Why poultry & broiler sheds are an excellent fit for commercial rooftop PV
Modern UK poultry sheds — free-range egg laying houses, broiler grow-out sheds, breeding houses and table-egg packing facilities — are among the largest contiguous-roof buildings on commercial farms. Free-range egg laying houses to RSPCA Assured and Lion Quality standards are typically 80m × 22m per shed (around 1,760 sqm) with year-round 24/7 lighting and ventilation loads. Broiler grow-out sheds run heating intensively through brooding (chick rearing) and ventilation continuously through finishing. Multi-shed sites with 4–10 buildings on a single yard are common — typical large free-range or broiler operations support combined installs of 500 kW to 1.5 MW under a single G99 application. The self-consumption story is excellent: continuous year-round baseload across multiple buildings typically delivers 75–90% self-consumption depending on retailer-mandated lighting protocols.
System sizing for poultry & broiler sheds
Poultry shed PV sizing should be matched to the operating cycle. Free-range egg laying houses with daylight-mimicking artificial lighting have a steady year-round baseload of 30–60 kW per shed — size at 80–180 kW per building roof. Broiler grow-out sheds have a more variable load profile (intensive heating in week 1–2 brooding, then dropping rapidly as birds grow) — typically size at 100–200 kW per shed to capture grow-out ventilation baseload and export the seasonal surplus under SEG. Pullet rearing houses sit between the two. Multi-shed sites benefit from aggregated install scale — central inverter farms, shared monitoring, single G99 application — and we routinely deliver 600 kW+ installs across 4–6 shed roofs on a single mobilisation.
Typical poultry & broiler sheds install at a glance
- System size range
- 50–300 kW
- Panel count
- 92–550
- Roof area needed
- 300–1,800 sqm
- Project value
- £45,000–£270,000
- Typical simple payback
- 5.5 years
- Annual generation
- 46,000–275,000 kWh
- Annual CO2 avoided
- 11–63 tonnes
Cost and economics
Poultry install economics in 2026: £45,000–£270,000 typical project value, 5.5-year simple payback, 46,000–275,000 kWh annual generation. The economic case for poultry PV has strengthened significantly since 2023 as electricity costs settled above 24p/kWh and retailer Scope 3 supplier audits intensified. Free-range egg producers under RSPCA Assured, Lion Quality or supermarket-specific welfare schemes (Tesco Stronger Starts, Sainsbury's Plan for Better, M&S Plan A) increasingly find PV install economics dominated as much by supplier-audit positioning as by direct grid-cost avoidance. We provide auditor-ready documentation as standard.
Compare these numbers against the wider cost of farm-building solar in 2026 and the grants and finance routes available. We provide full DCF financial models with PVSyst yield modelling and 25-year IRR projections in every fixed-price proposal.
Compliance and regulation
Avian Influenza biosecurity (Avian Influenza Order 2006) applies during install — boot dips, restricted access lanes, vehicle disinfection, daily decontamination of the crew. We work in biosecurity-conscious mode whenever any poultry are in residence. Salmonella National Control Programme requirements are unaffected by rooftop PV. RSPCA Assured, Lion Quality and supermarket-specific welfare schemes welcome PV — most schemes now have specific sustainability sections that reward documented Scope 2 reductions. Welfare of Farmed Animals Regulations 2007 unaffected. Electrical works to building services follow BS 7671 with the standard observation that ventilation systems are critical-load and must not be interrupted.
Install programme and timeline
Poultry shed install timeline: weeks 1–3, survey and design including biosecurity coordination; weeks 3–5, contract and DNO G99 application; weeks 5–10, procurement and biosecurity planning with the farm manager — typically scheduling install to coincide with flock changeover windows; weeks 10–14, install — 3–6 weeks for a multi-shed 600 kW+ install, all crews working in biosecurity protocol throughout; week 14, commissioning. For free-range egg producers, flock changeover comes every 14–18 months; for broilers, every 6–8 weeks. We work to whatever window the farm calendar provides.
A representative recent poultry & broiler sheds install
A representative recent install: a North Norfolk free-range egg producer running 350,000 laying hens across two clear-span insulated sheds (each 80m × 22m). Annual pre-install electricity spend £58,000 across continuous ventilation and lighting. We delivered 180 kW rooftop PV across both sheds — 330 modules, two string inverters per shed, all wired to the central control building's main switchboard. Install was completed under full Avian Influenza biosecurity in a six-week window between flock changeovers. The system achieves 78% self-consumption thanks to continuous ventilation and lighting baseload. Annual saving £39,500 in year one. Simple payback 5.6 years. The retailer's supplier audit referenced the install in 2025, contributing to a contract extension.
See more examples in our case studies library — we publish full project narratives across every sub-vertical we work in.
Key features and capabilities for poultry & broiler sheds
- Free-range egg and broiler operations have huge clear-span roofs (typically 80m × 20m per shed)
- Continuous ventilation, heating in winter, and lighting create year-round baseload
- Multi-shed sites can support 500+ kW aggregated installs
- Free-range scheme alignment with sustainability evidence
Get a fixed-price proposal for your poultry & broiler sheds install
Every quote starts with a free desk-based feasibility study from your half-hourly meter data and building dimensions. We share an indicative system size, generation forecast, self-consumption ratio, and 25-year financial model within 7 working days. If the numbers work, our engineers visit for a one-day structural and electrical survey, after which we deliver a fixed-price proposal with full PVSyst yield modelling and DCF financial model. Most poultry & broiler sheds installs commission in 4–7 months from contract; combined re-roof + PV programmes add 2–3 months. Send your meter data via our quote form or contact us directly to get started.
Common questions
How much do solar panels for farm buildings cost in the UK?
For a typical UK farm-building PV install in 2026, cost per kW is roughly £900–£1,100 for systems under 50 kW (small barn, dairy parlour, equestrian arena), £800–£950 per kW for 50–250 kW systems (typical livestock shed, mid-size grain store, poultry shed), and £700–£850 per kW for systems above 250 kW (large multi-bay barns, intensive poultry or pig units, big grain stores). Combined re-roof and PV (asbestos replacement) adds £25–£45/sqm to capex but is often the only viable path on pre-2000 buildings. We provide a fixed-price proposal within 7 working days of receiving meter data and roof dimensions.
Can we put solar panels on asbestos cement barn roofs?
No — asbestos cement roofs must be replaced before any rooftop PV install. The Control of Asbestos Regulations 2012 prohibits drilling, fixing, or load-imposing on asbestos cement sheeting. The standard approach is a combined re-roof + PV project: a licensed asbestos contractor removes the cement sheets, the structure is upgraded if needed, profiled steel or membrane is installed, then PV mounts to the new roof. The PV business case routinely pays for 60–100% of the re-roof cost over the 25-year system life.
Which farm building should we install solar on first?
Prioritise by three criteria: (1) roof area and orientation — the biggest south-facing clear-span roof in sound structural condition wins; (2) on-site daytime load — dairy parlours, grain stores during harvest, intensive livestock houses, and farm workshops all have year-round or seasonal daytime baseload; (3) install access and biosecurity complexity — workshops and grain stores typically have lower biosecurity friction than poultry or pig units, but the latter often have much larger roofs. We rank each building during feasibility on payback, self-consumption, and complexity.
Will solar panels work on a curved or arched barn roof?
Generally no — modern PV requires a structural surface with adequate purlin spacing and slope (typically 5° to 35°). Curved Dutch-barn or hooped sheds need either a separate flat or pitched roof to be installed (rare), a ground-mount alternative, or — most commonly — a different building on the farm chosen as the PV host. We assess every farm holistically rather than fixating on a single building.
What grants are available for farm-building solar in 2026?
Headline schemes: 100% Annual Investment Allowance (universal — up to 25% effective tax saving year one), Sustainable Farming Incentive (SFI 2025 actions for biodiversity and agrivoltaic pairings), Farming Investment Fund (capital grants on solar-paired investments like robotic milking or grain dryers), Smart Export Guarantee (8–15p/kWh on surplus export). Welsh and Scottish farms have additional devolved schemes (Rural Investment Schemes) often with higher intervention rates than English equivalents.
Do we need planning permission for solar on agricultural buildings?
Most rooftop installs on agricultural buildings fall under Class A Part 14 GPDO 2015 Permitted Development — no planning permission needed. The exceptions are: listed agricultural buildings (Listed Building Consent required), National Parks and AONBs (sometimes Article 4 directions in force), Conservation Areas, and ground-mount above 9m × 9m × 4m height. We handle planning consultation as part of every project — typically a 4–8 week timeline if planning is required.