Solar Panels in Brighton: Costs, Output, and Local Guide

Does solar work in Brighton?

Brighton is one of the best locations in the UK for solar generation. Situated on the south coast of East Sussex, the city sits within the UKPN (UK Power Networks) distribution area and typically yields around 1,050–1,100 kWh per kWp per year — at the top of the UK range.

A 4kWp system in Brighton generates approximately 4,200–4,400 kWh per year — well above a typical household's annual electricity consumption, with a significant export surplus in summer.

Brighton's south-coast position, open exposure, and strong sunshine hours make it a genuinely premium solar location. Even a modestly-sized system here outperforms a larger system in the north.

How much does solar cost in Brighton?

Brighton is an expensive property market and installation costs reflect this. Expect to pay roughly £1,550–£1,800 per kWp, making a 4kWp system around £6,200–£7,200 installed.

Despite higher costs, Brighton's exceptional yield produces some of the best payback periods in the UK — typically 6–8 years for well-sited homes. A battery (typically £3,000–£4,500 for a 5kWh unit) makes very good sense in Brighton, given the large summer surplus.

Your electricity network: UKPN (UK Power Networks)

UK Power Networks covers London, the South East, and East Anglia, including East and West Sussex.

For solar installations:

• Systems up to 3.68kW (single-phase): G98 notification — installer informs UKPN within 28 days of commissioning, no prior approval needed. UKPN's Smart Connect portal handles G98 submissions efficiently
• Systems above 3.68kW (single-phase): G99 pre-approval required before installation
• UKPN is generally considered one of the more efficient DNOs for solar applications

Typical Brighton system

Brighton has a substantial Victorian and Regency heritage, and much of the city's housing stock sits in or near conservation areas:

• Conservation areas: Brighton and Hove has over 30 designated conservation areas covering large swathes of the city — including most of the Victorian terraced streets. In these areas, solar on the principal or side elevation visible from a highway is not permitted development and requires planning permission
• Listed buildings: Regency and early-Victorian properties in central Brighton are frequently listed — listed building consent is required in addition to planning permission, and is not always granted
• Suburban areas: Properties in Hove, Portslade, Hangleton, and Patcham are often outside conservation areas, where standard permitted development rules apply

For properties in conservation areas:

• Rear roof installations not visible from the street are typically still permitted development
• Brighton and Hove City Council has guidance on solar in conservation areas — worth consulting before getting quotes

System sizes for eligible properties: 3–4kWp for terraces; 4–5kWp for semis; 5–6kWp for larger detached homes.

Local grants and schemes

Brighton homeowners may be eligible for:

• ECO4: Available to households on qualifying benefits or with a low EPC rating — active until December 2026
• Warm Homes Local Grant: Delivered through Brighton and Hove City Council — check current eligibility
• Warm Homes Plan: Government successor to ECO4, expected late 2026
• Smart Export Guarantee (SEG): Brighton's exceptional yield makes SEG export income particularly valuable — compare rates carefully, as the difference between providers can be meaningful over a year

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