Solar panels in Belfast
£3,290 to £10,950 installed, 1,374 hours of sun a year, and 2,437 installations already in the council area.
What a system costs in Belfast
3kWp
£3,290–£4,850
Saves up to £387 a year. Pays back in about 11 years.
4kWp (most common)
£5,430–£7,000
Saves up to £624 a year. Pays back in about 10 years.
6kWp
£7,550–£10,950
Saves up to £951 a year. Pays back in about 10 years.
Source: Home Energy Quotes Cost Index, costs modelled March 2026, savings at the October to December 2026 price cap. Prices are estimates and include installation and VAT. Actual costs may vary.
Belfast in numbers
Published statistics for the Belfast council area, not our estimates.
At the end of 2025 there were 2,437 solar PV installations in the Belfast council area, about 16.3 for every 1,000 households, with 13.7 MW of capacity between them. The count covers every size of installation, on homes and businesses. The median EPC energy score for homes in the Belfast council area is 68, which is band D.
| Belfast council area | Figure | Source |
|---|---|---|
| Solar PV installations (all sizes) | 2,437 (16.3 per 1,000 households) | DESNZ, end of 2025 |
| Median EPC energy score | 68 (band D) | Department for Communities, EPCs to March 2023 |
| Households on mains gas heating only | 70.9% | Census 2021, NISRA |
| Electricity network operator | NIE Networks (Northern Ireland) | NIE Networks |
Belfast is served by NIE Networks, the electricity network operator for Northern Ireland. Solar panels have to be registered with the network operator. Your installer normally does this: smaller systems are notified after installation, and larger ones need approval before work starts.
These are published official statistics for the Belfast council area, which covers Belfast, not Home Energy Quotes estimates. Sources checked 6 October 2026.
Is Belfast a good place for solar panels?
Belfast receives an average of 1374 hours of sunshine per year — below the UK average of 1,493 hours, though solar panels still generate meaningful power. Combined with Northern Ireland’s energy prices tracking the UK average, solar panels installations here may offer good value (individual results will vary).
Belfast has a population of 345,000, and the area falls within the Northern Ireland region. We recommend getting at least 3 quotes to compare prices.
Find Installers in Belfast
We recommend getting at least 3 quotes from qualified installers before making a decision. Check reviews, ask for local references, and make sure warranties are clearly stated in writing.
What to check before hiring an installer in Belfast
- Qualifications — check the installer holds relevant qualifications and certifications for solar panels before signing any contract
- Local references — ask for completed jobs in Belfast or County Antrim
- Reviews — check online reviews before committing
- Warranty — product and workmanship warranties should be clearly stated in writing
- 3 quotes minimum — we recommend comparing at least three quotes to ensure you get a fair price
Questions about solar panels in Belfast
How much do solar panels cost in Belfast?
How many solar panel installations are there in Belfast?
Is there a grant for solar panels in Belfast?
How long is the payback period in Belfast?
Do I need planning permission in Belfast?
How do I find a good installer in Belfast?
Get quotes for your roof in Belfast
Up to three approved installers who cover Belfast may contact you. Free, no obligation.
Belfast on the map
Solar Panels in nearby towns
Last reviewed: . Costs are modelled estimates from the Home Energy Quotes Cost Index — see how we calculate them. Grant rates are checked against GOV.UK.