West Lothian, Scotland
Solar and batteries in West Lothian, sized to your roof.
Twelve panels (6.36 kWp) here make about 5,380 kWh a year for £6,360 installed, designed around your roof on a free 30-minute video call.
Get my free quote
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.
or call 07782 219224
- Free 30-minute video design call
- Priced before anyone visits
- Installed by our MCS-certified, fully insured teams
Sunlight in West Lothian, in numbers
From 19.5 kWh per kWp in December to 116.9 in May: a roof in West Lothian makes 6 times as much in its best month as in its darkest, and 846 kWh per kWp across the year.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 24.3 |
| February | 42.5 |
| March | 69.3 |
| April | 102 |
| May | 117 |
| June | 107 |
| July | 108 |
| August | 94.3 |
| September | 75.9 |
| October | 51.9 |
| November | 34.4 |
| December | 19.5 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
Our GB average is 925 kWh per kWp a year, the mean of the 85 county PVGIS estimates we publish; at 846, West Lothian is 9% below it.
How West Lothian compares
West Lothian ranks joint 65th of the 85 counties we track for solar yield, 1% above the Scotland average of our estimates. Lower light changes the strategy rather than the answer: pair the array with off peak charging at 8.5p and the model still finds £780 a year on a typical 12 panel system, most of it from cutting 26.32p imports.
Every figure here assumes a clear, south-facing roof at 35 degrees in the middle of West Lothian. Yours will differ; the calculator below lets you test panels, batteries and export rates first.
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.
Generation from PVGIS v5.2 (European Commission JRC, SARAH3), retrieved August 2026 for a representative point in West Lothian (55.9302, -3.5819), assuming 1 kWp, 14% system loss, 35 degree pitch, due south. Import valued at 26.32p/kWh (Ofgem price cap average, Oct to Dec 2026); off-peak charging at 8.5p/kWh where used (a supplier's published off-peak rate, checked September 2026); export at the scenario you pick, from the dated tariff table. Prices are installed pricing, August 2026, standard installations; 530W LONGi panels at £1,000 per kWp. Estimates for illustration, not a quote: your free design call prices your actual roof.
The network operator for West Lothian
On NESO's licence-area map, the middle of West Lothian falls in South and Central Scotland, which SP Energy Networks operates, and so do all the towns we cover in the county.
For a typical home the paperwork is light: a system of up to 3.68kW per phase goes through G98, which means SP Energy Networks is notified within 28 days of switch-on rather than asked beforehand.
Larger systems go through G99 instead, applied for before installation. On timing: 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 SP Energy 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 West Lothian
A heat pump in West Lothian
In December, the darkest month here, 12 panels in West Lothian make about 120 kWh. That is when a heat pump runs hardest, so its running cost in West Lothian comes down to the tariff and the flow temperature rather than the roof.
In Scotland, Home Energy Scotland offers a grant of up to £7,500 towards a heat pump, an optional interest-free loan of up to £7,500 on top, and £1,500 more for rural and island homes (Home Energy Scotland, checked 28 September 2026).
Charging an EV in West Lothian
Summer is where a car earns its place. In May, 12 panels in West Lothian make about 740 kWh, against roughly 70 kWh a typical home uses in daylight that month on our calculator's typical-use settings, so there is surplus a smart charger can put into the car instead of exporting it.
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 across West Lothian
Every system is designed around your roof on the free call before anything is fitted.
Common questions about solar in West Lothian
How much electricity do solar panels make in West Lothian?
About 5,380 kWh a year from 12 panels (6.36 kWp), on PVGIS satellite data for West Lothian: 846 kWh per kWp, or 2.32 peak sun hours a day on average. May is the strongest month, at about 740 kWh.
What does a typical solar system cost in West Lothian?
Solar is priced at £1,000 per kWp installed wherever you live, so a 12-panel, 6.36 kWp system costs £6,360 in West Lothian, exactly as it would anywhere else, before any battery. Location changes what the system makes, not what it costs: here that is about 5,380 kWh a year. The final figure comes from your roof on the design call.
Which DNO covers West Lothian, and what does it need from me?
SP Energy Networks covers West Lothian. A home system of up to 3.68kW per phase is notified to SP Energy Networks within 28 days of commissioning under G98, and nothing waits on approval. Larger outputs need a G99 application before work starts. 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 SP Energy Networks as it does every network operator.
What happens to the solar I do not use in West Lothian?
Around £533 a year at 12p per kWh, for the roughly 4,444 kWh a 12-panel system in West Lothian exports with typical use. Rates vary by supplier and some need their own tariff; the export rates table is dated and sourced.
How much solar does West Lothian get in December?
December is the low point: about 120 kWh from a 12-panel system in West Lothian, on PVGIS data, rising to 740 kWh in May. From November to February the same system makes about 770 kWh in total, which is why a battery charged off-peak does more of the work in winter.
Towns we cover in West Lothian
6 West Lothian towns have their own page, each with PVGIS figures, a network operator and a monthly curve for its own location.
Nearby in Scotland
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 West Lothian homeowners
The same guidance we would talk through on your call, written down and sourced.
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.
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 →The main home EV chargers, compared on what actually differs
Eight popular UK home chargers on cable, connectivity, warranty and tariff integration.
Read the guide →Which homes suit a heat pump, and which need work first
The trial data says no property type is unsuitable. Design quality decides the outcome.
Read the guide →The price cap explained, and what it does to solar payback
The cap limits unit rates, not bills. That changes what solar payback means.
Read the guide →What MCS certification actually is, and why your export payments depend on it
The badge that decides whether your solar earns export payments. It cannot be added later.
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.