Livestock Farms (Beef/Sheep/Pig/Poultry): Solar panels for agriculture

Livestock units: large simple roofs and real, year-round loads

Livestock is one of the most rewarding parts of agriculture for solar because the buildings are large, structurally simple and often well suited to PV, and the loads are genuine. The sector spans a wide range, from low-baseload beef and sheep enterprises to intensive pig and poultry units with very high year-round demand, and solar fits across that range with the right design. The strongest case is the modern poultry or pig shed: these carry huge clear-span roofs and run ventilation, heating and lighting almost continuously, so self-consumption is typically 80% or more and the panels pay back fast. Free-range egg and broiler operations align especially well with the summer solar peak, when long daylight hours and high ventilation demand coincide. At the other end, beef and sheep farms with modest building demand often do better with a ground-mount or a shared model than a rooftop array. The point that holds across agriculture is that livestock buildings give you scale and simplicity, two things solar rewards.

As everywhere in farming, energy is a controllable cost in a sector where output prices are set elsewhere, and assurance schemes and retail buyers increasingly reward evidence of on-site renewable generation. For an intensive unit feeding a supermarket contract, that auditable Scope 2 reduction is worth having as part of the holding's wider sustainability position, not just as a line on the electricity bill. Pig units carry high heating loads in cold months and ventilation through the summer, so demand is meaningful year-round, while poultry sheds run ventilation almost constantly; in both cases the economics tend to be excellent because the building is using power at the same time the panels are making it.

There is a useful seasonal alignment too. Free-range egg and broiler operations run their heaviest ventilation loads through the warm months, which is exactly when solar generation peaks, so the summer surplus that would be wasted on a low-demand site is instead absorbed by the very demand the heat creates. That coincidence of supply and demand is part of why poultry economics are so strong. Beef and sheep enterprises sit at the other end of the spectrum, with demand concentrated in winter housing, and for those the answer is more often a smaller rooftop array, a ground-mount that serves the whole holding, or a shared arrangement, rather than a large roof that would export most of its output at the lower rate.

What a typical install looks like and how we size it

We usually design livestock systems in the 20 to 300 kW range, roughly 37 to 550 panels over 120 to 1,800 square metres of shed roof, generating around 18,000 to 275,000 kWh a year and saving 4 to 63 tonnes of CO2. Sizing follows the building and its real demand. A clear-span broiler shed with constant ventilation justifies an aggressive system sized for self-consumption, while a beef yard with modest demand is better matched to a smaller array or a ground-mount that also serves other parts of the holding. We pull half-hourly data so the system tracks what the unit genuinely draws across the day and the year rather than an optimistic maximum, and for intensive units we pay close attention to the ventilation and heating profile that drives the load.

The contrast within the sector is worth dwelling on, because it changes the design. An intensive poultry or pig unit has a high, steady baseload that a large rooftop array will largely self-consume, so we size up with confidence. A beef or sheep enterprise has a much lower building demand, often concentrated in winter housing, so a big rooftop array would export most of its generation at the lower rate; for those holdings a smaller rooftop system, a ground-mount that serves the whole farm, or a shared arrangement usually pays better. We always run the numbers from the actual meter data rather than applying a rule of thumb, because two livestock farms of the same acreage can have very different load shapes.

A common worry on a working livestock unit is that the install will disrupt the animals or compromise health status, and it is a fair concern. In practice a rooftop install almost never interferes with day-to-day operations. We agree the biosecurity regime before we start, route access away from clean areas, and schedule the physical work around your stocking and movement calendar so the unit keeps running. The only genuine outage is the final grid connection, which is a matter of hours and which we book for a quiet period agreed with you. For a unit feeding a supermarket contract, that careful approach matters as much as the engineering, because nothing about the install should put your assurance status or your buyer relationship at risk.

Costs, payback and tax relief

A livestock project typically runs £22,000 to £270,000 with a payback near 6 years. The 100% Annual Investment Allowance lets most farm businesses write off the full cost against profit in year one, and the Smart Export Guarantee pays for any surplus you export. For intensive units with very high self-consumption the return is driven by avoided import rather than export, which is the stronger position to be in because you are displacing the full retail price of grid power rather than selling units back at a lower rate. See the cost guide for worked figures by shed type and the funding page for the tax and export detail.

Because livestock installs are typically modest in scale, they almost always fall well within the Annual Investment Allowance cap, so the whole qualifying cost can be written off against profit in the first year. That year-one relief, combined with the high self-consumption of an intensive unit, is what brings the payback in around the six-year mark and leaves more than a decade of effectively free generation after that. We present the figure as a range because shed type, ventilation regime, stocking density and tariff all move it, and we would rather give you an honest band than a flattering single number.

Where a shed has an ageing asbestos cement roof, the economics can work even harder. Those roofs cannot take panels and need a strip and reclad to modern profiled steel before PV goes on, which on the face of it adds cost. But many livestock farmers have been deferring a re-roof for years, and the solar business case can help fund that long-postponed refurbishment inside the same capital decision. You end up with a new, watertight roof and a generating asset on top of it, rather than continuing to patch a roof that was due for replacement anyway. We assess the roof condition and any asbestos at survey, so if a reclad is needed it is priced into the fixed proposal from the outset.

Funding routes in detail

The 100% Annual Investment Allowance applies to every livestock business paying corporation tax or self-assessment and fully expenses qualifying plant in year one within the annual cap, which livestock installs sit well below. The Smart Export Guarantee covers exported units for MCS-certified systems up to 5 MW, paying in the region of 4 to 15p per kWh, though intensive units with strong self-consumption export relatively little. The Farming Investment Fund can be relevant where solar is paired with an eligible item such as a livestock building upgrade, so it is worth checking for indirect eligibility. The Sustainable Farming Incentive does not fund standalone solar but supports biodiversity and integrated management actions on the broader holding, with relevant actions paying in the region of 500 to 5,000 pounds per hectare per year. Livestock farms in Wales and Scotland should review their devolved schemes, the Welsh Rural Investment Scheme and the Scottish Rural Development Programme, which often carry higher intervention rates than the equivalent England-wide support. We set out every route you may qualify for in the proposal.

Compliance and sector considerations

Animal welfare regulations are unaffected by a rooftop install, but biosecurity governs how we work. Boot dips, restricted access and cleaning protocols apply throughout, and we plan access routes that keep the install away from clean areas and follow your unit's existing biosecurity regime. Rooftop PV on agricultural buildings is generally permitted development within size limits, and a G99 grid application is needed above 17 kW per phase. As with other agricultural buildings, pre-2000 sheds often carry asbestos cement roofs that cannot take panels and need a reclad first under the Control of Asbestos Regulations 2012, work the PV business case can help fund. Tenanted units need landlord consent for the structural alteration, and most institutional landlords operate standard tenant solar agreements. We confirm the roof build-up and any asbestos before quoting rather than discovering it on the day, because for a live livestock unit an unexpected re-roof mid-project is disruptive as well as costly.

How we approach this kind of project

We size from your half-hourly meter data and the ventilation and heating pattern that drives an intensive unit, so the array matches genuine demand rather than nameplate capacity. We survey the buildings, check for asbestos and confirm the structure before issuing a fixed-price proposal, and we plan the whole job around your unit's biosecurity from the first site visit, agreeing access and cleaning protocols with you in advance so the install never compromises your health status. The G99 grid application goes in early, alongside the survey, because the rural connection is usually the slowest step, and where export capacity is tight we can design for self-consumption only. Every install carries an insurance-backed workmanship warranty, and we schedule the work around your stocking and movement calendar so production is not disrupted while the panels go up. The only outage is the brief final grid connection, which we book for a quiet period.

An illustrative example

As an illustrative composite based on typical UK livestock projects, and not a real named client or real project, a free-range broiler unit with two large clear-span sheds and a high year-round ventilation load installs around 150 kW across the shed roofs, generating in the region of 140,000 kWh a year. With ventilation running constantly, self-consumption sits above 80%, the cost is written off in year one under the Annual Investment Allowance, and the payback comes in close to 6 years. The figures are illustrative and depend on your buildings, stocking and tariff; we model your own numbers from meter data before anything is committed, and we would never present a worked example as a guaranteed outcome for a different unit.

If you also crop or run a dairy, see arable solar and dairy solar. To see the economics, read the cost guide and the grants and funding page, then request a free feasibility or read the agricultural solar FAQs.