Dairy farms
Milking parlours, refrigeration tanks, vacuum pumps and water heating drive continuous daytime demand. Self-consumption typically 80-90%. Strong case for solar + battery to also cover evening milking on TOU tariff economics.
Solar PV for farm buildings & agricultural sites
Solar panels for farm buildings — barn roofs, parlours, machinery sheds & ground-mount
MCS-certified solar PV for farm buildings across the UK — large-span barn roofs, dairy parlours, poultry sheds, grain stores, machinery buildings and ground-mount arrays where land permits. Capital allowances, asset finance, FETF / SFI alignment for diversified farm income. Particularly strong for Northumberland, Tyne Valley, County Durham and Teesside agricultural properties.
Farm building solar — quick reference
Agricultural solar in numbers
50-500 kW
Typical farm building install
barn roofs deliver scale
3-5 yrs
Typical payback
with on-farm consumption
100% AIA
Capital allowances
Annual Investment Allowance
FETF / SFI
Defra scheme alignment
farm equipment + sustainable farming
Class Q
Permitted development
up to 50 kWp agricultural
60-90%
Self-consumption
higher on dairy / poultry / processing
Farm building types
Solar on every type of agricultural building
Most UK farm buildings are exceptional candidates for solar PV — long-span steel-frame structures with generous south-facing pitched roofs and minimal shading. We've installed across every common farm building category. Each has its own structural and electrical considerations.
Barn & livestock buildings
Steel-frame barns (cattle, sheep, calf-rearing) typically support 100-250 kWp installs. Roof-pitch usually shallow (6-12°) — ideal for solar without significant tilt frames. Care needed where roof corrosion or sheet condition is compromised (we survey).
Dairy parlours & cooling
Dairy farms have the highest on-farm electrical load — milking, vacuum pumps, plate coolers, refrigeration. 50-150 kWp installs typically self-consumed at 80-90%. Pairing with battery for off-peak milking sessions adds material value.
Poultry sheds
Broiler & layer poultry sheds typically have huge roof areas (50-100 m wide × 200 m long) and continuous ventilation / lighting / feed demand. 200-500 kWp installs common. Critical-load resilience matters — battery + EPS recommended.
Grain stores & arable buildings
Grain stores with drying / aeration fan demand are good solar candidates — peak load matches summer harvest sun. 50-200 kWp typical. Pairs with EV charging for tractor & harvester telematics.
Machinery sheds & workshops
Equipment storage buildings with lower base load are best paired with on-farm EV chargers and battery storage to time-shift consumption. 30-100 kWp range.
Ground-mount arrays
Where roof space is limited or generation needs to exceed roof capacity, frame-mounted ground arrays on owned land qualify under Class Q permitted development up to 50 kWp. Larger arrays need full planning. Sheep grazing & pollinator planting between rows.
Farm solar economics are uniquely strong
Farms typically have very large barn and machinery-shed roofs (often 1,000-5,000 m² across multiple buildings), significant daytime power demand (milking parlours, refrigeration, grain drying, ventilation, water pumps), and grid-supply situations that often need careful design (rural three-phase, sometimes single-phase with limited capacity).
Add the agricultural-sector specifics — Annual Investment Allowance applicable to most farms as limited companies or partnerships, diversification revenue potential from surplus export, and increasingly Red Tractor / LEAF certification carbon requirements — and the financial case is genuinely stronger than most urban commercial sectors.
- Barn roof + machinery shed installs
- Ground-mount options where land permits
- Off-grid / hybrid for remote farms
- Parlour, refrigeration, grain dryer demand matching
- AIA + capital allowances
- LEAF / Red Tractor carbon reporting
70-85%
Self-consumption typical (dairy/intensive)
4-6 yrs
Typical payback with AIA
£0.04-0.05
/kWh effective cost over 25 yrs
40+ tCO2e
Avoided/yr per 200kW farm array
Farm types we work with
Sector-specific farm solar
Beef and sheep farms
Lower continuous electrical demand than dairy but large barn roof areas available. SEG export becomes a larger share of the economics. Solar + battery + EV (for farm vehicles) is increasingly the integrated package.
Arable farms
Grain drying drives huge electrical spikes in harvest season — solar can't cover the peak but materially reduces annual cost. Workshop and farmhouse demand matches PV generation well. Often the biggest roof area available.
Poultry farms
Continuous ventilation, lighting and heating systems. Among the strongest commercial-scale solar cases — 24/7 demand matches battery + solar perfectly. Increasingly required by major retailers for compliance.
Mixed and smallholdings
Smaller residential-scale installs combined with farm-business systems. Often configured as solar on house + barn with shared inverter, splitting domestic and farm consumption for accounting clarity.
Off-grid and rural
Properties beyond mains supply or facing prohibitive DNO uprate costs. Solar + battery + LPG backup generator can deliver fully off-grid power at a cost competitive with the cheapest grid uprate options.
Mounting options
Roof, ground or wall — where the panels go
Barn and machinery shed roofs
The default for most farm installs. Standing-seam clamp mounting on metal-deck roofs (Steadmans, Kingspan, Tata profiles) — no penetration of the roof membrane, preserving any manufacturer warranty. Bigger sheds typically 1,000-3,000 m² each, often two or three across the farmyard. We design installs to spread across multiple roofs rather than concentrating on one.
Ground-mount
Where roof area is limited or unsuitable, ground-mount arrays on previously unused field corners or unproductive land deliver high yield at moderate land cost. Planning permission usually required for larger arrays (over 50kW typically needs consent). Sheep grazing under panels is permitted and increasingly common.
Asbestos cement roof replacement
Many older farm barns have asbestos cement roofs (used heavily 1950-1990). Solar can't be mounted directly to asbestos — it has to be overclad or replaced. We scope a combined solar + roof-replacement project where the new metal roof becomes both the structural substrate and the mounting platform. Often the project that finally justifies the roof renewal.
Grid considerations
Rural grid constraints and how we work around them
Rural Northumberland and West Durham have well-known grid capacity constraints. Many farms have a single-phase 60-100A supply that's already near capacity. Adding solar typically isn't the problem — it's any of the secondary loads (battery, EV charging, heat pump for the farmhouse, grain drying).
Our standard approach for grid-constrained farms is "behind the meter" design — sizing the solar array to displace existing demand without exporting at maximum capacity, and using a battery to time-shift surplus rather than back-feeding the grid. This avoids the cost and 6-12 month timeline of a DNO supply uprate.
Where a supply uprate is needed (typically for arrays over 100kW or with significant battery storage), Northern Powergrid's connection costs in rural areas can range from £15,000 to £80,000+ depending on distance to the nearest substation. We scope this early and include the figure in the project cost model.
Our accreditations
Accredited, certified, and backed by independent standards
MCS Certified
NAPM47760
Heat pumps & solar
NICEIC Approved
D124458
Electrical contractor
Gas Safe Register
947841
Gas appliances
Heat Geek Trained
Heat pump design specialists
TrustMark
Government endorsed
Quality scheme
SafeContractor
Approved
H&S accredited
ISO 9001
2015
Quality management
ISO 14001
2015
Environmental management
ISO 45001
2018
OH&S management
PAS 2030
:2019
Retrofit standard
NAPIT
Member
Electrical inspection
F-Gas Certified
Air conditioning refrigerant
MCS Certified
NAPM47760
Heat pumps & solar
NICEIC Approved
D124458
Electrical contractor
Gas Safe Register
947841
Gas appliances
Heat Geek Trained
Heat pump design specialists
TrustMark
Government endorsed
Quality scheme
SafeContractor
Approved
H&S accredited
ISO 9001
2015
Quality management
ISO 14001
2015
Environmental management
ISO 45001
2018
OH&S management
PAS 2030
:2019
Retrofit standard
NAPIT
Member
Electrical inspection
F-Gas Certified
Air conditioning refrigerant
Every accreditation listed is independently verified. We carry the registration numbers — ask for any on request.
Book a farm solar visit
Free site survey including roof assessment, half-hourly meter analysis where applicable, DNO supply scoping. Quote within two weeks.
Free, no-obligation survey Fixed-price written quote MCS certified installation