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Feed-In Tariff Calculator

Solar PV (Photovoltaic)

Our calculations are unbiased representations of potential payback from Solar PV. To firm up these figures you should arrange a quote from an MCS certified company, this is a requirement of the Feed-in Tariff.

For free, we can contact up to 4 certified companies on your behalf to arrange a quote.

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  • Calc by Roof
  • Calc by System Size (kWp)
  • Calc by System Price

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Calc by System Size (kWp)

Please specify the size of system:

Calc by System Price

Please tell us about your priced system:

Our Assumptions:
  • My daytime electricity rate: £ per kWh (inc VAT)
  • Use Standard Export Tariff (4.64p/kWh in July 2013) ... OR ...
    My energy supplier has agreed to buy back at £ per kWh
  • % of the energy generated will be used in my home
  • I will have an export meter: 
  • I want to assess the benefits over a year period
  • Assume RPI of % and annual energy price inflation of %
  • The roof angle is ° (or panel mounting angle if standalone)
  • Assume panel degradation to % of year 1 output after 30 years
  • Assume inverter lifetime of years
  • Assume cable/inverter system losses of % of output
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Based on the details above we estimate your annual income and overall investment payback to be as follows:

Solar PV (Photovoltaic) Feed-In Tariff Summary

Based on the details provided we estimate your annual income and overall investment payback to be as follows:

Total Profit Over 20 Years

£31.35

0.02% per year

(0.02% AER)

Investment in 5.06kWp System: *
£7,967.04
First Year
Income from Feed-In Generation Tariff @ 0.00p/kWh:
£0.00
 
Income from exporting energy through the Export Tariff @ 0.00p/kWh:
£0.00
 
Electricity Saving:
£304.18
 
Total Benefit:
£304.18
Payback Time:
 
19y 11m
Total Profit Over 20 years:
£31.35

Total Profit Over 20 Years

£31.35

0.02% per year

(0.02% AER)

You could save even more with a solar storage battery Learn more here

* These estimates are calculated by comparing a range of MCS certified panels to determine the best possible payback.
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kWh Generation per month

£ Payback over 20 years

Calculations include solar radiation and system losses in PE2 8GA due to Temperature 6.7% and Angular Reflectance 3.1%, as well as other losses (e.g. Cables, Inverter) of 15%. You can change the Inverter/Cable loss and other assumptions in the calculator box above if you wish.

These are the details we used to calculate your payback and some alternative scenarios:

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Greatest 20yr Payback:

System
Power
Est Outlay
Feed-In & Savings
Pay back time
Profit over 20yrs
More
System 22 x Sharp 230W Poly
Power 5.06kWp
Est Outlay £7,967.04
Feed-In & Savings £304.18pa
Pay back time 19y 11m
Profit over 20yrs £31.35
More Detailed calc »

Annual breakdown for a 5.06kWp system of 22 x 230Wp panels
Facing Ssw @ 35° in PE2 8GA permits generation of 4,234kWh/pa

Year
FiT Generation
Export Income
In-house savings
Balance
Year 1
FiT Generation 4,234kWh x 0.00p = £0.00
Export Income 2,117kWh x 0.00p = £0.00
In-house savings 2,117kWh x 14.37p = £304.18
Balance £-7,662.86
Year 2
FiT Generation 4,233kWh x 0.00p = £0.00
Export Income 2,117kWh x 0.00p = £0.00
In-house savings 2,117kWh x 15.09p = £319.37
Balance £-7,343.49
Year 3
FiT Generation 4,232kWh x 0.00p = £0.00
Export Income 2,116kWh x 0.00p = £0.00
In-house savings 2,116kWh x 15.84p = £335.26
Balance £-7,008.24
Year 4
FiT Generation 4,230kWh x 0.00p = £0.00
Export Income 2,115kWh x 0.00p = £0.00
In-house savings 2,115kWh x 16.64p = £351.84
Balance £-6,656.39
Year 5
FiT Generation 4,227kWh x 0.00p = £0.00
Export Income 2,113kWh x 0.00p = £0.00
In-house savings 2,113kWh x 17.47p = £369.14
Balance £-6,287.25
Year 6
FiT Generation 4,222kWh x 0.00p = £0.00
Export Income 2,111kWh x 0.00p = £0.00
In-house savings 2,111kWh x 18.34p = £387.16
Balance £-5,900.09
Year 7
FiT Generation 4,216kWh x 0.00p = £0.00
Export Income 2,108kWh x 0.00p = £0.00
In-house savings 2,108kWh x 19.26p = £405.91
Balance £-5,494.17
Year 8
FiT Generation 4,208kWh x 0.00p = £0.00
Export Income 2,104kWh x 0.00p = £0.00
In-house savings 2,104kWh x 20.22p = £425.41
Balance £-5,068.76
Year 9
FiT Generation 4,198kWh x 0.00p = £0.00
Export Income 2,099kWh x 0.00p = £0.00
In-house savings 2,099kWh x 21.23p = £445.64
Balance £-4,623.12
Year 10
FiT Generation 4,186kWh x 0.00p = £0.00
Export Income 2,093kWh x 0.00p = £0.00
In-house savings 2,093kWh x 22.29p = £466.63
Balance £-4,156.49
Year 11
FiT Generation 4,173kWh x 0.00p = £0.00
Export Income 2,086kWh x 0.00p = £0.00
In-house savings 2,086kWh x 23.41p = £488.38
Balance £-3,668.11
Year 12
FiT Generation 4,157kWh x 0.00p = £0.00
Export Income 2,079kWh x 0.00p = £0.00
In-house savings 2,079kWh x 24.58p = £510.88
Balance £-3,157.23
Year 13
FiT Generation 4,140kWh x 0.00p = £0.00
Export Income 2,070kWh x 0.00p = £0.00
In-house savings 2,070kWh x 25.81p = £534.14
Balance £-2,623.08
Year 14
FiT Generation 4,120kWh x 0.00p = £0.00
Export Income 2,060kWh x 0.00p = £0.00
In-house savings 2,060kWh x 27.10p = £558.16
Balance £-2,064.93
Year 15
FiT Generation 4,098kWh x 0.00p = £0.00
Export Income 2,049kWh x 0.00p = £0.00
In-house savings 2,049kWh x 28.45p = £582.91
Balance £-1,482.01
Year 16
FiT Generation 4,073kWh x 0.00p = £0.00
Export Income 2,037kWh x 0.00p = £0.00
In-house savings 2,037kWh x 29.87p = £608.40
Balance £-2,671.12
Year 17
FiT Generation 4,046kWh x 0.00p = £0.00
Export Income 2,023kWh x 0.00p = £0.00
In-house savings 2,023kWh x 31.37p = £634.61
Balance £-2,036.51
Year 18
FiT Generation 4,017kWh x 0.00p = £0.00
Export Income 2,008kWh x 0.00p = £0.00
In-house savings 2,008kWh x 32.94p = £661.51
Balance £-1,375.00
Year 19
FiT Generation 3,985kWh x 0.00p = £0.00
Export Income 1,993kWh x 0.00p = £0.00
In-house savings 1,993kWh x 34.58p = £689.07
Balance £-685.93
Year 20
FiT Generation 3,951kWh x 0.00p = £0.00
Export Income 1,975kWh x 0.00p = £0.00
In-house savings 1,975kWh x 36.31p = £717.28
Balance £31.35
System 22 x Sharp 235W Poly
Power 5.17kWp
Est Outlay £8,136.45
Feed-In & Savings £310.79pa
Pay back time 19y 11m
Profit over 20yrs £35.81
More Detailed calc »

Annual breakdown for a 5.17kWp system of 22 x 235Wp panels
Facing Ssw @ 35° in PE2 8GA permits generation of 4,326kWh/pa

Year
FiT Generation
Export Income
In-house savings
Balance
Year 1
FiT Generation 4,326kWh x 0.00p = £0.00
Export Income 2,163kWh x 0.00p = £0.00
In-house savings 2,163kWh x 14.37p = £310.79
Balance £-7,825.66
Year 2
FiT Generation 4,325kWh x 0.00p = £0.00
Export Income 2,163kWh x 0.00p = £0.00
In-house savings 2,163kWh x 15.09p = £326.31
Balance £-7,499.35
Year 3
FiT Generation 4,324kWh x 0.00p = £0.00
Export Income 2,162kWh x 0.00p = £0.00
In-house savings 2,162kWh x 15.84p = £342.54
Balance £-7,156.81
Year 4
FiT Generation 4,322kWh x 0.00p = £0.00
Export Income 2,161kWh x 0.00p = £0.00
In-house savings 2,161kWh x 16.64p = £359.49
Balance £-6,797.32
Year 5
FiT Generation 4,319kWh x 0.00p = £0.00
Export Income 2,159kWh x 0.00p = £0.00
In-house savings 2,159kWh x 17.47p = £377.17
Balance £-6,420.15
Year 6
FiT Generation 4,314kWh x 0.00p = £0.00
Export Income 2,157kWh x 0.00p = £0.00
In-house savings 2,157kWh x 18.34p = £395.58
Balance £-6,024.57
Year 7
FiT Generation 4,307kWh x 0.00p = £0.00
Export Income 2,154kWh x 0.00p = £0.00
In-house savings 2,154kWh x 19.26p = £414.74
Balance £-5,609.83
Year 8
FiT Generation 4,299kWh x 0.00p = £0.00
Export Income 2,150kWh x 0.00p = £0.00
In-house savings 2,150kWh x 20.22p = £434.65
Balance £-5,175.17
Year 9
FiT Generation 4,289kWh x 0.00p = £0.00
Export Income 2,145kWh x 0.00p = £0.00
In-house savings 2,145kWh x 21.23p = £455.33
Balance £-4,719.84
Year 10
FiT Generation 4,277kWh x 0.00p = £0.00
Export Income 2,139kWh x 0.00p = £0.00
In-house savings 2,139kWh x 22.29p = £476.78
Balance £-4,243.07
Year 11
FiT Generation 4,264kWh x 0.00p = £0.00
Export Income 2,132kWh x 0.00p = £0.00
In-house savings 2,132kWh x 23.41p = £499.00
Balance £-3,744.07
Year 12
FiT Generation 4,248kWh x 0.00p = £0.00
Export Income 2,124kWh x 0.00p = £0.00
In-house savings 2,124kWh x 24.58p = £521.99
Balance £-3,222.08
Year 13
FiT Generation 4,230kWh x 0.00p = £0.00
Export Income 2,115kWh x 0.00p = £0.00
In-house savings 2,115kWh x 25.81p = £545.76
Balance £-2,676.33
Year 14
FiT Generation 4,209kWh x 0.00p = £0.00
Export Income 2,105kWh x 0.00p = £0.00
In-house savings 2,105kWh x 27.10p = £570.29
Balance £-2,106.03
Year 15
FiT Generation 4,187kWh x 0.00p = £0.00
Export Income 2,093kWh x 0.00p = £0.00
In-house savings 2,093kWh x 28.45p = £595.59
Balance £-1,510.45
Year 16
FiT Generation 4,162kWh x 0.00p = £0.00
Export Income 2,081kWh x 0.00p = £0.00
In-house savings 2,081kWh x 29.87p = £621.63
Balance £-2,725.40
Year 17
FiT Generation 4,134kWh x 0.00p = £0.00
Export Income 2,067kWh x 0.00p = £0.00
In-house savings 2,067kWh x 31.37p = £648.40
Balance £-2,077.00
Year 18
FiT Generation 4,104kWh x 0.00p = £0.00
Export Income 2,052kWh x 0.00p = £0.00
In-house savings 2,052kWh x 32.94p = £675.89
Balance £-1,401.11
Year 19
FiT Generation 4,072kWh x 0.00p = £0.00
Export Income 2,036kWh x 0.00p = £0.00
In-house savings 2,036kWh x 34.58p = £704.05
Balance £-697.06
Year 20
FiT Generation 4,036kWh x 0.00p = £0.00
Export Income 2,018kWh x 0.00p = £0.00
In-house savings 2,018kWh x 36.31p = £732.87
Balance £35.81
System 22 x Sharp 240W Poly
Power 5.28kWp
Est Outlay £8,307.26
Feed-In & Savings £317.40pa
Pay back time 19y 11m
Profit over 20yrs £38.89
More Detailed calc »

Annual breakdown for a 5.28kWp system of 22 x 240Wp panels
Facing Ssw @ 35° in PE2 8GA permits generation of 4,418kWh/pa

Year
FiT Generation
Export Income
In-house savings
Balance
Year 1
FiT Generation 4,418kWh x 0.00p = £0.00
Export Income 2,209kWh x 0.00p = £0.00
In-house savings 2,209kWh x 14.37p = £317.40
Balance £-7,989.85
Year 2
FiT Generation 4,417kWh x 0.00p = £0.00
Export Income 2,209kWh x 0.00p = £0.00
In-house savings 2,209kWh x 15.09p = £333.25
Balance £-7,656.60
Year 3
FiT Generation 4,416kWh x 0.00p = £0.00
Export Income 2,208kWh x 0.00p = £0.00
In-house savings 2,208kWh x 15.84p = £349.83
Balance £-7,306.77
Year 4
FiT Generation 4,414kWh x 0.00p = £0.00
Export Income 2,207kWh x 0.00p = £0.00
In-house savings 2,207kWh x 16.64p = £367.14
Balance £-6,939.62
Year 5
FiT Generation 4,411kWh x 0.00p = £0.00
Export Income 2,205kWh x 0.00p = £0.00
In-house savings 2,205kWh x 17.47p = £385.19
Balance £-6,554.43
Year 6
FiT Generation 4,406kWh x 0.00p = £0.00
Export Income 2,203kWh x 0.00p = £0.00
In-house savings 2,203kWh x 18.34p = £404.00
Balance £-6,150.43
Year 7
FiT Generation 4,399kWh x 0.00p = £0.00
Export Income 2,200kWh x 0.00p = £0.00
In-house savings 2,200kWh x 19.26p = £423.56
Balance £-5,726.87
Year 8
FiT Generation 4,391kWh x 0.00p = £0.00
Export Income 2,195kWh x 0.00p = £0.00
In-house savings 2,195kWh x 20.22p = £443.90
Balance £-5,282.97
Year 9
FiT Generation 4,381kWh x 0.00p = £0.00
Export Income 2,190kWh x 0.00p = £0.00
In-house savings 2,190kWh x 21.23p = £465.02
Balance £-4,817.95
Year 10
FiT Generation 4,368kWh x 0.00p = £0.00
Export Income 2,184kWh x 0.00p = £0.00
In-house savings 2,184kWh x 22.29p = £486.92
Balance £-4,331.03
Year 11
FiT Generation 4,354kWh x 0.00p = £0.00
Export Income 2,177kWh x 0.00p = £0.00
In-house savings 2,177kWh x 23.41p = £509.61
Balance £-3,821.42
Year 12
FiT Generation 4,338kWh x 0.00p = £0.00
Export Income 2,169kWh x 0.00p = £0.00
In-house savings 2,169kWh x 24.58p = £533.10
Balance £-3,288.32
Year 13
FiT Generation 4,320kWh x 0.00p = £0.00
Export Income 2,160kWh x 0.00p = £0.00
In-house savings 2,160kWh x 25.81p = £557.37
Balance £-2,730.95
Year 14
FiT Generation 4,299kWh x 0.00p = £0.00
Export Income 2,149kWh x 0.00p = £0.00
In-house savings 2,149kWh x 27.10p = £582.42
Balance £-2,148.53
Year 15
FiT Generation 4,276kWh x 0.00p = £0.00
Export Income 2,138kWh x 0.00p = £0.00
In-house savings 2,138kWh x 28.45p = £608.26
Balance £-1,540.27
Year 16
FiT Generation 4,250kWh x 0.00p = £0.00
Export Income 2,125kWh x 0.00p = £0.00
In-house savings 2,125kWh x 29.87p = £634.85
Balance £-2,781.08
Year 17
FiT Generation 4,222kWh x 0.00p = £0.00
Export Income 2,111kWh x 0.00p = £0.00
In-house savings 2,111kWh x 31.37p = £662.20
Balance £-2,118.88
Year 18
FiT Generation 4,192kWh x 0.00p = £0.00
Export Income 2,096kWh x 0.00p = £0.00
In-house savings 2,096kWh x 32.94p = £690.27
Balance £-1,428.61
Year 19
FiT Generation 4,158kWh x 0.00p = £0.00
Export Income 2,079kWh x 0.00p = £0.00
In-house savings 2,079kWh x 34.58p = £719.03
Balance £-709.57
Year 20
FiT Generation 4,122kWh x 0.00p = £0.00
Export Income 2,061kWh x 0.00p = £0.00
In-house savings 2,061kWh x 36.31p = £748.46
Balance £38.89

Earliest Investment Payback:

System
Power
Est Outlay
Feed-In & Savings
Pay back time
Profit over 20yrs
More
System 24 x Canadian Solar 250W Mono
Power 6.00kWp
Est Outlay £9,229.71
Feed-In & Savings £360.69pa
Pay back time 19y 8m
Profit over 20yrs £254.55
More Detailed calc »

Annual breakdown for a 6.00kWp system of 24 x 250Wp panels
Facing Ssw @ 35° in PE2 8GA permits generation of 5,020kWh/pa

Year
FiT Generation
Export Income
In-house savings
Balance
Year 1
FiT Generation 5,020kWh x 0.00p = £0.00
Export Income 2,510kWh x 0.00p = £0.00
In-house savings 2,510kWh x 14.37p = £360.69
Balance £-8,869.02
Year 2
FiT Generation 5,020kWh x 0.00p = £0.00
Export Income 2,510kWh x 0.00p = £0.00
In-house savings 2,510kWh x 15.09p = £378.70
Balance £-8,490.33
Year 3
FiT Generation 5,018kWh x 0.00p = £0.00
Export Income 2,509kWh x 0.00p = £0.00
In-house savings 2,509kWh x 15.84p = £397.54
Balance £-8,092.79
Year 4
FiT Generation 5,016kWh x 0.00p = £0.00
Export Income 2,508kWh x 0.00p = £0.00
In-house savings 2,508kWh x 16.64p = £417.21
Balance £-7,675.58
Year 5
FiT Generation 5,012kWh x 0.00p = £0.00
Export Income 2,506kWh x 0.00p = £0.00
In-house savings 2,506kWh x 17.47p = £437.72
Balance £-7,237.86
Year 6
FiT Generation 5,006kWh x 0.00p = £0.00
Export Income 2,503kWh x 0.00p = £0.00
In-house savings 2,503kWh x 18.34p = £459.09
Balance £-6,778.78
Year 7
FiT Generation 4,999kWh x 0.00p = £0.00
Export Income 2,499kWh x 0.00p = £0.00
In-house savings 2,499kWh x 19.26p = £481.32
Balance £-6,297.45
Year 8
FiT Generation 4,989kWh x 0.00p = £0.00
Export Income 2,495kWh x 0.00p = £0.00
In-house savings 2,495kWh x 20.22p = £504.43
Balance £-5,793.02
Year 9
FiT Generation 4,978kWh x 0.00p = £0.00
Export Income 2,489kWh x 0.00p = £0.00
In-house savings 2,489kWh x 21.23p = £528.43
Balance £-5,264.59
Year 10
FiT Generation 4,964kWh x 0.00p = £0.00
Export Income 2,482kWh x 0.00p = £0.00
In-house savings 2,482kWh x 22.29p = £553.32
Balance £-4,711.27
Year 11
FiT Generation 4,948kWh x 0.00p = £0.00
Export Income 2,474kWh x 0.00p = £0.00
In-house savings 2,474kWh x 23.41p = £579.11
Balance £-4,132.17
Year 12
FiT Generation 4,930kWh x 0.00p = £0.00
Export Income 2,465kWh x 0.00p = £0.00
In-house savings 2,465kWh x 24.58p = £605.79
Balance £-3,526.38
Year 13
FiT Generation 4,909kWh x 0.00p = £0.00
Export Income 2,454kWh x 0.00p = £0.00
In-house savings 2,454kWh x 25.81p = £633.37
Balance £-2,893.00
Year 14
FiT Generation 4,885kWh x 0.00p = £0.00
Export Income 2,443kWh x 0.00p = £0.00
In-house savings 2,443kWh x 27.10p = £661.85
Balance £-2,231.16
Year 15
FiT Generation 4,859kWh x 0.00p = £0.00
Export Income 2,429kWh x 0.00p = £0.00
In-house savings 2,429kWh x 28.45p = £691.20
Balance £-1,539.96
Year 16
FiT Generation 4,830kWh x 0.00p = £0.00
Export Income 2,415kWh x 0.00p = £0.00
In-house savings 2,415kWh x 29.87p = £721.43
Balance £-2,949.96
Year 17
FiT Generation 4,798kWh x 0.00p = £0.00
Export Income 2,399kWh x 0.00p = £0.00
In-house savings 2,399kWh x 31.37p = £752.50
Balance £-2,197.46
Year 18
FiT Generation 4,763kWh x 0.00p = £0.00
Export Income 2,382kWh x 0.00p = £0.00
In-house savings 2,382kWh x 32.94p = £784.40
Balance £-1,413.07
Year 19
FiT Generation 4,725kWh x 0.00p = £0.00
Export Income 2,363kWh x 0.00p = £0.00
In-house savings 2,363kWh x 34.58p = £817.08
Balance £-595.98
Year 20
FiT Generation 4,685kWh x 0.00p = £0.00
Export Income 2,342kWh x 0.00p = £0.00
In-house savings 2,342kWh x 36.31p = £850.53
Balance £254.55
System 22 x Sharp 240W Poly
Power 5.28kWp
Est Outlay £8,307.26
Feed-In & Savings £317.40pa
Pay back time 19y 11m
Profit over 20yrs £38.89
More Detailed calc »

Annual breakdown for a 5.28kWp system of 22 x 240Wp panels
Facing Ssw @ 35° in PE2 8GA permits generation of 4,418kWh/pa

Year
FiT Generation
Export Income
In-house savings
Balance
Year 1
FiT Generation 4,418kWh x 0.00p = £0.00
Export Income 2,209kWh x 0.00p = £0.00
In-house savings 2,209kWh x 14.37p = £317.40
Balance £-7,989.85
Year 2
FiT Generation 4,417kWh x 0.00p = £0.00
Export Income 2,209kWh x 0.00p = £0.00
In-house savings 2,209kWh x 15.09p = £333.25
Balance £-7,656.60
Year 3
FiT Generation 4,416kWh x 0.00p = £0.00
Export Income 2,208kWh x 0.00p = £0.00
In-house savings 2,208kWh x 15.84p = £349.83
Balance £-7,306.77
Year 4
FiT Generation 4,414kWh x 0.00p = £0.00
Export Income 2,207kWh x 0.00p = £0.00
In-house savings 2,207kWh x 16.64p = £367.14
Balance £-6,939.62
Year 5
FiT Generation 4,411kWh x 0.00p = £0.00
Export Income 2,205kWh x 0.00p = £0.00
In-house savings 2,205kWh x 17.47p = £385.19
Balance £-6,554.43
Year 6
FiT Generation 4,406kWh x 0.00p = £0.00
Export Income 2,203kWh x 0.00p = £0.00
In-house savings 2,203kWh x 18.34p = £404.00
Balance £-6,150.43
Year 7
FiT Generation 4,399kWh x 0.00p = £0.00
Export Income 2,200kWh x 0.00p = £0.00
In-house savings 2,200kWh x 19.26p = £423.56
Balance £-5,726.87
Year 8
FiT Generation 4,391kWh x 0.00p = £0.00
Export Income 2,195kWh x 0.00p = £0.00
In-house savings 2,195kWh x 20.22p = £443.90
Balance £-5,282.97
Year 9
FiT Generation 4,381kWh x 0.00p = £0.00
Export Income 2,190kWh x 0.00p = £0.00
In-house savings 2,190kWh x 21.23p = £465.02
Balance £-4,817.95
Year 10
FiT Generation 4,368kWh x 0.00p = £0.00
Export Income 2,184kWh x 0.00p = £0.00
In-house savings 2,184kWh x 22.29p = £486.92
Balance £-4,331.03
Year 11
FiT Generation 4,354kWh x 0.00p = £0.00
Export Income 2,177kWh x 0.00p = £0.00
In-house savings 2,177kWh x 23.41p = £509.61
Balance £-3,821.42
Year 12
FiT Generation 4,338kWh x 0.00p = £0.00
Export Income 2,169kWh x 0.00p = £0.00
In-house savings 2,169kWh x 24.58p = £533.10
Balance £-3,288.32
Year 13
FiT Generation 4,320kWh x 0.00p = £0.00
Export Income 2,160kWh x 0.00p = £0.00
In-house savings 2,160kWh x 25.81p = £557.37
Balance £-2,730.95
Year 14
FiT Generation 4,299kWh x 0.00p = £0.00
Export Income 2,149kWh x 0.00p = £0.00
In-house savings 2,149kWh x 27.10p = £582.42
Balance £-2,148.53
Year 15
FiT Generation 4,276kWh x 0.00p = £0.00
Export Income 2,138kWh x 0.00p = £0.00
In-house savings 2,138kWh x 28.45p = £608.26
Balance £-1,540.27
Year 16
FiT Generation 4,250kWh x 0.00p = £0.00
Export Income 2,125kWh x 0.00p = £0.00
In-house savings 2,125kWh x 29.87p = £634.85
Balance £-2,781.08
Year 17
FiT Generation 4,222kWh x 0.00p = £0.00
Export Income 2,111kWh x 0.00p = £0.00
In-house savings 2,111kWh x 31.37p = £662.20
Balance £-2,118.88
Year 18
FiT Generation 4,192kWh x 0.00p = £0.00
Export Income 2,096kWh x 0.00p = £0.00
In-house savings 2,096kWh x 32.94p = £690.27
Balance £-1,428.61
Year 19
FiT Generation 4,158kWh x 0.00p = £0.00
Export Income 2,079kWh x 0.00p = £0.00
In-house savings 2,079kWh x 34.58p = £719.03
Balance £-709.57
Year 20
FiT Generation 4,122kWh x 0.00p = £0.00
Export Income 2,061kWh x 0.00p = £0.00
In-house savings 2,061kWh x 36.31p = £748.46
Balance £38.89
System 22 x Sharp 235W Poly
Power 5.17kWp
Est Outlay £8,136.45
Feed-In & Savings £310.79pa
Pay back time 19y 11m
Profit over 20yrs £35.81
More Detailed calc »

Annual breakdown for a 5.17kWp system of 22 x 235Wp panels
Facing Ssw @ 35° in PE2 8GA permits generation of 4,326kWh/pa

Year
FiT Generation
Export Income
In-house savings
Balance
Year 1
FiT Generation 4,326kWh x 0.00p = £0.00
Export Income 2,163kWh x 0.00p = £0.00
In-house savings 2,163kWh x 14.37p = £310.79
Balance £-7,825.66
Year 2
FiT Generation 4,325kWh x 0.00p = £0.00
Export Income 2,163kWh x 0.00p = £0.00
In-house savings 2,163kWh x 15.09p = £326.31
Balance £-7,499.35
Year 3
FiT Generation 4,324kWh x 0.00p = £0.00
Export Income 2,162kWh x 0.00p = £0.00
In-house savings 2,162kWh x 15.84p = £342.54
Balance £-7,156.81
Year 4
FiT Generation 4,322kWh x 0.00p = £0.00
Export Income 2,161kWh x 0.00p = £0.00
In-house savings 2,161kWh x 16.64p = £359.49
Balance £-6,797.32
Year 5
FiT Generation 4,319kWh x 0.00p = £0.00
Export Income 2,159kWh x 0.00p = £0.00
In-house savings 2,159kWh x 17.47p = £377.17
Balance £-6,420.15
Year 6
FiT Generation 4,314kWh x 0.00p = £0.00
Export Income 2,157kWh x 0.00p = £0.00
In-house savings 2,157kWh x 18.34p = £395.58
Balance £-6,024.57
Year 7
FiT Generation 4,307kWh x 0.00p = £0.00
Export Income 2,154kWh x 0.00p = £0.00
In-house savings 2,154kWh x 19.26p = £414.74
Balance £-5,609.83
Year 8
FiT Generation 4,299kWh x 0.00p = £0.00
Export Income 2,150kWh x 0.00p = £0.00
In-house savings 2,150kWh x 20.22p = £434.65
Balance £-5,175.17
Year 9
FiT Generation 4,289kWh x 0.00p = £0.00
Export Income 2,145kWh x 0.00p = £0.00
In-house savings 2,145kWh x 21.23p = £455.33
Balance £-4,719.84
Year 10
FiT Generation 4,277kWh x 0.00p = £0.00
Export Income 2,139kWh x 0.00p = £0.00
In-house savings 2,139kWh x 22.29p = £476.78
Balance £-4,243.07
Year 11
FiT Generation 4,264kWh x 0.00p = £0.00
Export Income 2,132kWh x 0.00p = £0.00
In-house savings 2,132kWh x 23.41p = £499.00
Balance £-3,744.07
Year 12
FiT Generation 4,248kWh x 0.00p = £0.00
Export Income 2,124kWh x 0.00p = £0.00
In-house savings 2,124kWh x 24.58p = £521.99
Balance £-3,222.08
Year 13
FiT Generation 4,230kWh x 0.00p = £0.00
Export Income 2,115kWh x 0.00p = £0.00
In-house savings 2,115kWh x 25.81p = £545.76
Balance £-2,676.33
Year 14
FiT Generation 4,209kWh x 0.00p = £0.00
Export Income 2,105kWh x 0.00p = £0.00
In-house savings 2,105kWh x 27.10p = £570.29
Balance £-2,106.03
Year 15
FiT Generation 4,187kWh x 0.00p = £0.00
Export Income 2,093kWh x 0.00p = £0.00
In-house savings 2,093kWh x 28.45p = £595.59
Balance £-1,510.45
Year 16
FiT Generation 4,162kWh x 0.00p = £0.00
Export Income 2,081kWh x 0.00p = £0.00
In-house savings 2,081kWh x 29.87p = £621.63
Balance £-2,725.40
Year 17
FiT Generation 4,134kWh x 0.00p = £0.00
Export Income 2,067kWh x 0.00p = £0.00
In-house savings 2,067kWh x 31.37p = £648.40
Balance £-2,077.00
Year 18
FiT Generation 4,104kWh x 0.00p = £0.00
Export Income 2,052kWh x 0.00p = £0.00
In-house savings 2,052kWh x 32.94p = £675.89
Balance £-1,401.11
Year 19
FiT Generation 4,072kWh x 0.00p = £0.00
Export Income 2,036kWh x 0.00p = £0.00
In-house savings 2,036kWh x 34.58p = £704.05
Balance £-697.06
Year 20
FiT Generation 4,036kWh x 0.00p = £0.00
Export Income 2,018kWh x 0.00p = £0.00
In-house savings 2,018kWh x 36.31p = £732.87
Balance £35.81

Greatest Annual Income:

System
Power
Est Outlay
Feed-In & Savings
Pay back time
Profit over 20yrs
More
System 28 x Sanyo HIT H250E01
Power 7.00kWp
Est Outlay £13,408.23
Feed-In & Savings £420.80pa
Pay back time 22y 4m
Profit over 20yrs £2,031.45
More Detailed calc »

Annual breakdown for a 7.00kWp system of 28 x 250Wp panels
Facing Ssw @ 35° in PE2 8GA permits generation of 5,857kWh/pa

Year
FiT Generation
Export Income
In-house savings
Balance
Year 1
FiT Generation 5,857kWh x 0.00p = £0.00
Export Income 2,928kWh x 0.00p = £0.00
In-house savings 2,928kWh x 14.37p = £420.80
Balance £-12,987.43
Year 2
FiT Generation 5,856kWh x 0.00p = £0.00
Export Income 2,928kWh x 0.00p = £0.00
In-house savings 2,928kWh x 15.09p = £441.81
Balance £-12,545.62
Year 3
FiT Generation 5,855kWh x 0.00p = £0.00
Export Income 2,927kWh x 0.00p = £0.00
In-house savings 2,927kWh x 15.84p = £463.79
Balance £-12,081.82
Year 4
FiT Generation 5,852kWh x 0.00p = £0.00
Export Income 2,926kWh x 0.00p = £0.00
In-house savings 2,926kWh x 16.64p = £486.74
Balance £-11,595.08
Year 5
FiT Generation 5,847kWh x 0.00p = £0.00
Export Income 2,924kWh x 0.00p = £0.00
In-house savings 2,924kWh x 17.47p = £510.67
Balance £-11,084.41
Year 6
FiT Generation 5,841kWh x 0.00p = £0.00
Export Income 2,920kWh x 0.00p = £0.00
In-house savings 2,920kWh x 18.34p = £535.60
Balance £-10,548.81
Year 7
FiT Generation 5,832kWh x 0.00p = £0.00
Export Income 2,916kWh x 0.00p = £0.00
In-house savings 2,916kWh x 19.26p = £561.54
Balance £-9,987.27
Year 8
FiT Generation 5,821kWh x 0.00p = £0.00
Export Income 2,911kWh x 0.00p = £0.00
In-house savings 2,911kWh x 20.22p = £588.51
Balance £-9,398.76
Year 9
FiT Generation 5,808kWh x 0.00p = £0.00
Export Income 2,904kWh x 0.00p = £0.00
In-house savings 2,904kWh x 21.23p = £616.50
Balance £-8,782.26
Year 10
FiT Generation 5,792kWh x 0.00p = £0.00
Export Income 2,896kWh x 0.00p = £0.00
In-house savings 2,896kWh x 22.29p = £645.54
Balance £-8,136.72
Year 11
FiT Generation 5,773kWh x 0.00p = £0.00
Export Income 2,886kWh x 0.00p = £0.00
In-house savings 2,886kWh x 23.41p = £675.62
Balance £-7,461.10
Year 12
FiT Generation 5,751kWh x 0.00p = £0.00
Export Income 2,876kWh x 0.00p = £0.00
In-house savings 2,876kWh x 24.58p = £706.76
Balance £-6,754.34
Year 13
FiT Generation 5,727kWh x 0.00p = £0.00
Export Income 2,863kWh x 0.00p = £0.00
In-house savings 2,863kWh x 25.81p = £738.93
Balance £-6,015.41
Year 14
FiT Generation 5,699kWh x 0.00p = £0.00
Export Income 2,850kWh x 0.00p = £0.00
In-house savings 2,850kWh x 27.10p = £772.15
Balance £-5,243.25
Year 15
FiT Generation 5,669kWh x 0.00p = £0.00
Export Income 2,834kWh x 0.00p = £0.00
In-house savings 2,834kWh x 28.45p = £806.40
Balance £-4,436.85
Year 16
FiT Generation 5,635kWh x 0.00p = £0.00
Export Income 2,817kWh x 0.00p = £0.00
In-house savings 2,817kWh x 29.87p = £841.66
Balance £-6,081.86
Year 17
FiT Generation 5,598kWh x 0.00p = £0.00
Export Income 2,799kWh x 0.00p = £0.00
In-house savings 2,799kWh x 31.37p = £877.92
Balance £-5,203.94
Year 18
FiT Generation 5,557kWh x 0.00p = £0.00
Export Income 2,778kWh x 0.00p = £0.00
In-house savings 2,778kWh x 32.94p = £915.13
Balance £-4,288.81
Year 19
FiT Generation 5,513kWh x 0.00p = £0.00
Export Income 2,756kWh x 0.00p = £0.00
In-house savings 2,756kWh x 34.58p = £953.27
Balance £-3,335.55
Year 20
FiT Generation 5,465kWh x 0.00p = £0.00
Export Income 2,733kWh x 0.00p = £0.00
In-house savings 2,733kWh x 36.31p = £992.28
Balance £-2,343.27
System 28 x Sanyo HIT H245E01
Power 6.86kWp
Est Outlay £13,074.60
Feed-In & Savings £412.38pa
Pay back time 22y 3m
Profit over 20yrs £2,056.29
More Detailed calc »

Annual breakdown for a 6.86kWp system of 28 x 245Wp panels
Facing Ssw @ 35° in PE2 8GA permits generation of 5,740kWh/pa

Year
FiT Generation
Export Income
In-house savings
Balance
Year 1
FiT Generation 5,740kWh x 0.00p = £0.00
Export Income 2,870kWh x 0.00p = £0.00
In-house savings 2,870kWh x 14.37p = £412.38
Balance £-12,662.22
Year 2
FiT Generation 5,739kWh x 0.00p = £0.00
Export Income 2,870kWh x 0.00p = £0.00
In-house savings 2,870kWh x 15.09p = £432.98
Balance £-12,229.24
Year 3
FiT Generation 5,738kWh x 0.00p = £0.00
Export Income 2,869kWh x 0.00p = £0.00
In-house savings 2,869kWh x 15.84p = £454.52
Balance £-11,774.72
Year 4
FiT Generation 5,735kWh x 0.00p = £0.00
Export Income 2,867kWh x 0.00p = £0.00
In-house savings 2,867kWh x 16.64p = £477.01
Balance £-11,297.72
Year 5
FiT Generation 5,730kWh x 0.00p = £0.00
Export Income 2,865kWh x 0.00p = £0.00
In-house savings 2,865kWh x 17.47p = £500.46
Balance £-10,797.26
Year 6
FiT Generation 5,724kWh x 0.00p = £0.00
Export Income 2,862kWh x 0.00p = £0.00
In-house savings 2,862kWh x 18.34p = £524.89
Balance £-10,272.37
Year 7
FiT Generation 5,715kWh x 0.00p = £0.00
Export Income 2,858kWh x 0.00p = £0.00
In-house savings 2,858kWh x 19.26p = £550.31
Balance £-9,722.05
Year 8
FiT Generation 5,705kWh x 0.00p = £0.00
Export Income 2,852kWh x 0.00p = £0.00
In-house savings 2,852kWh x 20.22p = £576.74
Balance £-9,145.32
Year 9
FiT Generation 5,691kWh x 0.00p = £0.00
Export Income 2,846kWh x 0.00p = £0.00
In-house savings 2,846kWh x 21.23p = £604.17
Balance £-8,541.15
Year 10
FiT Generation 5,676kWh x 0.00p = £0.00
Export Income 2,838kWh x 0.00p = £0.00
In-house savings 2,838kWh x 22.29p = £632.63
Balance £-7,908.52
Year 11
FiT Generation 5,657kWh x 0.00p = £0.00
Export Income 2,829kWh x 0.00p = £0.00
In-house savings 2,829kWh x 23.41p = £662.11
Balance £-7,246.41
Year 12
FiT Generation 5,636kWh x 0.00p = £0.00
Export Income 2,818kWh x 0.00p = £0.00
In-house savings 2,818kWh x 24.58p = £692.62
Balance £-6,553.79
Year 13
FiT Generation 5,612kWh x 0.00p = £0.00
Export Income 2,806kWh x 0.00p = £0.00
In-house savings 2,806kWh x 25.81p = £724.16
Balance £-5,829.63
Year 14
FiT Generation 5,585kWh x 0.00p = £0.00
Export Income 2,793kWh x 0.00p = £0.00
In-house savings 2,793kWh x 27.10p = £756.71
Balance £-5,072.92
Year 15
FiT Generation 5,555kWh x 0.00p = £0.00
Export Income 2,778kWh x 0.00p = £0.00
In-house savings 2,778kWh x 28.45p = £790.27
Balance £-4,282.65
Year 16
FiT Generation 5,522kWh x 0.00p = £0.00
Export Income 2,761kWh x 0.00p = £0.00
In-house savings 2,761kWh x 29.87p = £824.83
Balance £-5,894.75
Year 17
FiT Generation 5,486kWh x 0.00p = £0.00
Export Income 2,743kWh x 0.00p = £0.00
In-house savings 2,743kWh x 31.37p = £860.36
Balance £-5,034.40
Year 18
FiT Generation 5,446kWh x 0.00p = £0.00
Export Income 2,723kWh x 0.00p = £0.00
In-house savings 2,723kWh x 32.94p = £896.83
Balance £-4,137.57
Year 19
FiT Generation 5,403kWh x 0.00p = £0.00
Export Income 2,701kWh x 0.00p = £0.00
In-house savings 2,701kWh x 34.58p = £934.20
Balance £-3,203.37
Year 20
FiT Generation 5,356kWh x 0.00p = £0.00
Export Income 2,678kWh x 0.00p = £0.00
In-house savings 2,678kWh x 36.31p = £972.44
Balance £-2,230.93
System 28 x Sanyo HIT N240SE10
Power 6.72kWp
Est Outlay £14,306.70
Feed-In & Savings £403.97pa
Pay back time 23y 7m
Profit over 20yrs £1,665.71
More Detailed calc »

Annual breakdown for a 6.72kWp system of 28 x 240Wp panels
Facing Ssw @ 35° in PE2 8GA permits generation of 5,622kWh/pa

Year
FiT Generation
Export Income
In-house savings
Balance
Year 1
FiT Generation 5,622kWh x 0.00p = £0.00
Export Income 2,811kWh x 0.00p = £0.00
In-house savings 2,811kWh x 14.37p = £403.97
Balance £-13,902.73
Year 2
FiT Generation 5,622kWh x 0.00p = £0.00
Export Income 2,811kWh x 0.00p = £0.00
In-house savings 2,811kWh x 15.09p = £424.14
Balance £-13,478.59
Year 3
FiT Generation 5,621kWh x 0.00p = £0.00
Export Income 2,810kWh x 0.00p = £0.00
In-house savings 2,810kWh x 15.84p = £445.24
Balance £-13,033.34
Year 4
FiT Generation 5,618kWh x 0.00p = £0.00
Export Income 2,809kWh x 0.00p = £0.00
In-house savings 2,809kWh x 16.64p = £467.27
Balance £-12,566.07
Year 5
FiT Generation 5,613kWh x 0.00p = £0.00
Export Income 2,807kWh x 0.00p = £0.00
In-house savings 2,807kWh x 17.47p = £490.25
Balance £-12,075.83
Year 6
FiT Generation 5,607kWh x 0.00p = £0.00
Export Income 2,804kWh x 0.00p = £0.00
In-house savings 2,804kWh x 18.34p = £514.18
Balance £-11,561.65
Year 7
FiT Generation 5,599kWh x 0.00p = £0.00
Export Income 2,799kWh x 0.00p = £0.00
In-house savings 2,799kWh x 19.26p = £539.08
Balance £-11,022.57
Year 8
FiT Generation 5,588kWh x 0.00p = £0.00
Export Income 2,794kWh x 0.00p = £0.00
In-house savings 2,794kWh x 20.22p = £564.97
Balance £-10,457.60
Year 9
FiT Generation 5,575kWh x 0.00p = £0.00
Export Income 2,788kWh x 0.00p = £0.00
In-house savings 2,788kWh x 21.23p = £591.84
Balance £-9,865.76
Year 10
FiT Generation 5,560kWh x 0.00p = £0.00
Export Income 2,780kWh x 0.00p = £0.00
In-house savings 2,780kWh x 22.29p = £619.72
Balance £-9,246.04
Year 11
FiT Generation 5,542kWh x 0.00p = £0.00
Export Income 2,771kWh x 0.00p = £0.00
In-house savings 2,771kWh x 23.41p = £648.60
Balance £-8,597.45
Year 12
FiT Generation 5,521kWh x 0.00p = £0.00
Export Income 2,761kWh x 0.00p = £0.00
In-house savings 2,761kWh x 24.58p = £678.49
Balance £-7,918.96
Year 13
FiT Generation 5,498kWh x 0.00p = £0.00
Export Income 2,749kWh x 0.00p = £0.00
In-house savings 2,749kWh x 25.81p = £709.38
Balance £-7,209.58
Year 14
FiT Generation 5,471kWh x 0.00p = £0.00
Export Income 2,736kWh x 0.00p = £0.00
In-house savings 2,736kWh x 27.10p = £741.27
Balance £-6,468.32
Year 15
FiT Generation 5,442kWh x 0.00p = £0.00
Export Income 2,721kWh x 0.00p = £0.00
In-house savings 2,721kWh x 28.45p = £774.15
Balance £-5,694.17
Year 16
FiT Generation 5,409kWh x 0.00p = £0.00
Export Income 2,705kWh x 0.00p = £0.00
In-house savings 2,705kWh x 29.87p = £808.00
Balance £-7,273.38
Year 17
FiT Generation 5,374kWh x 0.00p = £0.00
Export Income 2,687kWh x 0.00p = £0.00
In-house savings 2,687kWh x 31.37p = £842.80
Balance £-6,430.58
Year 18
FiT Generation 5,335kWh x 0.00p = £0.00
Export Income 2,667kWh x 0.00p = £0.00
In-house savings 2,667kWh x 32.94p = £878.52
Balance £-5,552.05
Year 19
FiT Generation 5,292kWh x 0.00p = £0.00
Export Income 2,646kWh x 0.00p = £0.00
In-house savings 2,646kWh x 34.58p = £915.13
Balance £-4,636.92
Year 20
FiT Generation 5,247kWh x 0.00p = £0.00
Export Income 2,623kWh x 0.00p = £0.00
In-house savings 2,623kWh x 36.31p = £952.59
Balance £-3,684.33
These estimates are calculated by comparing a range of MCS certified panels to determine the best possible payback. Assuming that you pay 0.1437p per unit and that around 50% of the solar electricity that you generate will be used in your home.

Our Assumptions

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  • Illustrative solar PV performance figures only. Figures are given in good faith but do not constitute "Financial Advice".
  • Your property has an Energy Performance Certificate (EPC) rating of level D or better.
  • Photovoltaic Panels will not be shaded (e.g. by Trees or Buildings) as shading affects PV output.
  • Installation costs are based on industry averages for installation type/size. Every install is different and you should obtain 3 quotes.
  • Exact PV subsidy figures may depend on grants available at particular locations and other factors.
  • Yearly PV output uses a factored degradation over time based on industry estimates.
  • VAT is included (at 5% where appropriate) unless a new build is specified.
  • Exact equipment costs are estimated based on retail prices in 2012 and will vary by installer/supplier.
  • Assuming that you pay 0.1437p per unit and that around 50% of the solar electricity that you generate will be used in your home, without an export meter.
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