Solar panels in Street, designed on a free call.
Twelve panels (6.36 kWp) here make about 6,560 kWh a year for £6,360 installed, designed around your roof on a free 30-minute video call.
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- Free 30-minute video design call
- Priced before anyone visits
- Installed by our MCS-certified, fully insured teams
How much a Street roof makes, month by month
From 34.5 kWh per kWp in December to 126.6 in May: a roof in Street makes 3.7 times as much in its best month as in its darkest, and 1,032 kWh per kWp across the year.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 40.2 |
| February | 56.7 |
| March | 91.9 |
| April | 118 |
| May | 127 |
| June | 122 |
| July | 126 |
| August | 110 |
| September | 95.2 |
| October | 65.1 |
| November | 45.9 |
| December | 34.5 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
For scale: 1,032 kWh per kWp in Street against 925, our GB average (the mean of our 85 county PVGIS estimates), which puts Street 12% above it.
How Street compares
Small towns rarely get published solar figures, so here are the numbers for Street. It is one of 21 Somerset towns we track, and it ranks 8th of 21 for solar yield, a town of 12,903 people in the House of Commons Library settlement data. PVGIS gives its roofs 1,032 kWh per kWp a year, 2.83 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £922 of year one benefit, £247 of it from your own generation and £675 from export at 12p.
Treat these as calibration rather than a quote. The calculator below runs the same model, opened on Street's own yield, and prices a 12 panel system at £6,360 installed before any battery. Your free design call reworks every number for your actual roof, its shading and your usage.
Planning applications here go through Somerset; nationally, the House of Commons Library classes Street as a small town.
The charger is in the installed price but left out of payback: charging savings depend on your mileage and tariff, which the design call models properly.
Your real roof and usage, worked through on a free 30-minute video call. Use the full form or leave three details below.
Price this for your roof
Three details. We call or text within one working day to book your free 30-minute design call, on video or by phone if you prefer.
Modelled for Street at 51.12341, -2.74017 on PVGIS data, with imports valued at 26.32p/kWh and solar at £1,000 per kWp installed. Sources and assumptions: help page.
NGED and your Street connection
The distribution network operator (DNO) for Street is National Grid Electricity Distribution (NGED), which runs the South West England licence area.
For a typical home the paperwork is light: a system of up to 3.68kW per phase goes through G98, which means NGED is notified within 28 days of switch-on rather than asked beforehand.
Above that, G99 means applying before the work is booked. NGED's guaranteed standards give 45 working days for a low voltage generation quotation, with £80 paid for each working day late.
Sources: NESO DNO licence areas (3 May 2024); NGED, guaranteed standards of performance table, checked 25 September 2026. G98 vs G99, explained.

Heat pumps and EV charging in Street
A heat pump in Street
Heating demand peaks when solar is weakest. In Street, a 12-panel system makes about 220 kWh in December and 260 kWh in January, a fraction of its 810 kWh in May, which is why a heat pump here is costed on its tariff first.
The Boiler Upgrade Scheme, open in England and Wales, takes £7,500 off an air source or ground source heat pump, or £2,500 off an air-to-air unit. Homes on oil or LPG with no mains gas get £1,500 more until March 2027 (gov.uk, checked 28 September 2026).
Charging an EV in Street
Street's May output, about 810 kWh from 12 panels, is several times the 70 kWh or so a typical home uses in daylight that month on our calculator's settings. Daytime charging turns that surplus into miles.
Renters and flat owners with private off-street parking can get 75% off a chargepoint and its installation, up to £500 per socket, until 31 March 2027 (gov.uk, checked 28 September 2026). The calculator above adds a 7.4kW smart charger from £1,100 installed.
What the named kit costs, installed
Every system is designed around your roof on the free call before anything is fitted.
Solar panel servicing and repair in Street
If a system in Street is underperforming, start with the guides below: repair benchmarks, service scope, and the inverter question.
Solar in Street: your questions answered
How much energy would 12 solar panels make in Street?
Street averages 2.83 peak sun hours a day, which PVGIS turns into 1,032 kWh per kWp a year. On a 12-panel, 6.36 kWp roof that is about 6,560 kWh, 68% of it between April and September.
Is solar more expensive in Street?
Prices on this site are the same everywhere: £1,000 per kWp installed, which puts a 12-panel system at £6,360 in Street, and a Duracell Dura16 installed with solar at £4,450 on top. The local part is generation, about 6,560 kWh a year here, which is what drives payback.
Who is the network operator in Street, and do I need a G99 application?
The operator is National Grid Electricity Distribution (NGED). Most home systems use the G98 route, a notification within 28 days of switch-on for up to 3.68kW per phase, so nothing waits on the network. Above that, G99 applies and has to be granted first. NGED's guaranteed standards give 45 working days for a low voltage generation quotation, with £80 paid for each working day late. Your design call checks which route yours needs.
What could I earn from exporting in Street?
On the 12p export scenario, a 12-panel system in Street sends about 5,627 kWh a year to the grid, worth around £675. The export rates table compares what each supplier pays.
How does solar perform in Street in the winter months?
December is the weakest month in Street: about 220 kWh from 12 panels, against 810 kWh in May. The panels still generate on bright winter days; they just cover a smaller share of what the house uses.
How Street compares with its neighbours
How the towns nearest Street compare on the same PVGIS settings, closest first.
| Town | kWh per kWp a year | vs Street |
|---|---|---|
| Street | 1,032 | this town |
| Glastonbury | 1,033 | +1 kWh |
| Wells | 1,015 | −17 kWh |
| Shepton Mallet | 1,015 | −17 kWh |
| Bridgwater | 1,047 | +15 kWh |
| Yeovil | 1,041 | +9 kWh |
| Burnham-on-Sea | 1,049 | +17 kWh |
PVGIS v5.2 for each town centroid, identical assumptions throughout. A few kWh either way is weather-year noise; a spread beyond about 30 kWh per kWp is real geography.
Also for Street: Solar panels in Street from OVO Solar & Battery
See a number before you speak to anyone
Answer a few questions about your roof and usage and see an instant solar and battery estimate. No email needed to see the result.
Reading for Street homeowners
Sourced, dated and written by us. The same ground we cover on your free call.
How many solar panels do I need? The honest way to count
One panel is 2.26 square metres. The rest is measuring your roof honestly.
Read the guide →Inside a home battery: capacity, power and losses
Usable capacity, kW output, round trip losses and chemistry, in plain terms.
Read the guide →How solar aware EV charging actually works
The CT clamp, the surplus tracking and the 1.4kW floor that catches people out.
Read the guide →Do you need to replace your radiators for a heat pump?
Some change, most do not. The room by room arithmetic that decides which.
Read the guide →Why tariff choice moves payback more than kit choice
Identical kit, five times the export income. The tariff decision worked through with August 2026 rates.
Read the guide →G98 or G99: which one applies, what the application involves, and how long it takes
The G98 line sits at 3.68kW per phase. Above it, your network operator has to say yes first.
Read the guide →Get my free quote
Takes about two minutes. We call or text within one working day to book your free 30-minute video design call at a time that suits you. We design it around your roof and your numbers, and our MCS-certified, fully insured installation teams install it.