Dorset
Solar panels in Weymouth, with the numbers shown.
Twelve panels (6.36 kWp) here make about 7,280 kWh a year for £6,360 installed, designed around your roof on a free 30-minute video call.
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Weymouth's solar year
PVGIS puts Weymouth at 1,145 kWh per kWp a year, 5% above our Dorset county estimate. 69% of it arrives between April and September, peaking in July.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 41.7 |
| February | 59.4 |
| March | 99.1 |
| April | 130 |
| May | 139 |
| June | 139 |
| July | 144 |
| August | 128 |
| September | 107 |
| October | 70.2 |
| November | 49.1 |
| December | 38.9 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
For scale: 1,145 kWh per kWp in Weymouth against 925, our GB average (the mean of our 85 county PVGIS estimates), which puts Weymouth 24% above it.
How Weymouth compares
Among the places we publish figures for, Weymouth is one of 15 Dorset towns we track, and it ranks 1st of 15 for solar yield. It is a medium town in the House of Commons Library classification, with 56,384 residents, and its roofs see 3.14 peak sun hours a day across the year. That drives the standard 12 panel model to 7,282 kWh of generation, of which around 6,346 kWh is exported at 12p for £761 a year, with £247 saved on electricity you would otherwise buy at 26.32p.
These are starting numbers, not a quote. The calculator below opens on Weymouth's own PVGIS figure; change the panels, the battery or the export rate and it reruns. The design call replaces every assumption with your roof and your bills.
Dorset is the planning authority covering Weymouth, which the House of Commons Library classes as a 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.
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 Weymouth at 50.62273, -2.46251 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 Weymouth
The distribution network operator (DNO) for Weymouth is Scottish and Southern Electricity Networks (SSEN), which runs the Southern England licence area.
G98 is the simple route. If the inverter, plus any battery, stays at or under 3.68kW per phase, SSEN only has to be told within 28 days after the system is commissioned.
A bigger inverter or battery output needs a G99 application in advance. 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.
Adding a heat pump or an EV charger in Weymouth
A heat pump in Weymouth
A heat pump does most of its work from November to February. Over those four months, 12 panels in Weymouth make about 1,200 kWh, against 3,500 kWh from May to August, so winter heating runs mostly on grid electricity and the tariff matters more than the roof.
In England, the Boiler Upgrade Scheme pays £7,500 towards an air source or ground source heat pump and £2,500 towards an air-to-air one, with £1,500 more until March 2027 for homes heated by oil or LPG with no mains gas (gov.uk, checked 28 September 2026).
Charging an EV in Weymouth
From April to September, 69% of a Weymouth roof's yearly output arrives, peaking at about 910 kWh in July on 12 panels. A car parked at home in daylight can soak up what the house, at around 70 kWh of daytime use that month, cannot.
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.
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 Weymouth
Faults, servicing and ageing inverters follow the same economics in Weymouth as anywhere else, and the guides below price them plainly.
Weymouth solar questions
What does a solar panel system produce in Weymouth?
Each kWp of panels in Weymouth makes 1,145 kWh a year on PVGIS figures, so a typical 12-panel system produces around 7,280 kWh, from about 250 kWh in December up to 910 kWh in July.
How much are solar panels in Weymouth?
The price does not move by postcode. At £1,000 per kWp installed, 12 panels (6.36 kWp) come to £6,360 in Weymouth before a battery. What Weymouth changes is the return, about 7,280 kWh a year from that system, and your design call prices your actual roof.
Would a system in Weymouth need approval from the network operator?
Weymouth is on Scottish and Southern Electricity Networks' network (Southern England licence area). Systems up to 3.68kW per phase of inverter output follow G98: SSEN is notified within 28 days of commissioning, with no approval needed first. Anything larger needs a G99 application before installation. 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. Our G98 vs G99 guide explains both routes.
How much can I earn from exporting solar in Weymouth?
With typical use and no battery, a 12-panel system in Weymouth exports about 6,346 kWh a year. At 12p per kWh that is roughly £761; 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 Weymouth in winter?
It works, but the year is lopsided. 69% of a Weymouth roof's output lands between April and September; the four months from November to February give about 1,200 kWh on a 12-panel system. Payback is worked out on the whole year, not the winter.
How Weymouth 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 Weymouth |
|---|---|---|
| Weymouth | 1,145 | this town |
| Dorchester | 1,119 | −26 kWh |
| Bridport | 1,105 | −40 kWh |
| Upton | 1,094 | −51 kWh |
| Blandford Forum | 1,083 | −62 kWh |
| Swanage | 1,118 | −27 kWh |
| Corfe Mullen | 1,094 | −51 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 Weymouth: Solar panels in Weymouth from OVO Solar & Battery
Also near Weymouth
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Answer a few questions about your roof and usage and see an instant solar and battery estimate. No email needed to see the result.
Further reading for Weymouth
Sourced, dated and written by us. The same ground we cover on your free call.
East, west or south facing: what your roof direction really costs you
An east west split gives up about a fifth of the annual total, and can still be worth more than south.
Read the guide →Does a standalone battery actually pay back?
No panels means one job: buy cheap, use later. The tariff decides whether it pays.
Read the guide →Three phase and EV charging: what actually changes
Three phase buys 22kW charging. Most cars cannot use it, and load balancing usually solves the real problem.
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 →What the Smart Export Guarantee actually is
The scheme obliges suppliers to pay above zero, and leaves the rate to them.
Read the guide →NAPIT, NICEIC and competent person schemes: who tells building control about your solar
Solar work is notifiable. A competent person scheme means your installation team notifies, not you.
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.