Hampshire
Solar panels in Locks Heath, designed on a free call.
Twelve panels (6.36 kWp) here make about 6,930 kWh a year for £6,360 installed, designed around your roof on a free 30-minute video call.
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Sunlight in Locks Heath, in numbers
From 37.7 kWh per kWp in December to 135.6 in July: a roof in Locks Heath makes 3.6 times as much in its best month as in its darkest, and 1,090 kWh per kWp across the year.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 41.2 |
| February | 56.3 |
| March | 95.1 |
| April | 125 |
| May | 131 |
| June | 134 |
| July | 136 |
| August | 118 |
| September | 101 |
| October | 68.8 |
| November | 47.3 |
| December | 37.7 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
For scale: 1,090 kWh per kWp in Locks Heath against 925, our GB average (the mean of our 85 county PVGIS estimates), which puts Locks Heath 18% above it.
How Locks Heath compares
Among the places we publish figures for, Locks Heath is one of 45 Hampshire towns we track, and it ranks joint 25th of 45 for solar yield. It is a medium town in the House of Commons Library classification, with 35,446 residents, and its roofs see 2.99 peak sun hours a day across the year. That drives the standard 12 panel model to 6,932 kWh of generation, of which around 5,996 kWh is exported at 12p for £719 a year, with £247 saved on electricity you would otherwise buy at 26.32p.
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 Locks Heath's own yield.
Any planning application in Locks Heath sits with Fareham, and its official House of Commons Library settlement class is medium 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.
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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 Locks Heath (50.86187, -1.2708), a 26.32p/kWh import price and £1,000 per kWp installed; see the help page for the full method.
SSEN and your Locks Heath connection
Locks Heath sits in Scottish and Southern Electricity Networks' Southern England licence area, so SSEN is the network operator (DNO) any solar panels or battery here are registered with.
Below 3.68kW per phase of inverter and battery output, the G98 route applies: the installation is notified to SSEN within 28 days of commissioning, with no prior approval.
Above that, G99 means applying before the work is booked. SSEN says it can take up to 45 working days to issue a quotation for a generation connection above 3.68kW per phase and up to 50kW.
Sources: NESO DNO licence areas (3 May 2024); SSEN, micro-generation connections page, checked 25 September 2026. G98 vs G99, explained.
Beyond the panels: heating and car charging in Locks Heath
A heat pump in Locks Heath
In December, the darkest month here, 12 panels in Locks Heath make about 240 kWh. That is when a heat pump runs hardest, so its running cost in Locks Heath comes down to the tariff and the flow temperature rather 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 Locks Heath
Locks Heath's July output, about 860 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.
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.
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 Locks Heath
The same sourced benchmarks apply in Locks Heath as everywhere we cover: honest repair pricing and what a service should include.
Solar in Locks Heath: your questions answered
How much electricity do solar panels make in Locks Heath?
About 6,930 kWh a year from 12 panels (6.36 kWp), on PVGIS satellite data for Locks Heath: 1,090 kWh per kWp, or 2.99 peak sun hours a day on average. July is the strongest month, at about 860 kWh.
Is solar more expensive in Locks Heath?
Prices on this site are the same everywhere: £1,000 per kWp installed, which puts a 12-panel system at £6,360 in Locks Heath, and a Duracell Dura16 installed with solar at £4,450 on top. The local part is generation, about 6,930 kWh a year here, which is what drives payback.
Which DNO covers Locks Heath, and what does it need from me?
Scottish and Southern Electricity Networks (SSEN) covers Locks Heath. A home system of up to 3.68kW per phase is notified to SSEN within 28 days of commissioning under G98, and nothing waits on approval. Larger outputs need a G99 application before work starts. SSEN says it can take up to 45 working days to issue a quotation for a generation connection above 3.68kW per phase and up to 50kW.
What could I earn from exporting in Locks Heath?
On the 12p export scenario, a 12-panel system in Locks Heath sends about 5,996 kWh a year to the grid, worth around £719. The export rates table compares what each supplier pays.
How much solar does Locks Heath get in December?
December is the low point: about 240 kWh from a 12-panel system in Locks Heath, on PVGIS data, rising to 860 kWh in July. From November to February the same system makes about 1,160 kWh in total, which is why a battery charged off-peak does more of the work in winter.
How Locks Heath 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 Locks Heath |
|---|---|---|
| Locks Heath | 1,090 | this town |
| Whiteley | 1,090 | level |
| Bursledon | 1,092 | +2 kWh |
| Fareham | 1,117 | +27 kWh |
| Hedge End | 1,084 | −6 kWh |
| Lee-on-the-Solent | 1,104 | +14 kWh |
| West End | 1,085 | −5 kWh |
Each row is a PVGIS v5.2 run at that town's centre with the same settings. Treat gaps of a few kWh as noise and gaps over about 30 kWh per kWp as real differences in sunshine.
Also for Locks Heath: Solar panels in Locks Heath from OVO Solar & Battery
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Further reading for Locks Heath
Sourced, dated and written by us. The same ground we cover on your free call.
What a solar service costs, and how often you actually need one
MCS advises a contractor visit at year 10 on a privately owned home. Most plans sell one a year.
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Read the guide →Get my free quote
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