Solar Panels for Beef & Cattle Farms in Ireland
Beef and cattle farms have a real case for commercial solar in Ireland, even though the electrical load is lower and more variable than dairy. Water pumping, yard and shed lighting, automatic scrapers, meal feeders and water heating make up the daytime demand, and big unshaded shed roofs give you the space to cover it. The TAMS 3 Solar Capital Investment Scheme pays 60% of the cost on systems up to 62 kWp, which keeps the payback short on a well-matched system. Compare quotes from installers who work on farms.
Fact-checked by John Rooney, Solar Energy Editor. Editorial policy
Quick Answer
Most Irish beef and cattle farms install 6-50 kWp of rooftop solar, with 11 kWp the common sweet spot (planning-exempt on agricultural buildings). Sized to water pumping, yard lighting and scrapers, with a hot-water diversion or battery to soak up midday surplus, an 11 kWp system costs roughly €13,200–€16,500 before grant. It falls to €5,280–€6,600 after the 60% TAMS 3 grant or €7,260–€9,075 after the NDMG, and pays back in 3–4 years with TAMS or 5–6 years with the NDMG, with about 40% of the output used on the farm. TAMS applications are ranked, and only about 1 in 10 solar applications were being approved in October 2026.
Why solar suits beef and cattle farms
A beef or cattle farm has plenty of roof and a steady, if modest, daytime electrical load. Water pumping to troughs and tanks runs through the day, yard and shed lighting covers the dark mornings and evenings of the housing season, and automatic scrapers and meal feeders cycle on a timer. None of these loads are as heavy as dairy milk cooling, so beef systems are smaller, but the demand still falls largely in daylight, which is what makes self-consumed solar worthwhile.
The honest picture is that beef load is lower and more variable than dairy. A suckler or finishing unit does not have the morning and evening cooling peaks that anchor a dairy load, so the value of a system depends on matching it carefully to your pumping, lighting and feeding pattern. A hot-water diversion device or a battery helps a lot here, soaking up the midday surplus that would otherwise be exported cheaply and shifting it into water heating or evening use.
Roof space is rarely the constraint. A modern cubicle shed, slatted house, fodder store or machinery shed gives a large, unshaded, often south or east–west facing roof, far more than a house. That means you can size the system to the load rather than to the available area. For the wider picture across all farm types, see our farm solar guide.
Water pumping
Pumping to drinking troughs and storage tanks is a steady daytime load on most cattle farms and lines up well with solar generation.
Yard & shed lighting
Lighting, automatic scrapers and meal feeders draw power through the housing season, much of it during daylight hours.
Water heating
Wash-down and utility water heating is an ideal home for surplus midday generation via a hot-water diversion device.
What size solar system does a beef farm need?
Most Irish beef and cattle farms install between 6 and 50 kWp. 11 kWp is the common sweet spot because it stays planning-exempt on an agricultural building, so it is the default starting point for a typical suckler or finishing unit. Because beef load is lower than dairy, many farms sit at or below 11 kWp and only larger finishing operations, intensive housing or significant water heating justify 20–50 kWp. That is still inside the 62 kWp TAMS 3 limit, and the Non-Domestic Microgen Grant is the alternative. You may need planning for the part over the exemption cap.
| Herd Size | Typical System | Panels (approx.) | Annual Generation | Best Grant Route |
|---|---|---|---|---|
| Up to 50 cattle | 6–8 kWp | 14–18 | ~5,000–6,900 kWh | TAMS 3 (60%) or NDMG |
| 50–120 cattle | 11 kWp | ~26 | ~9,500 kWh | TAMS 3 (60%) or NDMG |
| 120–250 cattle | 15–30 kWp | 34–69 | ~13,000–26,000 kWh | TAMS 3 (60%) or NDMG |
| 250+ / intensive finishing | 30–50 kWp | 69–115 | ~26,000–43,000 kWh | TAMS 3 (60%) or NDMG |
Generation assumes the average Irish yield of around 860 kWh per kWp per year. Actual figures depend on roof pitch, orientation and shading. Because beef load is lower and more variable than dairy, a site survey and a year of meter data matter even more here, oversizing past your pumping and lighting load just pushes more cheap export rather than displacing import.
Beef farm solar grants, ACA and payback
Enhanced rate: for applications from 6 October 2026 to 6 July 2027 the NDMG is doubled, to a maximum of €325,200. SEAI pays the lower of the doubled per-kWp rate or 45% of the invoiced cost, up from about 23% of the cost of installation. The grant and payback figures on this page use the enhanced rate. Applications made before 6 October 2026 are not increased, and the standard rate (up to €162,600) returns after 6 July 2027 unless SEAI extends it. See what the 45% rate means.
For beef and cattle farms the headline grant is TAMS 3, not the standard SEAI grant. The TAMS 3 Solar Capital Investment Scheme funds 60% of the cost of on-farm solar for all farmers, under a ring-fenced €90,000 investment ceiling (a maximum grant of €54,000), for systems up to 62 kWp. Batteries are eligible. Applications are ranked, and the IFA said in October 2026 that only about 1 in 10 solar applications were being approved. The Clean Export Guarantee only applies up to 6 kW, so surplus from a larger farm system is paid at a negotiated rate of about 10c/kWh.
The SEAI Non-Domestic Microgeneration Grant (NDMG) is the other route. It pays up to €325,200 for applications until 6 July 2027, with no ranking, for systems up to 1,000 kWp, though it does not cover batteries. Above 62 kWp it is the only one of the two that applies. You apply under one scheme or the other, not both. With TAMS approval so uncertain, the NDMG is the surer route while the enhanced rate lasts.
| System | Gross Cost (est.) | Net After TAMS 3 (60%) | Net After NDMG | Payback (TAMS 3) | Payback (NDMG) |
|---|---|---|---|---|---|
| 6 kWp | €7,200–€9,000 | €2,880–€3,600 | €3,960–€4,950 | 3–4 years | 5–6 years |
| 11 kWp | €13,200–€16,500 | €5,280–€6,600 | €7,260–€9,075 | 3–4 years | 5–6 years |
| 20 kWp | €24,000–€30,000 | €9,600–€12,000 | €13,200–€16,800 | 3–4 years | 5–6 years |
| 50 kWp | €50,000–€65,000 | €20,000–€26,000 | €27,500–€39,800 | 3–4 years | 4–6 years |
Installed cost runs roughly €1,000–€1,300 per kWp for 21–100 kWp, and €1,200–€1,500 per kWp for smaller systems. Paybacks assume about 40% of the output is used on the farm, typical of a dairy farm without a battery (35–45%); a beef farm's lower, more variable load can mean less. Figures are estimates for 2026 and exclude battery storage, which TAMS 3 covers and the NDMG does not.
Accelerated Capital Allowance
Farms trading as a company can claim the Accelerated Capital Allowance (ACA), writing off 100% of qualifying solar and battery cost against profits in year one through the Triple-E register. Sole-trader farms should check the available capital allowances with their accountant.
Where the savings come from
Commercial electricity costs around 27c/kWh to import, while exported surplus above 6 kW earns about 10c/kWh, so displacing your own pumping and lighting load is worth far more than exporting. Beef load is lower and more variable than dairy, and a dairy farm without a battery only uses about 35–45% of its output, so right-sizing and a hot-water diversion or battery are what protect the return.
Roof, planning and install specifics for beef farms
The practical details on a beef or cattle farm differ from a warehouse or office, and from a dairy farm. Plan for these before you commit to a system size.
| Factor | What to check on a beef farm |
|---|---|
| Roof structure | Older slatted houses and fodder stores may have light-gauge purlins or fibre-cement sheeting; an installer should confirm the roof carries the panel and mounting load before fixing. |
| Planning | Up to 11 kWp on an agricultural building is planning-exempt under the rooftop exemption; larger arrays or ground-mount may need permission. |
| Load matching | Beef load is lower and more variable than dairy; a battery or hot-water diversion shifts midday surplus into water heating and evening use to lift self-consumption. |
| Grid connection | ESB Networks NC6 covers smaller systems and NC7 covers larger ones up to 200kW; inverters must meet EN 50549. |
| Seasonality | Housing-season loads peak in winter when solar yield is lowest, so size to the year-round pumping and lighting base rather than peak winter demand. |
Battery or hot-water diversion?
Because beef load is modest and falls away in the middle of the day, midday surplus is common. A hot-water diversion device is the cheapest way to soak it up by heating wash-down and utility water. A battery costs more but can shift power into the early-morning and evening yard and feeding loads of the housing season. On a lower-load beef farm the diversion device is often the better starting point, with a battery added only if your demand profile justifies it.
Beef & Cattle Farm Solar FAQ
How big a solar system does a beef farm need?
Most Irish beef and cattle farms install 6-50 kWp. An 11 kWp system suits a typical suckler or finishing unit and stays planning-exempt on agricultural buildings. Because beef load is lower than dairy, many farms sit below 11 kWp, and only larger finishing operations or heavy water heating justify 20-50 kWp. TAMS 3 covers systems up to 62 kWp, and the NDMG covers larger arrays. Sizing should be matched to your water pumping, yard lighting and feeding loads, ideally using a year of meter data.
What grant can a beef farm get for solar panels?
The headline grant for beef and cattle farms is the TAMS 3 Solar Capital Investment Scheme, which funds 60% of on-farm solar for all farmers, on a ring-fenced €90,000 investment ceiling (a maximum grant of €54,000) for systems up to 62 kWp, batteries included. Applications are ranked, and the IFA said in October 2026 that only about 1 in 10 solar applications were being approved. The SEAI Non-Domestic Microgeneration Grant (NDMG) pays up to €325,200 for applications until 6 July 2027, with no ranking, though it does not cover batteries. You apply under one scheme, not both. With TAMS approval so uncertain, the NDMG is the surer route while the enhanced rate lasts.
Does an 11 kWp beef farm solar system need planning permission?
No. Rooftop solar up to 11 kWp on an agricultural building is planning-exempt in Ireland, which is why 11 kWp is the common starting point for beef farms. Larger arrays beyond the exemption cap, or ground-mounted systems, may need planning permission. Your installer should confirm the exemption applies to your specific building.
Is solar worth it on a beef farm with lower electricity use?
It can be, but right-sizing matters more than on a dairy farm. A dairy farm without a battery uses about 35-45% of its solar output on the farm, and a beef farm's lower, more variable load can mean less. Matching the array to your water pumping, yard lighting and feeding loads, and adding a hot-water diversion device or battery to soak up midday surplus, is what keeps a beef system worthwhile.
What is the payback on solar panels for a beef farm?
An 11 kWp system costs roughly €13,200–€16,500 before grant. After the 60% TAMS 3 grant it falls to €5,280–€6,600, a payback of 3–4 years; after the NDMG it is €7,260–€9,075, a payback of 5–6 years. Across 11-62 kWp, payback is 3–4 years with TAMS 3, 4–6 years with the NDMG and 7–10 years with no grant. That assumes about 40% of the output is used on the farm. Displacing import at about 27c/kWh is worth far more than exporting surplus at about 10c/kWh.
Related Guides
Solar for Farms
On-farm solar: TAMS 3 grant, sizing by enterprise, ROI.
Solar for Dairy Farms
Dairy farm solar: milking load, TAMS 3 grant, sizing, ROI.
Farm Solar
Farm solar panels: TAMS 3 grant (60%), costs, and sizing by farm type.
Commercial Solar Grants
SEAI NDMG up to €325,200, TAMS 3 for farms, ACA tax relief, and how to apply.
Sources
- DAFM, TAMS 3 (Targeted Agriculture Modernisation Scheme)
- SEAI, Non-Domestic Microgen Scheme (NDMG)
- SEAI, Accelerated Capital Allowance
- ESB Networks, Micro and Small-Scale Generation
Last updated: November 2026
John Rooney is the editor of Solar Info and has been covering the Irish solar energy market since 2023. He fact-checks all content against official SEAI data and maintains relationships with SEAI-registered installers across Ireland.
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