Farm solar panel cost in the UK (2026)
UK farms & agriculture typically invest £15,000-£400,000 on commercial solar installations ranging from 20-500 kWp. Sector-typical load profile delivers 70% self-consumption and payback in 1-3 years for higher-rate partnerships with FETF grant.
Farm solar cost snapshot
| Typical system size | 20 – 500 kWp |
| 2026 capex range | £15,000 – £400,000 |
| £/Wp | £0.65 – £1.10 (size-dependent) |
| Self-consumption rate | 70% typical |
| Load pattern | variable — high August-October grain drying peak, year-round refrigeration |
| Best grant stack | Farming Investment Fund (FETF) + AIA at partnership IT rates + SEG + (Scotland) SME Loan |
| Typical payback | 1-3 years for higher-rate partnerships with FETF grant |
Post-tax economics for farms & agriculture
For limited companies, 100% Full Expensing reduces effective net cost by 25% in year one. Partnerships and sole traders use AIA at their marginal income tax rate (typically 19-45%).
Farm grant stack in detail
UK farms & agriculture typically access this combination:
- Tax relief: 100% Full Expensing (limited companies) or AIA (partnerships, sole traders)
- Export income: Smart Export Guarantee — typically 3-15p/kWh on exports
- Sector grants: See farms & agriculture sector guide for primary grant routes
- Regional schemes: Growth hub grants, devolved nation funding — see locations hub
Next steps for farms & agriculture
- Read the full farms & agriculture sector guide for grant stack, watch-outs and case studies
- Compare system sizes with the cost-by-size hub
- Run the free eligibility calculator for a personalised funding match
- Browse case studies for farm sector projects
Farm solar cost · FAQs
How much does farm solar cost?
At 2026 prices, UK farms & agriculture typically invest £15,000-£400,000 on commercial solar installations of 20-500 kWp. Net of 100% Full Expensing tax relief for limited companies, that's £11,250-£300,000.
What's the typical farm payback period?
Typical post-tax payback for UK farm solar: 1-3 years for higher-rate partnerships with FETF grant. Strong self-consumption rates (70% typical for this sector) compress payback.
Which grants apply to farms & agriculture?
The typical grant stack for UK farms & agriculture: Farming Investment Fund (FETF) + AIA at partnership IT rates + SEG + (Scotland) SME Loan. See the sector page for full eligibility and worked examples.
How does farm load profile affect solar economics?
Farm load profile is characterised by: variable — high August-October grain drying peak, year-round refrigeration. This delivers 70% typical self-consumption rate — materially affecting payback compared to lower-utilisation sectors.
Get a sized cost estimate for your farm business
Free 60-second eligibility check confirms which grants apply and provides indicative capex and payback for your specific farm property.
Free eligibility check See all sector cost guides