TL;DR:

  • Agrivoltaic systems co-locate solar panels and crops on the same land, with studies showing yields of shade-tolerant crops can actually increase beneath panels
  • The combination reduces evaporation and heat stress on plants, cuts irrigation needs by up to 30%, and provides farmers with a second revenue stream from electricity
  • Commercial projects are scaling rapidly across Europe, the US, and Japan — UK planning rules are beginning to accommodate the approach

There’s a persistent tension in the energy transition: solar farms require land, and agricultural land is often the flattest, sunniest, and therefore most attractive to developers. In many rural areas this creates a genuine conflict — food production or clean energy, but not both.

Agrivoltaics reframes that as a false choice.

What Is Agrivoltaics?

The term combines “agriculture” and “photovoltaics.” It refers to systems where solar panels are deliberately co-located with crops or livestock, with the panels positioned to allow agricultural activity to continue beneath and between them. The idea isn’t new — the first peer-reviewed proposal was published in 1982 — but the commercial case has only recently become compelling enough to drive meaningful deployment.

There are several configurations:

  • Elevated fixed-tilt systems: panels mounted 3–5 metres high on posts, with normal cultivation continuing below
  • Interrow systems: standard ground-mount arrays with enough spacing between rows for low-growing crops or grazing
  • Dynamic / tracking systems: panels on single-axis or dual-axis trackers that can tilt to optimise either electricity generation or light transmission depending on conditions
  • Vertical bifacial systems: panels mounted vertically, capturing light on both sides, particularly suited to field boundaries

The Agronomic Case

The counterintuitive finding that made agrivoltaics compelling was that many crops actually perform better with partial shading than in full sun, particularly during heat stress periods. Research from Fraunhofer ISE in Germany, which has operated agrivoltaic test sites since 2016, found:

  • Grass and clover yields were broadly maintained
  • Potatoes showed a modest yield reduction (~20%) but dramatically reduced irrigation requirement
  • Celeriac yields were largely unaffected
  • Berry crops and leafy vegetables showed improved yields under the reduced evapotranspiration conditions

A 2023 study in Nature Food modelled agrivoltaic potential across Europe and found that dual-use systems could meet EU electricity demand from 1% of EU farmland, with co-benefits including reduced agricultural water consumption at a time when summer droughts are intensifying.

The mechanism is partly simple physics: panels shade the soil, reducing soil temperature and evaporation. On a hot August day, soil beneath panels can be 5–10°C cooler than adjacent open ground. For crops vulnerable to heat stress — increasingly common as climate patterns shift — this is a genuine production benefit, not just a neutral trade-off.

The Financial Case

For farmers, agrivoltaics offers something rare: a second revenue stream from the same land.

A typical agrivoltaic lease arrangement in the UK currently generates between £900–£2,000 per acre per year from solar rental income, on top of continued agricultural use of the land. For many mixed farms, that rental income can exceed the agricultural margin on that land, making the economics straightforwardly attractive.

The challenge is the upfront complexity. Agrivoltaic installations cost more than conventional ground-mount solar because of the elevated mounting structures required, and the agricultural operation needs to be integrated into the electrical system design from the start. This makes project economics sensitive to the specific crop type, local electricity prices, and grid connection terms.

UK Planning Context

UK planning policy for ground-mount solar has historically required developers to demonstrate that land is below Grade 3a on the agricultural land classification — effectively ruling out the most productive farmland. This created pressure to use lower-quality land that may be less suited to agrivoltaics’ primary benefits.

The Nationally Significant Infrastructure Projects framework and recent consultations from DESNZ suggest movement toward allowing higher-grade land for solar where the proposal is a genuine dual-use system with continued agricultural productivity. Several planning appeals have succeeded on this basis in 2025–26, establishing precedent.

The British Agrivoltaics Association, founded in 2024, has developed guidance for planning applications and is working with the NFU and RSPB on standards that would give local planning authorities confidence in appraising dual-use proposals.

Where It Works Best

Not all crops are suitable. The best candidates for agrivoltaics:

Good fits: Soft fruit (strawberries, raspberries), leafy salads, herbs, hops, lavender, shade-tolerant fodder crops, sheep and cattle grazing, beekeeping beneath panels.

Challenging: High-canopy crops like wheat and oilseed rape where panel height requirements would be very large; crops with very high light saturation points.

Research-stage: Tree fruit (apple, cherry) where preliminary results look promising but the 20–30 year panel replacement cycle aligns interestingly with orchard replanting cycles.

Practical Steps for Interested Landowners

  1. Commission a site assessment — agrivoltaic feasibility requires both a solar irradiance survey and an agronomic appraisal. They need to happen together, not sequentially.
  2. Engage early with your local planning authority — the planning landscape is evolving and pre-application discussions are valuable.
  3. Consider a community energy option — several UK community energy organisations are developing agrivoltaic projects with more farmer-friendly revenue sharing than traditional developer lease models.
  4. Talk to your farm insurer — insurance products for combined agricultural/energy infrastructure are still evolving and need early attention.

Agrivoltaics won’t be the right fit for every farm. But for the right sites — ideally where irrigation costs are significant, where crops have some shade tolerance, and where grid connection costs are manageable — it represents one of the more genuinely attractive intersections of the energy transition and food production that the sector has produced.