Northamptonshire
Solar panels in Towcester, sized to your roof.
A 12-panel roof in Towcester makes about 6,500 kWh a year and costs £6,360 installed; a free 30-minute video call sizes it to yours.
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Towcester's solar year
From 36.5 kWh per kWp in December to 124.8 in July: a roof in Towcester makes 3.4 times as much in its best month as in its darkest, and 1,022 kWh per kWp across the year.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 39.2 |
| February | 53.5 |
| March | 89 |
| April | 113 |
| May | 123 |
| June | 122 |
| July | 125 |
| August | 111 |
| September | 96.5 |
| October | 66.8 |
| November | 46.5 |
| December | 36.5 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
For scale: 1,022 kWh per kWp in Towcester against 925, our GB average (the mean of our 85 county PVGIS estimates), which puts Towcester 10% above it.
How Towcester compares
Small towns rarely get published solar figures, so here are the numbers for Towcester. It is one of 16 Northamptonshire towns we track, and it ranks joint 8th of 16 for solar yield, a town of 12,609 people in the House of Commons Library settlement data. PVGIS gives its roofs 1,022 kWh per kWp a year, 2.80 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £915 of year one benefit, £247 of it from your own generation and £668 from export at 12p.
Treat these as calibration rather than a quote. The calculator below runs the same model, opened on Towcester'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.
West Northamptonshire is the planning authority covering Towcester, which the House of Commons Library classes 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 Towcester at 52.12791, -0.98581 on PVGIS data, with imports valued at 26.32p/kWh and solar at £1,000 per kWp installed. Sources and assumptions: help page.
Who runs the grid in Towcester
Towcester is served by National Grid Electricity Distribution (NGED): the town's centre falls inside its East Midlands licence area on NESO's boundary map.
What decides the paperwork is the inverter and battery output, not the number of panels. Up to 3.68kW per phase, a system follows G98: NGED is notified within 28 days of commissioning and nothing has to be approved first.
A bigger inverter or battery output needs a G99 application in advance. 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 Towcester
A heat pump in Towcester
A heat pump does most of its work from November to February. Over those four months, 12 panels in Towcester make about 1,120 kWh, against 3,060 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 Towcester
A 12-panel roof in Towcester 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.
If you rent, or own a flat, and have private off-street parking, the government chargepoint grant covers 75% of the cost, capped at £500 a socket, until 31 March 2027 (gov.uk, checked 28 September 2026). The calculator above prices a 7.4kW smart charger from £1,100 installed.
Installed prices, the same in every town
Every system is designed around your roof on the free call before anything is fitted.
Solar panel servicing and repair in Towcester
Faults, servicing and ageing inverters follow the same economics in Towcester as anywhere else, and the guides below price them plainly.
Towcester solar questions
What does a solar panel system produce in Towcester?
Each kWp of panels in Towcester makes 1,022 kWh a year on PVGIS figures, so a typical 12-panel system produces around 6,500 kWh, from about 230 kWh in December up to 790 kWh in July.
How much are solar panels in Towcester?
The price does not move by postcode. At £1,000 per kWp installed, 12 panels (6.36 kWp) come to £6,360 in Towcester before a battery. What Towcester changes is the return, about 6,500 kWh a year from that system, and your design call prices your actual roof.
Would a system in Towcester need approval from the network operator?
Towcester is on National Grid Electricity Distribution's network (East Midlands licence area). Systems up to 3.68kW per phase of inverter output follow G98: NGED is notified within 28 days of commissioning, with no approval needed first. Anything larger needs a G99 application before installation. NGED's guaranteed standards give 45 working days for a low voltage generation quotation, with £80 paid for each working day late. Our G98 vs G99 guide explains both routes.
How much can I earn from exporting solar in Towcester?
With typical use and no battery, a 12-panel system in Towcester exports about 5,563 kWh a year. At 12p per kWh that is roughly £668; 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 Towcester in winter?
It works, but the year is lopsided. 68% of a Towcester roof's output lands between April and September; the four months from November to February give about 1,120 kWh on a 12-panel system. Payback is worked out on the whole year, not the winter.
How Towcester compares with its neighbours
Same satellite dataset, same assumptions, so the differences are real geography rather than modelling noise.
| Town | kWh per kWp a year | vs Towcester |
|---|---|---|
| Towcester | 1,022 | this town |
| Buckingham | 1,014 | −8 kWh |
| Northampton | 1,017 | −5 kWh |
| Brackley | 1,016 | −6 kWh |
| Newport Pagnell | 1,010 | −12 kWh |
| Milton Keynes | 1,014 | −8 kWh |
| Daventry | 1,012 | −10 kWh |
Same PVGIS v5.2 query for every town. Small differences are within year-to-year weather; more than about 30 kWh per kWp apart is geography.
Also for Towcester: Solar panels in Towcester from OVO Solar & Battery
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Further reading for Towcester
Sourced, dated and written by us. The same ground we cover on your free call.
Best solar panels UK 2026: what the datasheets actually say
One pick per job, the specs behind each, and what moves payback more than the badge.
Read the guide →Adding a battery to solar panels you already own
Retrofitting a battery to working solar is straightforward. The paperwork is where people trip up.
Read the guide →Smart charge point regulations, explained
Why your charger arrives pre-set to charge overnight, and why it waits before it starts.
Read the guide →Sizing a heat pump: what a proper survey covers
Sized by calculation, not by rule of thumb. What the survey covers, and what guessing costs.
Read the guide →Which tariffs are actually built for battery charging
A battery buys cheap and uses dear. The tariff decides how much that is worth.
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.