Solar panels in Scotland: grants, planning and what they produce

Solar panels can pay for themselves in Scotland, where each kWp of south-facing panels makes about 853 kWh a year in Glasgow and 903 kWh in Edinburgh (1,019 kWh in London): in our Glasgow example, a 4.5 kWp system costing £7,600, for a home using 3,000 kWh a year, pays back in about 13.6 years with a 12p export tariff that needs Octopus as your electricity supplier, or about 20 years at 6p with any supplier. Home Energy Scotland's grant and loan no longer cover standard solar panels or batteries, but Warmer Homes Scotland can fit them for eligible households, usually at no cost; it installed solar panels in 713 homes in 2025–26. Most roof-mounted panels need no planning permission under Scotland's own rules, and, as elsewhere in Great Britain, a supplier's Smart Export Guarantee tariff can pay you for the electricity you export once your installation has MCS certification or an equivalent.

Solar panels in Scotland at a glance

How much electricity solar panels produce in Scotland

A system's size is its rated peak power in kilowatts (kWp). What lowers your bills is the energy it produces over a year, in kilowatt-hours (kWh). We ran the European Commission's PVGIS model for Scottish cities, for a south-facing roof at 35° with 14% system losses, using satellite data for 2005 to 2023:

Two patterns matter when you compare quotes. Dundee, Edinburgh and Aberdeen do better than Glasgow: Dundee produces about 10% more per kWp, and Edinburgh about 6% more. Output also falls further north, to 810 kWh in Inverness and 762 kWh in Lerwick. And output is strongly seasonal. In Glasgow each kWp makes about 110 kWh in June but 19 kWh in December, and in Lerwick December falls to about 7 kWh. Panels keep working in winter, but about 72% of Glasgow's yearly output comes between April and September.

These are long-term averages: a dull year produces less and a bright one more. Shade, roof direction and pitch change the result for your house, so ask each installer for a written performance estimate for your own roof rather than relying on a city figure.

Is it worth it? A worked example in Glasgow

This is an illustrative estimate from our calculator, not a quote. The household uses 3,000 kWh of electricity a year and is out for half the day, the pattern MCS uses when a household's routine is unknown. The system is 4.5 kWp on a south-facing roof at 35° in Glasgow, with no shade.

First-year value is the bill saving plus export income: £210 + £365 = £575 at 12p with Octopus as your supplier, or £210 + £182 = £392 at 6p. Payback adds up each year's value, with panel output falling 0.4% a year, until it covers the installed price; that is why the 12p Octopus case gives 13.6 years rather than the simple 7,600 ÷ 575 = 13.2. The battery raises the share of your solar electricity used at home from 21% to 57%, so it matters more if you keep your current supplier.

The same home in Edinburgh would generate 4,062 kWh (4.5 × 902.72), use 810 kWh of it and export 3,253 kWh. At 12p, which needs Octopus as your electricity supplier, its first-year value is about £603 (810 × 26.32p = £213, plus 3,253 × 12p = £390) and payback about 12.9 years. At 6p with any supplier it is about £408 (£213 plus 3,253 × 6p = £195), paying back in about 19.3 years. For the method and other cities, see whether solar panels are worth it.

What solar panels cost in Scotland

Scottish installations cost less per kW than in most of England. The Department for Energy Security and Net Zero (DESNZ) publishes average costs of MCS-certified installations in Great Britain, including VAT and excluding batteries. Its regional figures combine homes and non-domestic buildings. For 2025/26 the mean in Scotland, per kW of panel capacity, was:

• £1,767 per kW for systems up to 4 kW, from 18,316 installations, against £2,101 in London and £1,760 in North East England, the only English region lower;
• £1,578 per kW for systems of 4 to 10 kW, from 9,004 installations.

At £1,578 per kW, a 4.5 kWp system comes to about £7,100 (4.5 × £1,578.39 = £7,103), so the £7,600 in our example is on the cautious side. Home Energy Scotland describes a typical Scottish system as around 4 kWp, costing around £6,500. These are averages, not quotes: scaffolding, roof repairs and a battery all add to the price. Our solar panel cost guide explains what an itemised quote should include.

Installed panels and batteries carry 0% VAT when the installer supplies and fits them. The zero rate covers installations up to 31 March 2027; after that the rate is due to return to 5% unless the government extends the relief.

Grants and funding for solar panels in Scotland

Home Energy Scotland Grant and Loan: heat pumps yes, standard panels no

The Scottish Government's main scheme for homeowners mainly funds heating: heat pumps get a grant of up to £7,500 and an optional interest-free loan of up to £7,500, and rural and island homes get £1,500 more. For solar, its funding table lists two technologies, each with a loan of up to £5,000 and no grant:

• solar thermal panels, which heat water;
• hybrid solar PV and water heating, where only PV-T panels, which produce electricity and hot water together, are eligible.

Standard solar PV panels and batteries do not appear in the table. A Home Energy Scotland grant for ordinary solar panels is not on offer, whatever older guides say.

Warmer Homes Scotland: funded panels for eligible households

Warmer Homes Scotland is the Scottish Government's fuel poverty programme, managed by Warmworks. It offers improvements worth £10,000 or more, and in most cases the Scottish Government meets all the costs. Possible measures include insulation, heating and "a home renewables system". In 2025–26 it supported 6,270 homes, fitting solar panels in 713 of them, about one in nine, and batteries in 656.

The main conditions are:

• you own your home or rent it from a private landlord, and have lived there as your main home for at least six months, with exceptions for some medical certificates;
• the home has a poor energy rating, a floor area of 230 m² or less and a council tax band from A to G;
• someone in the household gets a passport benefit such as Universal Credit, Pension Credit Guarantee, Adult Disability Payment or Council Tax Reduction, or is 75 or over with no working heating, or has a DS1500 or BASRiS medical certificate.

A Warmworks assessor decides which measures suit your home, so qualifying does not guarantee solar panels. Private tenants need their landlord's permission, and the scheme does not fund work that has already been done.

Other routes

• ECO4, which energy suppliers fund across Great Britain, closes on 31 December 2026; our grants guide describes the homes where it can include solar.
• The Warm Homes Loan Scheme is a UK scheme, so Scottish homes can use it once lenders offer it. It plans to lend through approved private lenders from September 2026, but on 24 September 2026 the government had named no lender (its lender page was last updated on 17 September).
• Council schemes: Home Energy Scotland can tell you whether your council runs an area-based scheme.

Start with Home Energy Scotland on 0808 808 2282 (Monday to Friday 8am to 8pm, Saturday 9am to 5pm). Its advisers check which schemes you qualify for and refer eligible households to Warmer Homes Scotland.

Planning permission for solar panels in Scotland

Since 24 May 2024, Scotland's own Class 6HA lets you fit panels to a house, a flat or a building containing flats without planning permission, provided they stick out no more than 1 metre and, in a conservation area, stay off the principal elevation and any side elevation that faces a road. Listed buildings, their grounds and World Heritage Sites still need permission. Our planning permission guide covers garages, garden arrays and how Scotland's rules compare with the rest of the UK.

Getting paid for the electricity you export

The Smart Export Guarantee applies in all of Great Britain: licensed suppliers pay you through their own SEG export tariffs, each with its own rate and conditions, and your export tariff need not come from the company that supplies your electricity. Rates only have to stay above zero. Two examples, checked on 24 September 2026: Outgoing Octopus paid 12p per kWh, but only if Octopus also supplies your electricity on a compatible import tariff, while E.ON Next Flex Export paid 6p whichever company supplies you.

To be paid you need an installation certificate, usually from MCS, the Microgeneration Certification Scheme, and a meter that records your exports every half hour, which in practice means a smart meter. Our Smart Export Guarantee guide explains how to apply.

Before you choose an installer

Your Scottish solar checklist

• If someone at home gets a qualifying benefit, is 75 or over without working heating, or has a DS1500 or BASRiS certificate, call Home Energy Scotland on 0808 808 2282 before paying for anything.
• Do not start work you hope a scheme will fund: Warmer Homes Scotland does not pay for completed work.
• Check planning if your home is listed or in a World Heritage Site, or if it is in a conservation area and the panels would go on the front or a side elevation facing a road.
• Export suppliers pay only for installations with an MCS certificate or an equivalent, so choose an MCS-certified installer. Being in MCS no longer means belonging to a consumer code, so ask separately whether the firm is a RECC or HIES member.
• Get each installer's written estimate of what your roof will generate, and check that the quote lists every item and shows 0% VAT.
• Before you sign up for an export tariff, check whether it pays only customers who also buy their electricity from that company.

Our calculator estimates output and savings for your own address in Scotland.

Frequently asked questions

Who is eligible for free solar panels in Scotland?

Mainly households that qualify for Warmer Homes Scotland, which usually meets all the costs. Among other conditions, you must own your home or rent it privately, the home must have a poor energy rating, and someone in the household must get a passport benefit such as Universal Credit, be 75 or over with no working heating, or have a DS1500 or BASRiS certificate. Solar panels are one possible measure; an assessor decides. ECO4 can also fund panels in some cases until 31 December 2026.

Does the Scottish Government give grants for solar panels?

Not to most households. The Home Energy Scotland Grant and Loan offers only a loan of up to £5,000 for PV-T hybrid panels and none for standard solar panels or batteries. Warmer Homes Scotland can include solar panels for eligible households, mainly those getting a qualifying benefit.

Is it worth having solar panels in Scotland?

For many homes, yes. In our Glasgow example, for a home using 3,000 kWh a year, a 4.5 kWp system costing £7,600 pays back in about 13.6 years with a 12p export tariff that needs Octopus as your supplier, or 20.1 years at 6p with your current supplier. Homes in Dundee, Edinburgh and Aberdeen produce more than in Glasgow, and using more of your solar power at home shortens payback.

Do solar panels work in a Scottish winter?

Yes, but they produce far less. A 4.5 kWp system in Glasgow makes about 87 kWh in December (4.5 × 19.36) against about 495 kWh in June (4.5 × 109.99), according to PVGIS. Cold does not hurt panels; short days and low sun reduce their output.

Do I need planning permission for solar panels in a Scottish conservation area?

Usually not, since 24 May 2024. Panels are permitted development in a conservation area unless they go on the principal elevation or a side elevation that faces a road. Listed buildings and World Heritage Sites still need permission.