This page contains affiliate links. If you purchase through them we may earn a small commission at no extra cost to you. Learn more

Solar Panels in Edinburgh: Do They Work and What Do They Cost?

Updated 2026-04-0710 min read

Edinburgh gets solar panels wrong in the popular imagination. The city is not the sun-drenched Mediterranean, but it is not solar-useless either. At around 800 kWh of electricity generated per kWp installed per year, an Edinburgh system produces roughly 80% of what a London system does. On a 4 kWp installation, that is 2,900–3,200 kWh per year — enough to cover most of a typical Scottish household's electricity.

There are genuine differences compared to England, particularly around building regulations, planning, and funding. This guide covers all of them.

Does solar work in Edinburgh?

Yes. Edinburgh receives approximately 850 kWh/m² of annual solar irradiance, yielding around 800 kWh of electricity per kWp installed on a south-facing roof at optimal pitch. Specific Edinburgh benchmarks align with the Scottish central belt range.

In practical terms:

A 4 kWp system generates approximately 2,900–3,200 kWh per year
A 3 kWp system generates approximately 2,175–2,400 kWh per year
Average Scottish household electricity use is broadly similar to the UK average of around 2,700 kWh per year

Two factors partially compensate for Edinburgh's lower irradiance compared to southern England:

Longer summer days. In June, Edinburgh sees 17–18 hours of daylight. Even at lower intensity, those additional hours generate meaningful electricity. A Scottish system's seasonal pattern is different from a southern English one — the summer peak is compressed into longer but slightly lower-intensity days.

Cooler temperatures keep panels efficient. Solar panels lose approximately 0.35% output per degree Celsius above 25°C. Edinburgh's cooler summer temperatures mean panels operate closer to their rated efficiency than on a hot day in London or Bristol. On a warm sunny Edinburgh day, a system there may generate close to the same hourly output as an equivalent London system.

~800

kWh per kWp per year — Edinburgh generates around 80% of London's solar output — less, but not the negligible amount that s

Learn more

How much does solar cost in Edinburgh?

Edinburgh, and Scotland generally, has the highest solar installation costs in the UK. DESNZ data puts the average installed cost in Scotland at approximately £1,734 per kWp — higher than the England average of £1,591/kWp, and significantly above Wales at £1,508/kWp.

System size	Typical installed cost (Edinburgh)	Typical annual generation
3 kWp (7 panels)	£5,000–6,500	~2,175–2,400 kWh
4 kWp (9 panels)	£6,500–8,500	~2,900–3,200 kWh
5 kWp (11 panels)	£8,500–10,000	~3,625–4,000 kWh

All prices include 0% VAT on supply-and-install, valid to 31 March 2027.

The higher cost and lower yield means Edinburgh's payback period is typically 1–2 years longer than southern England. However, rising electricity prices, the availability of interest-free loans, and Edinburgh's strong property values mean solar can still make financial sense.

Housing stock and sizing in Edinburgh

Edinburgh's housing stock includes Georgian and Victorian tenements (often flats), Victorian terraces, 1920s–1960s semis, and a substantial stock of modern properties.

Tenement flat: Class 4A permitted development now applies in Scotland for flats — but you may still need factoring or residents' agreement for a shared building. Speak to your factor (managing agent) first
Victorian terraced house: typically 3–4 kWp
1930s semi-detached (Morningside, Newington, Corstorphine): typically 4–5 kWp
Modern detached: typically 5–6 kWp

Edinburgh's Old Town and New Town are UNESCO World Heritage Sites, and large parts of central Edinburgh are conservation areas or contain listed buildings. Planning permission may be required for systems in these areas — check with Edinburgh City Council's planning department.

Funding in Edinburgh: loans, not grants

Home Energy Scotland (HES) loans

This is the most important thing to understand about solar funding in Scotland: HES solar grants stopped in June 2024. Since then, Home Energy Scotland has offered loans only.

The HES loan for solar is:

Interest-free (0% interest rate)
Up to £15,000 per property
Repaid over up to 10 years
Available for owner-occupiers in Scotland
Administered through Energy Saving Trust's Home Energy Scotland service

An interest-free loan significantly reduces the effective cost of a solar installation. On a £7,500 Edinburgh installation, borrowing the full amount interest-free over 10 years costs £750/year in repayments — and the system starts generating savings from day one.

How to apply: Contact Home Energy Scotland on 0808 808 2282 or at homeenergyscotland.org. An advisor will discuss your property and circumstances before loan applications are processed.

Warmer Homes Scotland

Warmer Homes Scotland provides free energy efficiency improvements for households living in or at risk of fuel poverty. If your household is on qualifying benefits and your EPC rating is D or below, you may be eligible for free energy efficiency measures. Solar panels can be included if other measures are also being installed. Contact Home Energy Scotland to discuss eligibility.

ECO4

ECO4 (the GB-wide Energy Company Obligation scheme) also applies in Scotland for eligible households, subject to the same conditions as elsewhere: qualifying heating measures must be installed, and income/EPC criteria must be met.

Your DNO: SP Energy Networks (SPEN)

SP Energy Networks (SPEN) is the Distribution Network Operator for central Scotland, including Edinburgh, Glasgow, and surrounding areas. (Parts of southern Scotland and northern England are covered by SSEN — Scottish and Southern Electricity Networks — but Edinburgh falls under SPEN.)

For systems up to 3.68 kW per phase (the G98 threshold): SPEN uses a Fit and Inform process. Your installer submits a G98 notification after installation.

For larger systems: G99 pre-approval required before installation. In some constrained areas of the Scottish grid, G99 processing times can be longer than in England — allow 15–25 working days and potentially longer.

Finding your MPAN: Your 21-digit Meter Point Administration Number appears on your electricity bill. Your installer needs this.

Planning and building regulations in Scotland

Scotland's planning and building regulations for solar differ from England in important ways:

Planning (permitted development): The 2024 Planning Circular 2/2024 removed the 50 kW capacity cap on permitted development for solar. Scotland now allows larger solar systems under PD than England. The maximum projection is 1 metre above the roof plane. Class 4A PD now applies for flats — unlike England, which excludes flats from PD rights for solar.

Building regulations: Scotland uses Standards 4.5 and 4.6, not England's Part P. The certification route is through SELECT (Scottish Electrical Certifying Organisation), not NAPIT, NICEIC, or other Part P bodies. Your installer must be SELECT-registered or use a local authority building standards inspector.

Conservation areas and listed buildings: Edinburgh has extensive conservation areas. If your property is within one, check with Edinburgh City Council's planning team before proceeding.

For a full treatment of Scottish solar planning and building regulations, see our complete guide to solar panels in Scotland.

Typical Edinburgh solar system

For a standard 1930s three-bed semi-detached in Edinburgh with a south-facing rear roof:

System size: 4 kWp
Panel count: 9 × 450W panels
Roof space required: approximately 18 m²
Annual generation: approximately 2,900–3,200 kWh
Estimated installed cost: £6,500–8,500
Available financing: HES interest-free loan up to £15,000
Estimated annual savings: £450–600 (self-consumption + export income)
Payback period: approximately 10–14 years (shorter with HES loan reducing effective cost of capital)

Cooler days can surprise you

On a clear winter day in Edinburgh, solar panels operate very efficiently because they are cold. Don't dismiss winter generation entirely — a 4 kWp Edinburgh system still produces around 2,500–3,000 kWh in the October–March period across the full winter half-year. The seasonal distribution is just more skewed toward summer than southern England.