Wales
Solar Panels in Gwynedd
We connect homeowners across Gwynedd with MCS-certified solar installers. Snowdonia dominates this mountainous north-west Wales county, so shading and steep terrain are bigger factors here than almost anywhere else in Wales.
Solar generation in Gwynedd
Based on PVGIS irradiance data for Wales, a 4 kWp south-facing system in Gwynedd generates around 3,520 kWh per year. At the April 2026 Ofgem price cap of 24.50p/kWh, that covers £862 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 Gwynedd. At current energy prices, most homeowners break even within 9–11 years.
Local grid: SP Energy Networks (SP Manweb)
Solar installations across Gwynedd connect to the grid via SP Energy Networks (SP Manweb). Systems up to 3.68 kW require a G98 notification; larger systems need G99 approval, which can take 45 working days. Your MCS-certified installer handles both — it's included in the installation package, not an extra cost.
About Gwynedd
Snowdonia's mountainous terrain means shading and steep roofs are bigger factors here than almost anywhere else in Wales. Snowdon (Yr Wyddfa), Wales's highest peak, and Caernarfon Castle sit within a county whose economy still carries the legacy of slate quarrying around Blaenau Ffestiniog.
Coverage across Gwynedd
We don't have a dedicated page for an individual Gwynedd town yet, but our installer network already covers Bangor, Caernarfon and Pwllheli and every other town and village across the county — submit a quote request below and we'll match you with MCS-certified installers local to your postcode.
Frequently asked questions — Gwynedd
Which towns and areas in Gwynedd do you cover?+
We're a matching service covering the whole of Gwynedd, including Bangor, Caernarfon and Pwllheli — 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 Gwynedd?+
Based on PVGIS irradiance data for Wales, a 4 kWp south-facing system in Gwynedd generates around 3,520 kWh per year — worth roughly £862 at the April 2026 Ofgem price cap of 24.50p/kWh. Snowdonia dominates this mountainous north-west Wales county, so shading and steep terrain are bigger factors here than almost anywhere else in Wales.
Who is the electricity network operator in Gwynedd?+
SP Energy Networks (SP Manweb) manages the local distribution network across Gwynedd. Systems up to 3.68 kW need a G98 notification; larger arrays need G99 approval (up to 45 working days) — your MCS-certified installer files both as part of the installation, at no extra cost to you.
How long is the payback period for solar in Gwynedd?+
A typical 4 kWp system with a 5 kWh battery costs £7,000–£11,000 installed. On Gwynedd's 880 kWh-per-kWp yield and current energy prices, most homeowners break even within 9–11 years, and Smart Export Guarantee (SEG) payments on surplus exported energy reduce that further.