South West England
Solar Panels in Wiltshire
We connect homeowners across Wiltshire with MCS-certified solar installers. Open Salisbury Plain and chalk downland give Wiltshire wide, unobstructed skylines across most of the county, from Swindon to Salisbury.
Solar generation in Wiltshire
Drawing on PVGIS irradiance data for South West England, a south-facing 4 kWp system in Wiltshire is expected to generate around 4,040 kWh per year. At the April 2026 Ofgem price cap of 24.50p/kWh, that covers £990 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 Wiltshire. At current energy prices, most homeowners break even within 8–10 years.
Local grid: National Grid Electricity Distribution (South West)
Across Wiltshire, solar installations connect to the grid via National Grid Electricity Distribution (South West). A G98 notification covers anything up to 3.68 kW; larger systems need G99 approval instead, which can take up to 45 working days. Both are handled by your MCS-certified installer as standard, at no extra cost.
About Wiltshire
That same open downland gives Wiltshire wide, unobstructed skylines across most of the county, from Swindon to Salisbury. Stonehenge and Avebury's stone circles sit on the open chalk downland of Salisbury Plain, much of which is still military training land.
Coverage across Wiltshire
There isn't a standalone page for a specific Wiltshire town yet, but coverage already extends across the whole county, including Salisbury, Swindon, Trowbridge and Chippenham — submit a quote request below and we'll match you with an MCS-certified installer near your postcode.
Frequently asked questions — Wiltshire
Do you cover every town in Wiltshire, or just the bigger ones?+
We're a matching service covering the whole of Wiltshire, including Salisbury, Swindon, Trowbridge and Chippenham — 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 Wiltshire?+
PVGIS irradiance figures for South West England put a 4 kWp south-facing system in Wiltshire at around 4,040 kWh of generation a year — worth roughly £990 at the April 2026 Ofgem price cap of 24.50p/kWh. Open Salisbury Plain and chalk downland give Wiltshire wide, unobstructed skylines across most of the county, from Swindon to Salisbury.
Who is the electricity network operator in Wiltshire?+
Across Wiltshire, the grid is run by National Grid Electricity Distribution (South West). A G98 notification covers systems up to 3.68 kW, while anything larger needs G99 approval (up to 45 working days) — both are handled by your MCS-certified installer as part of the job, not billed separately.
How long is the payback period for solar in Wiltshire?+
A typical 4 kWp system with a 5 kWh battery costs £7,000–£11,000 installed. On Wiltshire's 1010 kWh-per-kWp yield and current energy prices, most homeowners break even within 8–10 years, and Smart Export Guarantee (SEG) payments on surplus exported energy reduce that further.