Solar Panels for Farms across Wales

Wales farm solar

Welsh farming — hill livestock, Carmarthenshire dairy, Pembrokeshire mixed — benefits from the Welsh Farm Business Grant scheme. NGED and SP Energy Networks share grid coverage. Brecon Beacons, Snowdonia and Pembrokeshire Coast National Parks require carefully designed, rooftop-led solutions in many areas.

Farming landscape across Wales

Welsh agriculture is overwhelmingly livestock — sheep and beef on hill and upland, dairy in the lowlands of Carmarthenshire, Pembrokeshire and Anglesey. Powys and Gwynedd are the centre of Welsh hill farming. Soft fruit and horticulture concentrated around the Vale of Glamorgan.

Grants and funding routes

Welsh Farm Business Grant Energy (FBG-E) — 40% capital, £12k-£100k range, quarterly windows. Sustainable Production Grant for select schemes. Glastir Capital Works for biodiversity-linked projects. Free pre-application advice via Farming Connect.

Read the full UK farm solar grants overview and the 2026 grant application calendar for deadline-by-deadline planning.

Planning and protected landscapes

Eryri (Snowdonia) and Pembrokeshire Coast National Parks. Bannau Brycheiniog (Brecon Beacons) National Park. AONB designations across the Gower, Llyn Peninsula, Wye Valley and Clwydian Range. Welsh National Parks have notably stricter planning than English equivalents.

Most Wales rooftop installations on existing agricultural buildings qualify as permitted development under Class A or Class B of the GPDO. Ground-mount and listed buildings need full planning. Your installer should handle the application — see planning permission for farm solar.

Grid connection — NGED / SP Energy Networks

NGED (south and mid Wales) plus SP Manweb (north Wales). 10-14 weeks G99 typical. Constraint hotspots around the Heads of the Valleys and parts of Anglesey.

Every project we deliver in Wales goes through NGED / SP Energy Networks. A specialist installer manages G98 (sub-16A/phase) and G99 (commercial scale) applications end-to-end as part of the quote — see our 8-stage installation process for typical timings.

Climate and solar irradiance

Wettest UK climate after Cumbria. Salt-laden Atlantic air requires marine-grade mounting within 5km of coast. Snow loading on hill farms above 300m elevation.

Annual irradiance: 980 kWh/m²/yr — Anglesey leads with 1,540 sunshine hours/year (highest in Wales).. This translates to 833 kWh per kWp of installed capacity per year for a south-facing 30° pitched roof — the figure we model every Wales farm quote against.

Counties we cover across Wales

9 counties served, with regional installation team dispatched from our nearest hub:

Typical farm solar projects across Wales

• Small farm (sub-50 kW): £14k-£40k gross / £8k-£24k net after AIA + grant. Payback 2.0-3.0 years.
• Medium farm (50-150 kW): £35k-£105k gross / £19k-£56k net. Payback 1.6-2.4 years.
• Large farm (150-500 kW): £90k-£330k gross / £48k-£198k net. Payback 1.5-2.0 years.
• Estate-scale (500 kW+): £270k+ gross / £162k+ net. Payback 1.5-1.8 years. Often paired with PPA finance.

See full pricing by system size for the breakdown by farm type and system tier.

Most popular farm types for solar in Wales

• • Dairy farms — 30-250 kW typical, 5-year payback
• • Arable farms — 50-500 kW typical, 4.5-year payback
• • Poultry farms — 50-300 kW, fastest UK payback at 3.5 years
• • Livestock farms — 20-100 kW typical, 5.5-year payback
• • Mixed farms — 30-250 kW, 5-year payback
• • Horticultural & glasshouse — 100-1,000 kW, 4-year payback

Related reading for Wales farmers

• • Farm solar pricing 2026 — costs by system size
• • UK farm solar grants 2026
• • Agrivoltaics — solar + grazing + SFI payments
• • The biggest UK solar farms — regional breakdown
• • Farm solar maintenance — keep your asset performing