Solar for Granny Annex

Can you put solar panels on a granny annex?

Solar panels for a granny annex: OPTIONS: (1) PANELS ON THE ANNEX ROOF — if the annex has a suitable roof (south/east/west facing, 10-16m²). Self-contained system. Cost: £3,000-£5,000 for 2-3kW. (2) PANELS ON THE MAIN HOUSE — extend your existing system or share surplus with the annex. Cheaper if main house has roof space. (3) GROUND-MOUNTED — between the house and annex. Cost: £4,000-£7,000. Works if neither roof is suitable. ANNEX CONSUMPTION: typically 1,500-3,000 kWh/yr (heating, cooking, lighting, appliances for 1-2 people). A 2-3kW system generates 1,800-2,800 kWh/yr — covering 60-100% of needs. KEY DECISION: separate meter (annex pays own bills) or shared supply (one meter, one bill). Separate is simpler for solar — each property has its own system.