Solar Panels for Farms in Orkney

An independent guide to solar on farms in Orkney and the wider Orkney Islands area, including Caithness, Shetland, Northern Highlands: what it costs, the planning rules, the grid and the funding position, from official sources.

Agricultural solar panels in Orkney

Orkney is one of the most distinctive farming archipelagos in the UK, and one of the most rewarding places to install agricultural solar. The islands are dominated by livestock: Orkney beef cattle finished on lush, salt-washed improved grassland, alongside extensive sheep flocks and a scattering of mixed and arable units around the fertile lowlands of Mainland, South Ronaldsay and the North and South Isles. Steadings here run heavy, year-round electrical loads — milking and dairy cooling, beef-shed lighting and ventilation, water pumping, grain and feed handling, and increasingly battery and EV charging. With Orkney’s retail electricity tariffs sitting above the UK mainland average and the islands fed by a constrained subsea link, every kilowatt-hour a farm generates behind the meter is worth markedly more than it would be in lowland England. That is precisely why solar pays so well this far north.

The grid here is operated by Scottish and Southern Electricity Networks (SSEN / SHEPD), and Orkney has long been a global reference case for distributed renewable energy — it routinely generates more electricity than it consumes. The latitude (59°N) shapes the irradiance profile sharply: Orkney sees long summer days of 18-plus hours of daylight that pack 30-40% of the annual yield into June and July, against very low, short winter sun. Annual irradiance is lower than southern England, but farm self-consumption is high and import tariffs are steep, and payback depends on how much of the output the farm uses itself. The trick is to size PV around the farm’s own demand — milking parlours, sheds, cold stores and pumps — rather than chasing export, and to pair it with storage so summer generation carries into the long, dark evenings and shoulder months. See our full farm solar cost breakdown for the per-kWp economics.

Farm solar across Orkney by district

System sizes reflect typical Orkney steading loads — beef and dairy sheds, sheep handling units, grain stores and the high self-consumption that drives payback in these islands.

Roof-mounted arrays on existing beef and dairy sheds are the workhorse of Orkney farm solar — south- and east-facing steading roofs capture the long morning and evening summer sun, and battery storage shifts that generation into milking peaks and dark-month demand.

Grants and tax relief for Orkney farms

Orkney is in Scotland, so the funding landscape is entirely Scottish — the England-only Farming Equipment and Technology Fund (FETF) does not apply here, and any installer quoting it for an Orkney farm is working from the wrong nation’s playbook. No Scottish grant pays for solar panels. The Future Farming Investment Scheme 2025 round listed solar panels and battery storage as not eligible; its next round is announced for winter 2026 (50% of eligible costs, up to £20,000), with the item list not yet published. CARES (Local Energy Scotland) is for non-profit community groups, not farms; the Business Energy Scotland SME Loan is not accepting new solar PV applications; and the Scottish Rural Development Programme (SRDP) and the Sustainable Agriculture Capital Grant Scheme are closed and do not fund farm solar.

Two UK-wide mechanisms do apply. Solar panels are special-rate plant, and most farms can deduct the whole cost in year one through the £1 million Annual Investment Allowance (AIA); a partnership with a company as a member cannot claim it, and a public grant reduces the cost you can claim on. And the Smart Export Guarantee (SEG) pays for any surplus units exported to the grid, at a rate each licensed supplier sets, though on Orkney the smarter play is almost always to self-consume and store rather than export into a constrained network. Our grants and funding guide walks through the status of each Scottish scheme and how tax relief applies.

Planning and grid in Orkney

Orkney has no National Parks, but its landscape and heritage protections are real and matter for siting. The islands hold several National Scenic Areas (including Hoy and West Mainland) and the Heart of Neolithic Orkney World Heritage Site around Skara Brae, Maeshowe, the Ring of Brodgar and the Stones of Stenness — designations that make ground-mounted solar in those settings sensitive and consent-dependent. The good news for most farmers is that rooftop solar on a farm building is normally permitted development under Class 6J, with no capacity limit since May 2024 and nothing more than 1 m proud, so a panel array on a beef shed, dairy or grain store usually needs no full planning application. Class 6J excludes listed buildings, National Parks, National Scenic Areas and sites within 3 km of an aerodrome, and free-standing panels are limited to 12 m². Larger ground-mounted arrays, and any rooftop array inside a National Scenic Area, will need a planning application to Orkney Islands Council and a landscape assessment — so most Orkney projects are best kept on existing roofs.

On the grid side, the distribution network operator is Scottish and Southern Electricity Networks (SSEN / SHEPD). Any farm array connecting to the grid goes through the G99 connection process (or G98 for the smallest single-phase systems), and Orkney sits within an Active Network Management (ANM) zone where export can be curtailed at peak constraint periods. Systems sized around on-site consumption — typically under 50 kWp — usually sit comfortably below the thresholds that trigger meaningful curtailment. The installer normally handles the full SSEN application, ANM assessment and DNO sign-off, and should design around the constraint rather than fighting it.

Typical Orkney farm solar projects

Every Orkney steading is different, but most fall into three or four recognisable patterns. These are representative enterprise-type ranges, not named installations:

• Beef-finishing unit (Mainland): a 30-50 kWp roof array across cattle sheds and a feed store, paired with a 40-60 kWh LiFePO4 battery to cover shed lighting, ventilation and water heating through the dark months.

• Dairy holding (East/West Mainland): a 25-40 kWp system sized to milking, cooling and vacuum-pump loads, with storage to shift surplus into the next milking. Self-consumption is very high.

• Sheep and mixed grassland unit (Birsay, South Ronaldsay): a 15-25 kWp array on the steading roof covering handling sheds, water pumping and general yard load, often without a large battery.

• Larger mixed estate with grain handling: a 50 kWp+ rooftop system across multiple buildings, battery-backed, designed to keep export below the ANM curtailment threshold while displacing the bulk of on-farm import.

For reference, DESNZ’s Solar PV cost data for 2025/26 put the median installed price of a 10–50 kW system in Great Britain at £1,262 per kW (including VAT where charged, excluding batteries). SolarPanelsForFarms.uk is an independent guide, not an installer: an Orkney enquiry goes to a matched MCS-certified installer covering the area, which returns a desk feasibility within 3 working days, and any proposal should rest on a structural and wind-loading survey for Orkney’s exposed coastal conditions.

For costs by system size see what agricultural solar panels cost; for funding, farm solar grants and capital allowances; for the regional picture, farm solar by UK region.