Quick answer
A typical 15 kW solar PV installation on a UK parish church costs £18,000–£30,000 turnkey in 2026, and for most parishes that price carries 0% VAT until 31 March 2027 under the energy-saving materials relief for charitable-use buildings. Where a Buildings for Mission award is won it typically covers 50–70% of capex, leaving the PCC to fund the rest. We do not publish a single net figure, because the award is competitive and the Listed Places of Worship VAT scheme that older guides put underneath it closed on 31 March 2026.
Full answer
Cost per kW for UK church solar in 2026: £1,100–£1,400 per kW for parish churches (specialist heritage premium), £950–£1,200 per kW for halls and unlisted modern free-church buildings, £800–£950 per kW for cathedrals and large schemes. The premium on heritage work (15–30% above standard commercial PV) reflects bespoke fixings, smaller crane and access logistics, more careful protection of fragile fabric, and longer permitting timeline.
Indicative gross capex by system size: 8 kW £10,000–£13,500; 10 kW £12,000–£16,000; 15 kW £18,000–£24,000; 20 kW £22,000–£30,000; 30 kW £32,000–£42,000; 40 kW £42,000–£55,000; 60 kW £58,000–£74,000; 100 kW £90,000–£115,000.
Most UK parish solar projects receive substantial grant funding. A funding stack for a £25,000 listed parish install might combine a Buildings for Mission award, parish reserves, congregational fundraising and a charitable trust grant — and, since 1 February 2024, 0% VAT on the installation rather than a VAT rebate, because the Listed Places of Worship scheme closed on 31 March 2026. We do not print a single net figure, because the grant element is competitive and approximately zero. Lifetime savings over 25 years: £75,000–£100,000.
Payback economics: 11–14 years simple payback on gross capex for Sunday-only churches; 6–9 years for halls with active community use; 4–8 years with grants and combined church+hall metering.
Related questions
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