Indicative 4 kWp install in Bournemouth: £6,750–£7,900. Region: UK average (×0.98). Annual irradiance: ~1010 kWh/kWp.
What Bournemouth homeowners actually pay
Bournemouth is one of the easiest mainland UK cities to install solar in: high irradiance, plenty of south-facing inter-war and post-war semis, and few conservation restrictions outside Westbourne and East Cliff. A typical 4 kWp install lands £5,400–£6,800, generates around 3,880 kWh per year, and pays back in 7–9 years. Larger detached homes in Talbot Woods or Canford Cliffs often fit 5–6 kWp with battery for £9,500–£12,000.
Local notes for Bournemouth
South-coast irradiance ~970 kWh/kWp/yr — among the best on the mainland.
Lots of inter-war and post-war semis with simple, accessible pitched-tile roofs.
Pockets of conservation area around Westbourne and East Cliff — check before specifying front-elevation panels.
DNO is SSEN — G99 sign-off typically 5–7 weeks across BH postcodes.
Field notes
Generation ~3,880 kWh/yr from a typical 4 kWp south-facing array.
Are there any planning restrictions in Bournemouth?
Most BH postcodes are unrestricted permitted-development. The exceptions are pockets of conservation area in Westbourne, East Cliff and around Meyrick Park — front-elevation installs there usually need a planning application to BCP Council.
What system size suits a typical Bournemouth home?
4–5 kWp on most inter-war semis in Winton, Charminster and Boscombe. Larger detached homes in Talbot Woods or Canford Cliffs often fit 5–6 kWp with battery.