Northern Ireland
Solar Panels in Down
We connect homeowners across Down with MCS-certified solar installers. A mild coastal county stretching from the Mourne Mountains to Strangford Lough, with slightly higher solar yield than inland Northern Ireland.
Solar generation in Down
Using PVGIS irradiance data for Northern Ireland, a 4 kWp south-facing array in Down produces roughly 3,220 kWh per year. At the April 2026 Ofgem price cap of 24.50p/kWh, that covers £789 of electricity you would otherwise buy from the grid.
On top of bill savings, surplus energy exported to the grid earns Smart Export Guarantee (SEG) payments — typically 4–6p/kWh with the main suppliers, or up to 15p/kWh with specialist tariffs like Octopus Outgoing.
A typical 4 kWp system with a 5 kWh battery costs £7,000–£11,000 installed across Down. At current energy prices, most homeowners break even within 10–12 years.
Local grid: NIE Networks
Anywhere in Down, the grid connection for a new system goes via NIE Networks. Smaller systems (up to 3.68 kW) just need a G98 notification, while bigger ones need G99 approval — allow up to 45 working days for that. Either way, it's your MCS-certified installer's job, not an added fee.
About Down
This mild coastal county sees slightly higher solar yield than inland Northern Ireland. The Mourne Mountains and Strangford Lough sit within a county that's also become known for Game of Thrones filming locations.
Coverage across Down
No single town in Down has its own page here yet, but that doesn't limit coverage — our installer network reaches Newry, Bangor and Downpatrick and everywhere else in the county. Submit a quote request below and we'll take it from there.
Frequently asked questions — Down
What parts of Down does your installer network reach?+
We're a matching service covering the whole of Down, including Newry, Bangor and Downpatrick — plus every smaller town and village in between. We connect you with MCS-certified installers who work across the county, whether or not your specific town already has its own dedicated page on this site.
How much electricity will solar panels generate in Down?+
A 4 kWp south-facing system in Down generates roughly 3,220 kWh a year, based on PVGIS irradiance data for Northern Ireland — worth roughly £789 at the April 2026 Ofgem price cap of 24.50p/kWh. A mild coastal county stretching from the Mourne Mountains to Strangford Lough, with slightly higher solar yield than inland Northern Ireland.
Who is the electricity network operator in Down?+
Down sits on the NIE Networks network. Smaller systems (up to 3.68 kW) only need a G98 notification; larger ones need G99 approval, which can take up to 45 working days — your installer takes care of the paperwork either way, at no extra cost.
How long is the payback period for solar in Down?+
A typical 4 kWp system with a 5 kWh battery costs £7,000–£11,000 installed. On Down's 805 kWh-per-kWp yield and current energy prices, most homeowners break even within 10–12 years, and Smart Export Guarantee (SEG) payments on surplus exported energy reduce that further.