Cost & Finance — Farm Solar Insights

The cost of farm solar in 2026 sits at £600–£900 per kWp installed gross, dropping to £360–£540 per kWp after the Farming Equipment and Technology Fund grant and 100% Annual Investment Allowance. Most UK farms now achieve simple payback in 1.6–2.6 years — materially faster than 2022 figures because grid electricity tariffs have risen 65% while panel prices have fallen 18% in the same window.

This category covers every angle of farm solar economics: gross and net pricing by system size, FETF/AIA stacking, the three principal finance routes (capital, asset finance, PPA), Private Wire PPA economics, lease income from ground-mount, lifetime cost-of-energy comparisons, capital allowances on residual value, and the tax treatment of each finance route. Practical worked examples include 200-head dairies, 16,000-bird poultry units, mixed 500-acre holdings and 200kW+ packhouse installations.

For most farms, the capital purchase route with 100% AIA delivers the lowest lifetime cost-of-energy (around 2p/kWh effective). Asset finance is the next-best route for cash-light operations — repayments structured below projected savings keep the project cash-positive from month one. PPA finance suits ground-mount projects at 200kW+ and tenant-farmer situations where neither party wants the capital exposure.

See our full pricing breakdown, the side-by-side finance comparison, and the PPA mechanics page for the foundation; then dive into the articles below for sector-specific worked examples.