Why pig unit solar makes economic sense around Plymouth
Plymouth sits at the heart of south Devon dairy (4% of England's milk), Dartmoor commoned grazing, South Hams horticulture and emerging vineyard estates. The region's working farms — many tenanted from institutional landlords like Duchy of Cornwall — typically run multi-building holdings with significant on-farm electrical demand. Pig Unit installations near Plymouth benefit from year-round daytime baseload that aligns well with PV generation: Climate-controlled finisher houses have high year-round ventilation and heating loads. What a particular building would save depends on its half-hourly electricity use, the tariff it pays and its export arrangement, so the figures come from the farm’s own bills rather than an area average; the farm solar cost guide shows how to build that estimate from the official DESNZ figures.
Typical pig unit install specification for the Plymouth region
A representative pig unit install for a working farm near Plymouth delivers around 40 kW of capacity across roughly 240 square metres of roof area. African Swine Fever biosecurity (Pig Health Scheme) strictly observed during install. NVZ (Nitrate Vulnerable Zone) slurry-management compliance unaffected. AHDB pork sustainability framework increasingly references on-farm renewables.
Indicative pig unit install around Plymouth
- System size range
- 40–250 kW
- Panel count
- 75–460
- Roof area needed
- 250–1,500 sqm
- Annual generation
- 37,000–230,000 kWh (modelled)
Plymouth-area planning and grid context
Pig Unit solar installations near Plymouth typically fall under Class J, Part 14 GPDO 2015 Permitted Development, subject to its conditions and to prior approval where the order requires it; the limits are set out on planning permission for solar on farm buildings. The distribution network operator (DNO) is the company that owns the local network, set by the site’s location rather than the electricity supplier. It sets its own G99 study timescales and any reinforcement cost, so ask it for current figures in writing before relying on a programme; the process is covered in the guide to DNO grid connection for rural farm solar.
Pig Unit solar in Plymouth — key features
- Climate-controlled finisher houses have high year-round ventilation and heating loads
- Farrowing-house heat lamps and creep heaters major winter loads
- Often paired with biogas/AD on intensive sites — PV complements rather than competes
- Red Tractor Pork and RSPCA Assured scheme alignment
Combined re-roof and PV for older Plymouth-area pig unit buildings
Many buildings of this age carry asbestos cement sheets. Installers will not normally fix through them, so the roof is overclad or replaced before the panels go on. HSE says most work on asbestos cement is non-licensed provided the people doing it are informed, instructed and trained, and its task sheet A14 asks whether the sheets can be overlaid with non-asbestos material instead of removed. The options and what to ask for are in overclad or strip an asbestos cement farm roof, and the legal position is on solar panels on asbestos cement farm roofs.
What a feasibility study should cover for pig unit solar in Plymouth
A project normally starts with a desk-based feasibility study from half-hourly meter data and building dimensions, which should give an indicative system size, generation forecast and self-consumption ratio before anyone visits. Ask each installer what the study includes, what it costs, who carries it out and what the structural and electrical survey covers. This site is independent guidance, not an installer: send your details through the quote form and we reply by email.
See more detail on our pig unit solar page or our wider Plymouth farm-building solar coverage.
Nearby cities — pig unit solar
Nearby cities with a pig unit solar page:
For the full UK coverage map, see all pig unit solar installations or browse every location page.
Frequently asked questions
How much does a pig unit solar install cost in Plymouth?
There is no single price for an install of this kind. The official DESNZ series for 2025/26 gives a mean installed cost of £1,266.84 per kW for 10–50 kW systems (£1,167.29 for non-domestic installations in that band), but it covers MCS installations up to 50 kW across all building types, so larger farm systems are priced from written quotes. The farm solar cost guide sets out the series and what moves a farm quote.
How long does a pig unit install take in Plymouth?
The programme depends on the grid connection study, the structural survey and whether the roof needs work first, so ask each installer for a written programme that names those dependencies. No area-wide timescale is published for this page.
What grants are available for Plymouth-area farm solar?
No scheme specific to this area is claimed here. The current national position on capital allowances, the Smart Export Guarantee and open schemes is on the grants and funding guide, which is checked against primary sources.
Do I need planning permission for pig unit solar in Plymouth?
Most rooftop installs on agricultural buildings near Plymouth fall under Class J, Part 14 GPDO 2015 permitted development, with prior approval from the local planning authority for systems over 50 kW. Listed buildings, AONB designations, and ground-mount above 9m × 9m × 4m height need full planning.
Can we install solar on asbestos cement roofs near Plymouth?
Not directly: installers will not normally fix through asbestos cement sheets, so the roof is replaced or overclad first. HSE says most work on asbestos cement is non-licensed provided the people doing it are informed, instructed and trained, and its task sheet A14 asks whether the sheets can be overlaid with non-asbestos material instead of removed. The options are set out in the guide to overcladding or stripping an asbestos cement farm roof.
How long does a G99 grid connection take?
The distribution network operator (DNO) is the company that owns the local network, set by the site’s location rather than the electricity supplier. It sets its own G99 study timescales and any reinforcement cost, so ask it for current figures in writing before relying on a programme; the process is covered in the guide to DNO grid connection for rural farm solar.