR
kWh/m²
°C
kWh/m²
kWh/m²
kWh
kWh
%
EffSysR %
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
EArray
Effective energy at the output of the array
T Amb
Ambient Temperature
E_Grid
Energy injected into grid
GlobInc
Global incident in coll. plane
EffArrR
Effic. Eout array / rough area
GlobEff
Effective Global, corr. for IAM and shadings
EffSysR
Effic. Eout system / rough area
Nov
Dec
PVSYST V5.53
12/11/12 Page 4/4 Susan Growcott 1.5 kwp JAM6-60 x 6 SB1200 inverter 1042kwh
Grid-Connected System: Loss diagram Project :
Susan Growcott
Simulation variant :
JAM6-60 x 6 1.5 kwp SB1200
Main system parameters Near Shadings PV Field Orientation PV modules PV Array Inverter User's needs
System type Linear shadings tilt Model Nb. of modules Model Unlimited load (grid)
Grid-Connected 30° JAM6-60-250/Si 6 Sunny Boy SB 1200
azimuth Pnom Pnom total Pnom
90° 250 Wp 1500 Wp 1200 W ac
Loss diagram over the whole year
958 kWh/m²
Horizontal global irradiation -4.9% Global incident in coll. plane -0.0%
Near Shadings, "linear"
-4.0%
IAM factor on global
874 kWh/m² * 10 m² coll.
Effective irradiance on collectors
efficiency at STC = 15.29%
PV conversion
1312 kWh
Array nominal energy (at STC effic.) -7.0% -2.6% -1.6% -2.1%
PV loss due to irradiance level PV loss due to temperature Module quality loss Module array mismatch loss
-0.6%
Ohmic wiring loss Array virtual energy at MPP
-8.3%
Inverter Loss during operation (efficiency)
1137 kWh
0.0% 0.0% 0.0% 0.0% 1042 kWh
Inverter Loss over nominal inv. power Inverter Loss due to power threshold Inverter Loss over nominal inv. voltage Inverter Loss due to voltage threshold Available Energy at Inverter Output
1042 kWh
Energy injected into grid
PVSYST V5.53
12/11/12 Page 1/4 Susan Growcott 1.5kwp LG250SICx6 SB1200 1059kwh
Grid-Connected System: Simulation parameters Project :
Susan Growcott
Geographical Site
London Latitude Legal Time Albedo
Situation Time defined as
Country 51.4°N Time zone UT+0 0.20
Meteo data :
London, Synthetic Hourly data
Simulation variant :
JAM6-60 x 6 1.5 kwp SB1200 Simulation date
Longitude Altitude
United Kingdom 0.0°E 5m
12/11/12 08h32
Simulation parameters Tilt
Collector Plane Orientation
30°
Azimuth
90°
Free Horizon
Horizon
Linear shadings
Near Shadings PV Array Characteristics PV module
Si-mono
Number of PV modules Total number of PV modules Array global power Array operating characteristics (50°C) Total area Inverter Characteristics
Model Manufacturer In series Nb. modules Nominal (STC) U mpp Module area
LG250S1C LG Electronics Inc. 6 modules In parallel 6 Unit Nom. Power At operating cond. 1500 Wp 164 V I mpp 9.6 m²
Model Manufacturer Operating Voltage
Sunny Boy SB 1200 SMA 100-320 V Unit Nom. Power
PV Array loss factors Thermal Loss factor Uc (const) 20.0 W/m²K => Nominal Oper. Coll. Temp. (G=800 W/m², Tamb=20°C, Wind=1 m/s.) Wiring Ohmic Loss Global array res. Module Quality Loss Module Mismatch Losses Incidence effect, ASHRAE parametrization IAM =
User's needs :
Unlimited load (grid)
341 mOhm
1 - bo (1/cos i - 1)
Uv (wind) NOCT Loss Fraction Loss Fraction Loss Fraction bo Parameter
1 strings 250 Wp 1333 Wp (50°C) 8.2 A
1.20 kW AC
0.0 W/m²K / m/s 56 °C 1.5 % at STC 0.0 % 2.0 % at MPP 0.05
PVSYST V5.53
12/11/12 Page 2/4 Susan Growcott 1.5kwp LG250SICx6 SB1200 1059kwh
Grid-Connected System: Near shading definition Project :
Susan Growcott
Simulation variant :
JAM6-60 x 6 1.5 kwp SB1200 System type Linear shadings tilt Model Nb. of modules Model Unlimited load (grid)
Main system parameters Near Shadings PV Field Orientation PV modules PV Array Inverter User's needs
Grid-Connected 30째 LG250S1C 6 Sunny Boy SB 1200
azimuth Pnom Pnom total Pnom
90째 250 Wp 1500 Wp 1200 W ac
Perspective of the PV-field and surrounding shading scene Zenith
Sun
East
West
South
Iso-shadings diagram Susan Growcott : New shading scene Beam shading factor (linear calculation) : Iso-shadings curves
90
Shading loss: 1 % Shading loss: 5 % Shading loss: 10 % Shading loss: 20 % Shading loss: 40 %
Attenuation for diffuse: 1.000 and albedo: 1.000
1: 22 june 2: 22 may - 23 july 3: 20 apr - 23 aug 4: 20 mar - 23 sep 5: 21 feb - 23 oct 6: 19 jan - 22 nov 7: 22 december
75
11h
60
12h 1 2
13h 14h
Sun height [째]
10h 3
15h
9h 45
30
16h
4
8h
17h
7h
5
6h
18h
6 7
15
19h
5h Behind the plane 0 -120
-90
-60
-30
Behind the plane 0 Azimuth [째]
30
60
90
120
PVSYST V5.53
12/11/12 Page 3/4 Susan Growcott 1.5kwp LG250SICx6 SB1200 1059kwh
Grid-Connected System: Main results Project :
Susan Growcott
Simulation variant :
JAM6-60 x 6 1.5 kwp SB1200 System type Linear shadings tilt Model Nb. of modules Model Unlimited load (grid)
Main system parameters Near Shadings PV Field Orientation PV modules PV Array Inverter User's needs Main simulation results System Production
Produced Energy Performance Ratio PR
Grid-Connected 30° LG250S1C 6 Sunny Boy SB 1200
azimuth Pnom Pnom total Pnom
Specific prod.
1059 kWh/year 77.5 %
Normalized productions (per installed kWp): Nominal power 1500 Wp
90° 250 Wp 1500 Wp 1200 W ac
706 kWh/kWp/year
Performance Ratio PR
6
1.0
PR : Performance Ratio (Yf / Yr) : 0.775
Lc : Collection Loss (PV-array losses) 0.39 kWh/kWp/day Ls : System Loss (inverter, ...) 0.18 kWh/kWp/day Yf : Produced useful energy (inverter output) 1.93 kWh/kWp/day 5
4 Performance Ratio PR
Normalized Energy [kWh/kWp/day]
0.8
3
0.6
0.4
2
0.2 1
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
0.0
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
JAM6-60 x 6 1.5 kwp SB1200 Balances and main results GlobHor
T Amb
GlobInc
GlobEff
EArray
E_Grid
EffArrR
kWh/m²
°C
kWh/m²
kWh/m²
kWh
kWh
%
EffSysR %
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
EArray
Effective energy at the output of the array
T Amb
Ambient Temperature
E_Grid
Energy injected into grid
GlobInc
Global incident in coll. plane
EffArrR
Effic. Eout array / rough area
GlobEff
Effective Global, corr. for IAM and shadings
EffSysR
Effic. Eout system / rough area
Nov
Dec
PVSYST V5.53
12/11/12 Page 4/4 Susan Growcott 1.5kwp LG250SICx6 SB1200 1059kwh
Grid-Connected System: Loss diagram Project :
Susan Growcott
Simulation variant :
JAM6-60 x 6 1.5 kwp SB1200
Main system parameters Near Shadings PV Field Orientation PV modules PV Array Inverter User's needs
System type Linear shadings tilt Model Nb. of modules Model Unlimited load (grid)
Grid-Connected 30° LG250S1C 6 Sunny Boy SB 1200
azimuth Pnom Pnom total Pnom
90° 250 Wp 1500 Wp 1200 W ac
Loss diagram over the whole year
958 kWh/m²
Horizontal global irradiation -4.9% Global incident in coll. plane -0.0%
Near Shadings, "linear"
-4.0%
IAM factor on global
874 kWh/m² * 10 m² coll.
Effective irradiance on collectors
efficiency at STC = 15.71%
PV conversion
1324 kWh
Array nominal energy (at STC effic.) -7.7% -2.8%
PV loss due to irradiance level 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 MPP
-8.3%
Inverter Loss during operation (efficiency)
1155 kWh
0.0% 0.0% 0.0% 0.0% 1059 kWh
Inverter Loss over nominal inv. power Inverter Loss due to power threshold Inverter Loss over nominal inv. voltage Inverter Loss due to voltage threshold Available Energy at Inverter Output
1059 kWh
Energy injected into grid
PV Incentive Comparison Calculator 2.5 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
ÂŁ253.10
nett gain life time of tarrif
ÂŁ6,327.53
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 be considered to be approximatly 7-10% In the 2009 pre budget report the chancellor confirmed that households who use renewable technology to generate electricity mainly for own use will not be subject to income tax on feed in tarrifs. Department of Energy and Climate Change February 2010
The performance of solar PV systems is impossible to predict with certainty due to the variability in the amount of solar radiation (sunlight) from location to location and from year to year. This estimate is based upon the Government's standard assessment procedure for energy rating of buildings (SAP) and is given as guidance only. It should not be considered as a guarantee of performance."
PV Incentive Comparison Calculator 2.5 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
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
NE/NW
North
Overshading Factor Overshading Heavy Significant Modest None or very little
nergy and Climate Change
percent of sky blocked by obstacles greater 80% 60-80% 20-60% less than 20%
SAP Calculation KWP of array S solar irradiation Shading factor Annual SAP estimated output
Overshading Factor 0.5 0.65 0.8 1.0
0.8*kwp*S*Zs 1.5 913 1 1095.6
The performance of solar PV systems is impossible to predict with certainty due to the variability in the amount of solar radiation (sunlight) from location to location and from year to year. This estimate is based upon the Government's standard assessment procedure for energy rating of buildings (SAP) and is given as guidance only. It should not be considered as a guarantee of performance."
Comments by previous customers
An excellent service and an excellent product. Professional and objective advice from the start to the completion 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 marvellous due to the advice I received the maximum amount of ‘from solar panel I’d thoroughly recommend this company and would have them back to work for me again without a second thought. Huge apologies for the delay! Our panels are great Roan Willmore BSc (hons) Environmental Science Environmental and Sustainability Manager SE19
Thanks for helping out where others couldn’t. It’s a relief to find someone who understands the complexity of modern home energy systems and is able and willing to work out best solution for every site. Will Anderson SW2 Installation was completed very helpful and efficient within a couple of days, and my solar panels were up and running straight away. Thank you. Your service is brilliant Charmian Kenner SW2 Complete Plumbing and Heating Service Ltd played a major part as a sub-contractor. Their standard of work was very good and included the installation of the Solar and Photo Voltaic panels with related pipework and equipment as well as the more general plumbing work. The project was completed very satisfactorily within budget and with the submission of a reference manual listing the work done. On completion the Company provided a briefing explaining the system and the control methodology. We were very pleased with the quality work and helpfulness of all involved. Peter Cobley SW4 We asked three companies to provide us with an estimate to install PV panels, CPHS was not only the most thorough of the three in terms of survey they undertook but they also came up with the most cost effective proposal. The installation went pretty smoothly and the system works well. Richard Seager Management Consultant SE22
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