Solar Panels for Farms in Cambridgeshire

Specialist agricultural solar PV across Cambridgeshire and the wider Cambridgeshire area, including Norfolk, Suffolk, Essex. MCS-certified, FETF grant-backed, fixed-price proposals within 7 working days.

Agricultural solar panels in Cambridgeshire

Cambridgeshire is one of the most productive farming counties in the United Kingdom, and that productivity runs on electricity. The black, peat-rich soils of the Fens around March, Wisbech, Chatteris and Whittlesey grow some of the highest-yielding arable and vegetable crops in the country — wheat, barley, sugar beet, oilseed rape, potatoes, roots and a vast acreage of field salads and brassicas. Those crops do not simply leave the field; they are washed, graded, cold-stored, packed and chilled before they reach a supermarket. Refrigeration, pack-house lighting, conveyor lines, irrigation pumps and grain drying are relentless, year-round electrical loads, and they fall hardest in exactly the daylight hours when a solar array on a large barn or grain-store roof is producing most strongly. That overlap between on-farm demand and solar generation is what makes the economics so attractive here: every unit you self-consume is a unit you are not buying from the grid at commercial day rates.

The county is served by UK Power Networks (UKPN) as the distribution network operator, the same DNO that covers the wider East of England. Cambridgeshire’s flat, open landscape — there is no National Park and no AONB across the farmed Fens, only features like Devil’s Dyke on the chalk near Newmarket — means shading is rarely an issue, and the region’s irradiance of roughly 1,050–1,100 kWh per kWp installed is among the best in Britain for a large, unshaded south-facing roof. With gross install costs of £600–900/kWp falling to roughly £360–540/kWp after capital allowances, the typical Cambridgeshire farm sees payback inside 1.6 to 2.6 years, after which the array produces near-free power for another 20-plus years. To see how that breaks down by system size, our agricultural solar panel cost guide sets out the numbers in detail.

Farm solar across Cambridgeshire by district

Cambridgeshire’s farming character changes markedly as you move across the county — from the intensive vegetable and salad operations of the northern Fens, through the arable heartland, to the mixed and livestock holdings on the higher ground. The table below shows how a typical solar specification shifts with enterprise type and roof area.

These are roof-mounted ranges on existing barns, grain stores and pack-houses. Many Fenland holdings with large packing and refrigeration loads will sit at the upper end of system size, and a number combine roof PV with battery storage to shift cheap midday generation into evening cold-store running. The northern Fen districts around Wisbech, March and Chatteris consistently support the biggest arrays in the county because their pack-houses run chilling and grading lines deep into the day — a profile that captures almost everything a south-facing roof can produce. Further south and on the higher ground around Huntingdon, St Ives and St Neots, the loads are more seasonal and the systems correspondingly smaller, though the payback remains firmly inside the sub-three-year band thanks to Cambridgeshire’s strong irradiance and low-shading roofscapes.

Grants and tax relief for Cambridgeshire farms

As an English county, Cambridgeshire farms can draw on the Farming Equipment and Technology Fund (FETF), which offers grants of up to 40% towards eligible items — including solar-related equipment and battery storage on qualifying applications — capped at £100,000 per business. FETF is competitive and opens in defined windows, so it pays to have a scheme costed and ready before the round opens.

Alongside the grant, the 100% Annual Investment Allowance (AIA) lets a trading farm business write off the entire qualifying cost of a solar installation against taxable profits in the year of purchase — for a business paying tax, that alone recovers a large slice of the net cost. Surplus generation that you cannot self-consume can be exported under the Smart Export Guarantee (SEG), paid by licensed suppliers, which adds a modest income stream from the power your array produces beyond on-farm demand. For Cambridgeshire’s arable holdings, where the heaviest electrical demand is concentrated into the grain-drying weeks of late summer, SEG matters more than it does for a year-round packer — outside harvest, a larger share of generation is exported rather than self-consumed, so the export tariff helps underpin the return. Used together, FETF, AIA and SEG are what compress payback into the sub-three-year range, and the right balance between them depends on your own demand profile rather than a rule of thumb. Our farm solar grants guide explains eligibility and how to stack the schemes correctly.

Planning and grid in Cambridgeshire

Cambridgeshire is unusually straightforward for planning. There is no National Park and no Area of Outstanding Natural Beauty across the working farmland of the Fens, so the heritage and landscape constraints that complicate solar in upland counties simply do not apply here for most rooftop schemes. Solar panels mounted on the roof of an existing agricultural building are, in the great majority of cases, permitted development — no full planning application required, subject to size and siting conditions. That makes a barn, grain-store or pack-house roof the fastest and cheapest route to generation.

Ground-mounted arrays are a different matter: anything beyond a modest footprint will need a full planning application to the relevant district authority (Fenland, East Cambridgeshire, Huntingdonshire, South Cambridgeshire or Peterborough City), and larger schemes typically require a Landscape and Visual Impact Assessment. On the higher chalk ground near Devil’s Dyke and Newmarket, landscape sensitivity is greater and ground-mount should be scoped carefully. On the grid side, UK Power Networks (UKPN) governs connection. Systems are connected under the G99 process — smaller arrays may qualify for the simpler G98 notification, while larger commercial systems need a formal G99 application and, occasionally, a network reinforcement study where the local Fenland network is already loaded. We handle the DNO paperwork and capacity check as part of every quote.

Typical Cambridgeshire farm solar projects

The figures below are representative enterprise-type ranges for Cambridgeshire holdings, not named installations — they show the shape of a typical project rather than a specific farm’s accounts.

• A Fenland salad and roots packer near Wisbech with cold storage and a large pack-house roof: 200–300 kWp, roughly £85–145k net after allowances, payback around 1.6–2.0 years thanks to heavy daytime refrigeration load.
• An arable and sugar-beet farm near Ely with a grain store and drying floor: 100–150 kWp, in the region of £45–70k net, payback 1.9–2.4 years, with generation matched to harvest-season drying demand.
• A mixed arable and beef holding near Huntingdon: 60–120 kWp across barn roofs, approximately £28–55k net, payback 2.0–2.5 years, often paired with a battery to cover early-morning and evening yard loads.
• A southern arable and contracting business near St Neots: 50–100 kWp, around £24–47k net, payback 2.1–2.6 years, sized to workshop, store and office demand with surplus exported under SEG.

Every Cambridgeshire project starts with your actual half-hourly meter data, a structural survey of the roof in question, and a fixed-price proposal — so the system is sized to how your farm really uses power, not a generic template.