Hertfordshire
Solar panels in Stevenage, sized to your roof.
About 6,520 kWh a year from 12 panels in Stevenage, £6,360 installed, with your system designed 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
Stevenage's solar year
PVGIS puts Stevenage at 1,025 kWh per kWp a year, 1% above our Hertfordshire county estimate. 68% of it arrives between April and September, peaking in July.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 38.6 |
| February | 53.4 |
| March | 89.7 |
| April | 114 |
| May | 123 |
| June | 123 |
| July | 125 |
| August | 112 |
| September | 97.8 |
| October | 66.4 |
| November | 46.7 |
| December | 36.3 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
For scale: 1,025 kWh per kWp in Stevenage against 925, our GB average (the mean of our 85 county PVGIS estimates), which puts Stevenage 11% above it.
How Stevenage compares
Stevenage is one of 27 Hertfordshire towns we track, and it ranks 4th of 27 for solar yield. The House of Commons Library settlement data classes it as a large town of 96,844 people. At 1,025 kWh per kWp a year, a typical 12 panel system here pays for itself in around 6.9 years on the 12p scenario: £916 of year one benefit against £6,360 installed, £247 of that benefit from cutting 26.32p imports with your own generation.
Every figure here assumes a clear, south-facing roof at 35 degrees. Yours will differ, which is what the free design call is for; until then, the calculator below tests panels, batteries and export rates on Stevenage's own yield.
Planning applications in Stevenage go to its own council, and the House of Commons Library classes it as a large 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.
The figures use PVGIS for the centre of Stevenage (51.90539, -0.18741), a 26.32p/kWh import price and £1,000 per kWp installed; see the help page for the full method.
Who runs the grid in Stevenage
Stevenage sits in UK Power Networks' East England licence area, so UK Power Networks is the network operator (DNO) any solar panels or battery here are registered with.
G98 is the simple route. If the inverter, plus any battery, stays at or under 3.68kW per phase, UK Power Networks only has to be told within 28 days after the system is commissioned.
Anything bigger is a G99 case and is applied for first. Ofgem's guaranteed standard for a low voltage generation connection quotation is 45 working days, with £80 paid for each working day late, and it binds UK Power Networks as it does every network operator.
Sources: NESO DNO licence areas (3 May 2024); Ofgem, Distributed Generation Standards Direction guidance, checked 27 September 2026. G98 vs G99, explained.
Beyond the panels: heating and car charging in Stevenage
A heat pump in Stevenage
A heat pump does most of its work from November to February. Over those four months, 12 panels in Stevenage make about 1,110 kWh, against 3,070 kWh from May to August, so winter heating runs mostly on grid electricity and the tariff matters more than the roof.
Grant support in England comes from the Boiler Upgrade Scheme: £7,500 for an air source or ground source heat pump, £2,500 for air-to-air, and an extra £1,500 until March 2027 where the home is heated by oil or LPG off the gas grid (gov.uk, checked 28 September 2026).
Charging an EV in Stevenage
A 12-panel roof in Stevenage makes about 790 kWh in July. A typical home uses around 70 kWh of that in daylight (the calculator's typical-use settings), which leaves most of the month's output for an EV or for export.
The calculator above includes a 7.4kW smart charger from £1,100 installed. Renters and flat owners with off-street parking can claim 75% of a chargepoint's cost, up to £500 per socket, until 31 March 2027 (gov.uk, checked 28 September 2026).
The packages, priced before anyone visits
Every system is designed around your roof on the free call before anything is fitted.
Solar panel servicing and repair in Stevenage
Faults, servicing and ageing inverters follow the same economics in Stevenage as anywhere else, and the guides below price them plainly.
Solar in Stevenage: your questions answered
What does a solar panel system produce in Stevenage?
Each kWp of panels in Stevenage makes 1,025 kWh a year on PVGIS figures, so a typical 12-panel system produces around 6,520 kWh, from about 230 kWh in December up to 790 kWh in July.
How much are solar panels in Stevenage?
The price does not move by postcode. At £1,000 per kWp installed, 12 panels (6.36 kWp) come to £6,360 in Stevenage before a battery. What Stevenage changes is the return, about 6,520 kWh a year from that system, and your design call prices your actual roof.
Would a system in Stevenage need approval from the network operator?
Stevenage is on UK Power Networks' network (East England licence area). Systems up to 3.68kW per phase of inverter output follow G98: UK Power Networks is notified within 28 days of commissioning, with no approval needed first. Anything larger needs a G99 application before installation. Ofgem's guaranteed standard for a low voltage generation connection quotation is 45 working days, with £80 paid for each working day late, and it binds UK Power Networks as it does every network operator. Our G98 vs G99 guide explains both routes.
How much can I earn from exporting solar in Stevenage?
With typical use and no battery, a 12-panel system in Stevenage exports about 5,582 kWh a year. At 12p per kWh that is roughly £670; a supplier paying more, or a battery that keeps more for the evening, changes the figure. See the export rates table.
Is solar worth it in Stevenage in winter?
It works, but the year is lopsided. 68% of a Stevenage roof's output lands between April and September; the four months from November to February give about 1,110 kWh on a 12-panel system. Payback is worked out on the whole year, not the winter.
How Stevenage compares with its neighbours
How the towns nearest Stevenage compare on the same PVGIS settings, closest first.
| Town | kWh per kWp a year | vs Stevenage |
|---|---|---|
| Stevenage | 1,025 | this town |
| Hitchin | 1,016 | −9 kWh |
| Letchworth | 1,019 | −6 kWh |
| Baldock | 1,024 | −1 kWh |
| Welwyn Garden City | 1,021 | −4 kWh |
| Stotfold | 1,022 | −3 kWh |
| Buntingford | 1,026 | +1 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 Stevenage: Solar panels in Stevenage from OVO Solar & Battery
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Reading for Stevenage homeowners
Sourced, dated and written by us. The same ground we cover on your free call.
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Read the guide →Are heat pumps noisy? The 37 dB(A) answer, in plain terms
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Read the guide →What the Smart Export Guarantee actually is
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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.