Solar Panels in South East England
The South East combines some of the UK's highest solar yield with the country's most expensive housing and highest electricity demand, making it one of the strongest regions for solar economics. The grid here splits between SSEN and UK Power Networks depending on county.
Solar generation in South East England
Averaged across South East England's 9 counties, a 4 kWp south-facing system generates around 4,044 kWh per year. At the April 2026 Ofgem price cap of 24.50p/kWh, that covers £991 of electricity you would otherwise buy from the grid — though Isle of Wight runs ahead of that average, at 1030 kWh per installed kWp per year.
A typical 4 kWp system with a 5 kWh battery costs £7,000–£11,000 installed. At current energy prices, most homeowners in South East England break even within 8–10 years, and Smart Export Guarantee (SEG) payments on surplus exported energy reduce that further.
About South East England
Kent's orchards, the Sussex Downs, Hampshire's coastline and Surrey's commuter-belt towns give the South East the UK's most expensive housing alongside some of its best solar yield — a combination that makes this one of the strongest regions for solar economics anywhere in Britain. The grid splits between UK Power Networks (Kent and Sussex) and SSEN Distribution (Hampshire, Surrey, Berkshire, Oxfordshire and the Isle of Wight), so it's worth checking which applies to your county.
Counties we cover in South East England
Not every town in South East England has its own dedicated page yet — but our installer network already covers every county above. Submit a free quote request and we'll match you with MCS-certified installers local to your postcode.
Frequently asked questions — South East England
Do you cover the whole of South East England, or just certain towns?+
We cover every county in South East England — Berkshire, Buckinghamshire, East Sussex, Hampshire, Isle of Wight, Kent, Oxfordshire, Surrey and West Sussex. None of them have a dedicated town page yet, but our installer network reaches every county regardless.
How much electricity will solar panels generate in South East England?+
Averaged across South East England's counties, a 4 kWp south-facing system generates around 4,044 kWh per year — worth roughly £991 at the April 2026 Ofgem price cap of 24.50p/kWh. Yield varies by county: Isle of Wight sees the highest generation in the region at 1030 kWh per installed kWp per year.
Who runs the electricity network in South East England?+
South East England splits across 2 network operators depending on county: SSEN Distribution (Southern) and UK Power Networks (South East). Whichever applies to your postcode, your MCS-certified installer handles the G98/G99 grid notification as part of the installation, at no extra cost.
How long is the payback period for solar in South East England?+
A typical 4 kWp system with a 5 kWh battery costs £7,000–£11,000 installed. On South East England's average 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.
Other UK regions we cover
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