Why landlords are fitting solar in 2026
The MEES Regulations (Minimum Energy Efficiency Standards) currently require EPC E or better. The government has proposed raising this to EPC C by 2028 for new tenancies and 2030 for all tenancies. A typical 4kW solar + 5kWh battery installation lifts EPC by 1-2 bands — often the difference between E and C, or D and C. Cheaper than external wall insulation, faster than air-source heat pump retrofit, and generates a return.
Landlord economics
Tenant saves on electricity bills (lowers tenant turnover). Landlord receives SEG export income (typically £150-£250/year on a 4kW system without battery, less with battery). Capital allowance: not technically eligible for Annual Investment Allowance on residential property held personally, but limited-company landlords often can claim. Tax position: speak to your accountant — we can supply paperwork.