Reviewed and updated June 2026 by the SolarPanelsForFarms.uk team.
Agrivoltaics — also called solar sharing or dual-use solar — is the practice of designing a solar PV installation so the land beneath the panels remains productive for grazing, pollinator habitat or even compatible crop cultivation. It is the most credible answer to the food-vs-energy land debate that has politicised large UK solar farms since 2023, and it has become commercially attractive for UK farmers in 2026 thanks to Sustainable Farming Incentive (SFI) payments that stack on top of solar generation income.
Is agrivoltaics actually used in the UK?
Yes — and the evidence base is now solid rather than speculative. A CMS Law expert guide (2025) reported around 15 commercial operational agrivoltaic projects in the UK, most of them small at roughly 1–5 MW. Sheep grazing under panels is the most-evidenced use-case: a 2025 Applied Energy study (Neesham-McTiernan et al.) treats UK solar grazing as already deployed and models national land potential for dual-use solar.
The national-scale picture is just as supportive. University of Sheffield research (February 2025) found agrivoltaics could help the UK hit its solar PV targets without sacrificing farmland, naming East and South-East England (Cambridgeshire, Essex, Lincolnshire) as optimal regions. The gov.uk Solar Roadmap (June 2025) explicitly recognises dual-use and agrivoltaic solar as part of the route to the UK's 2030 solar ambition.
Why agrivoltaics matters in 2026
Defra's guidance on "best and most versatile" (BMV) agricultural land steers large ground-mount solar away from Grade 1, 2 and 3a land, so most solar-only farms must site on Grade 3b or worse. Agrivoltaics turns the question on its head: if the land remains agriculturally productive, the food-vs-energy trade-off largely dissolves. Modern elevated PV arrays leave most of the land usable for grazing, biodiversity ground cover or specific shade-tolerant crops, which is exactly the framing the Solar Roadmap and the Sheffield modelling reward.
Three practical UK agrivoltaic models
1. Sheep grazing under elevated panels
Standard ground-mount frames with 0.8–1.2 m clearance below the lower edge of the panels. Sheep — typically hardy, low-stature breeds such as Welsh Mules, Romney, Shetland or Suffolk-cross — graze freely between the rows, keeping vegetation down and removing the need for mechanical mowing. Stocking density is modestly reduced versus equivalent open pasture because of the panel footprint and access spacing, so there is a small grazing-output trade-off offset by significant solar income. This is the most widely proven UK model.
2. Pollinator-friendly wildflower ground cover
Solar arrays planted with native UK wildflower seed mixes — Yellow Rattle, Common Knapweed, Birdsfoot Trefoil, Field Scabious. This generates strong biodiversity outcomes, helps deliver mandatory Biodiversity Net Gain (in force since 2024 under the Environment Act), can qualify for SFI pollinator and wildlife actions, and reduces grass-mowing costs to essentially zero. Independent post-construction biodiversity surveys at solar sites have generally recorded higher pollinator and invertebrate counts than the previous intensive arable use.
3. Elevated arrays with shade-tolerant crops
Continental European agrivoltaics — common in Germany, Italy and France — uses panel arrays elevated 2.5–4 m above ground level to allow cropping below. UK trials are underway with soft fruits (raspberries, blackcurrants) and salad/leaf production. Capital cost is materially higher than standard ground-mount (typically a 15–30% structural premium and fewer kWp per acre) but justified where high-value protected cropping is the realistic alternative land use.
Solar grazing in the UK
Solar grazing — running livestock to manage vegetation on and between solar arrays instead of mowing — is the most evidenced and most widely deployed agrivoltaic practice in the UK, which is why it is the realistic starting point for most farms. The 2025 Applied Energy spatial study and Sheffield's modelling both single out sheep grazing under panels as already-working, UK-climate-proven dual use.
Which sheep breeds? Hardy, low-stature breeds that will not damage cabling or rub against the frames are preferred — Welsh Mules, Romney, Shetland and Suffolk-cross are commonly used. Larger, taller or boisterous breeds are generally avoided. Frames are set with roughly 0.8–1.2 m clearance beneath the lower panel edge so ewes can move and graze freely between rows.
Stocking and welfare. Expect a modest reduction in stocking versus equivalent open pasture, because the panel footprint and access spacing take some grazing area out of play — model this as a small productivity trade-off rather than a fixed national figure, since it varies by layout and grass quality. The welfare upside is real: panels give sheep shelter from sun, wind and driving rain, and partial shade keeps the sward greener for longer in dry spells.
Who manages the grazing? Either the host farmer runs their own flock, or a neighbouring grazier takes a grazing licence — a common arrangement on larger developer-built sites that keeps land in genuine agricultural use and supports the planning and SFI case. Fencing, water and a simple grazing plan are the practical essentials. See our sheep farm solar guide for breed-level detail.
What agrivoltaics costs in the UK (per kWp)
Cost is the question that decides most projects, so anchor it to real house figures rather than headline numbers. Standard farm ground-mount solar runs roughly £600–£900 per kWp gross before grants in 2026; well-sited rooftop farm solar is cheaper still per kWp and pays back fastest (around 2–4 years). Agrivoltaics carries a 15–30% structural premium on top of the ground-mount figure — the elevated or wider-spaced frames cost more, and you fit fewer kWp per acre — and ground-mount/solar-farm economics differ from rooftop, so payback is longer.
| System type | Gross cost (£/kWp) | kWp per acre* | Indicative payback | Best-fit farm |
|---|---|---|---|---|
| Rooftop (barn / shed) | £600–£900 | n/a (roof area) | 2–4 yrs | Any farm with large roofs & high day-use |
| Standard ground-mount (solar-only) | £600–£900 | ~320–400 kWp | Longer than rooftop | Lower-grade land, no continuing crop use |
| Sheep-grazing agri-PV | £700–£1,050 | ~240–290 kWp | Longer (offset by SFI + grazing) | Livestock farms keeping land in grazing |
| Elevated crop agri-PV | £800–£1,150 | ~200–250 kWp | Longest (high-value cropping case) | High-value soft fruit / salad growers |
*kWp per acre is an indicative planning figure for layout comparison only (≈0.8–1.0 MW/ha solar-only vs ≈0.5–0.7 MW/ha agri-PV) — actual density depends on panel choice, row spacing and access requirements. Gross costs are pre-grant 2026 estimates; net cost after typical grant support is materially lower. Confirm a fixed price with a site-specific quote.
Illustrative worked example (model only — not a specific client)
The figures below are an illustrative model to show how the income streams stack — they are not a real project and are not a guarantee of returns. Run your own site-specific numbers before deciding.
| Income / cost stream (modelled) | Indicative Year 1 |
|---|---|
| Solar generation savings (≈1 MW, high self-consumption) | Largest stream — varies with tariff & self-use |
| SEG export income on surplus | Secondary stream (depends on SEG tariff) |
| Stacked SFI / stewardship actions (per ha) | Adds per-hectare income — rate per SFI handbook |
| Reduced grazing output (opportunity cost) | Small deduction |
| Net effect | Generation savings + SFI typically outweigh the grazing trade-off |
The exact figures turn on your irradiance, self-consumption percentage, electricity and SEG tariffs, and which SFI actions you qualify for — all of which are site-specific and (for SFI) updated periodically at gov.uk. Treat this as a structure to model against, not a quoted return.
Planning permission for agrivoltaics
Most ground-mount solar above small thresholds needs full planning permission, and agrivoltaics is no exception — but the dual-use design is genuinely easier to consent than solar-only. Three reasons carry weight with planners: (1) the land stays agriculturally productive, which directly answers the BMV land objection that blocks solar-only schemes; (2) biodiversity ground cover helps deliver mandatory Biodiversity Net Gain (Environment Act, in force 2024); and (3) the gov.uk Solar Roadmap (June 2025) recognises agrivoltaics within national solar policy, giving the principle clear policy support.
That said, consent is never automatic, especially on better-grade land — a credible, evidenced continuing agricultural use (a real grazing or cropping plan, not just a stated intention) is what strengthens the case. See our guide to planning permission for farm solar and solar on agricultural land planning rules for the detail.
SFI payment stacking — earnings per hectare
The commercial appeal of agrivoltaics is the income stack: generation savings and SEG export plus Sustainable Farming Incentive (SFI) actions on the land beneath and around the panels, minus a modest grazing trade-off. Eligible actions can include pollinator and wildflower ground cover, managed grassland and hedgerow management around the perimeter. SFI action rates are set in the current SFI handbook and change periodically, so confirm the live per-hectare figures and current scheme status at gov.uk before relying on any number.
- ✓ Pollinator / wildflower ground cover actions — per-hectare annual payments for biodiversity-rich ground cover under and between arrays
- ✓ Grassland and soil actions — for sheep-grazed agrivoltaic sites kept in managed grassland
- ✓ Hedgerow management — per-metre annual payments for hedgerows around solar field perimeters
- ✓ Countryside Stewardship capital grants where the project delivers measurable biodiversity uplift
This stacking is the key reason an owned agrivoltaic system usually out-earns leasing the same land to a solar developer: a land lease pays a fixed, low-risk rent (commonly a few hundred up to around a thousand pounds per acre per year) but surrenders the generation value and the SFI income for 25–40 years. Agrivoltaics keeps the land farming and captures all three streams — at the cost of capital outlay and management.
Limitations of agrivoltaics
- ✗ Higher capital cost (15–30% structural premium for elevated/wider-spaced frames vs. standard ground-mount)
- ✗ Lower kWp per acre (≈0.5–0.7 MW/hectare vs. ≈0.8–1.0 for solar-only) due to spacing for animal/crop access
- ✗ Modestly reduced grazing density versus equivalent open pasture
- ✗ Specialist mowing or grazing management required to maintain wildflower mixes — not just standard agricultural practice
- ✗ Some shade-sensitive crops (cereals, brassicas) genuinely unsuitable beneath panels
- ✗ Longer payback than rooftop farm solar — rooftop remains the fastest-return option (≈2–4 years)