Key facts
| Council area | East Ayrshire |
| Population | 8,825 (Cumnock locality, Scotland's Census 2022 (NRS figure as published by City Population)) |
| Network operator | SP Energy Networks (SP Distribution, Central and Southern Scotland) |
| Main employment areas | Caponacre Industrial Estate; Cumnock Business Park; Ayr Road industrial sites |
| Indicative yield | About 855 kWh per kWp a year (south facing, 30 degrees) |
| Nation support page | Grants and reliefs in Scotland |
Where businesses are in Cumnock
- Caponacre Industrial Estate: A mixed use and business site in East Ayrshire's Local Development Plan 2, described in the council's 2026 delivery programme as fairly well occupied with some vacant land to the south; Emergency One's fire engine works is at Unit 3A.
- Cumnock Business Park: A safeguarded business and industrial site south of the town centre, occupied by Caledonian Bottlers according to the council's 2026 delivery programme.
- Ayr Road industrial sites: Two safeguarded business and industrial sites on Ayr Road, including a former bus depot converted for industry with purpose-built units to the rear; the council's 2026 delivery programme says both are well occupied with no vacant land.
Large employers and sectors with sites here include:
- Fire engine manufacturing (Emergency One): Emergency One, founded in Cumnock in 1989, builds custom fire and rescue vehicles for services in the UK and abroad and says it is the largest employer in the area, with over 250 employees.
- Heritage, tourism and education (The King's Foundation): Dumfries House near Cumnock, an 18th century stately home with a 2,000 acre estate open to the public every day, is the headquarters of The King's Foundation.
Large, simple roofs on distribution sheds and modern industrial units are usually the quickest and cheapest to fit. Older mill, factory and workshop buildings can work well too, but often need a structural survey first, and roofs from before 2000 may contain asbestos cement: see asbestos roofs.
Grid connection
Cumnock is served by SP Energy Networks (SP Distribution, Central and Southern Scotland). Almost every commercial system needs G99 approval from the network operator before it is switched on, and the question is usually how much the local network can take back. Where export is limited, a G100 export limitation scheme can let a larger array connect. See G99 and DNO applications.
Planning in Cumnock
Planning in Cumnock is decided by East Ayrshire council under Scotland's own system. Non-domestic rooftop solar is often permitted development under the Scottish rules, but not on listed buildings, in National Scenic Areas or within 3 km of an aerodrome.
Points that come up locally:
- The Cumnock Conservation Area, first designated in November 1974 and extended in May 1995, covers the historic core around The Square and contains 33 of the town's 43 listed buildings, so roofs in the centre need more care.
- Scotland's Class 6J permitted development right lets solar panels go on non-domestic buildings without planning permission if no part stands more than 1 metre from the building's surface, but not on a listed building or within its curtilage, nor, in a conservation area, on the front elevation or a side elevation fronting a road.
Our guides on listed buildings and conservation areas explain what these mean for a solar project.
What a business roof in Cumnock could generate
Modelled with PVGIS for the town centre, a south-facing roof at 30 degrees produces about 855 kWh per kWp a year.
| Item | Illustrative figure |
|---|---|
| System | 100 kWp, south facing at 30 degrees |
| Installed cost | £900 per kWp, so £90,000 excluding VAT |
| Generation | About 85,500 kWh a year |
| Used on site | 70% at 24p = £14,364 saved |
| Exported | 30% at 5p = £1,283 earned |
| Total a year | About £15,646 |
| Simple payback | About 5.8 years before tax relief |
Illustrative, not a quote: the same sums as our commercial solar calculator. A company paying corporation tax can usually shorten the payback with capital allowances.
Funding and support
- Business Energy Scotland SME Loan: Interest-free loans of £1,000 to £130,000, repaid over 8 years. Cashback of 75% of eligible costs, up to £20,000 for energy efficiency measures and up to £10,000 for heat pumps, biomass boilers and solar thermal, with a maximum of £30,000 per business. Applications are processed on a rolling basis all year round, subject to the overall availability of loan funds. The page says the scheme is not accepting new applications for solar PV projects. Check the scheme's own page for eligibility and closing dates.
National reliefs apply too: see grants and reliefs in Scotland.
Solar across East Ayrshire
At the end of 2025, East Ayrshire had 4,111 solar PV installations with 13.5 MW of capacity, up 158% since 2020, according to government figures. The East Ayrshire page has the full local figures and how they compare.
Nearby towns
- Kilmarnock, about 14 miles away
- Ayr, about 14 miles away
- Irvine, about 19 miles away
- East Kilbride, about 21 miles away
Sources
- citypopulation.de: S52000178 cumnock
- east-ayrshire.gov.uk: ldp2 delivery programme appendix
- emergencyone.co.uk
- kings-foundation.org: dumfries house
- gov.uk: maps of uk freeports
- assets.publishing.service.gov.uk: Investment Zones Pack Dec 2025
- east-ayrshire.gov.uk: CumnockConservationAreaAppraisal
- gov.scot
- businessenergyscotland.org: sme loan
- Yield: PVGIS 5.3 (European Commission Joint Research Centre), SARAH3 data, 14% system losses, for the town centre, modelled 4 November 2026.
- Council area figures: DESNZ, renewable electricity by local authority 2014 to 2025.
Frequently asked questions
Who is the electricity network operator in Cumnock?
SP Energy Networks (SP Distribution, Central and Southern Scotland). Most commercial solar systems need its G99 approval before they are switched on. The operator follows the postcode, so confirm yours with the Energy Networks Association postcode tool.
How much would a 100 kWp solar system generate in Cumnock?
About 85,500 kWh a year for a south-facing roof at 30 degrees, modelled with PVGIS for the town centre. At 70% used on site at 24p and the rest exported at 5p, that is worth about £15,646 a year. Your own roof, orientation and use will change this.
Can a business in Cumnock get a free solar survey?
Yes. Answer six short questions and we match the site with one MCS certified installer, who surveys it on site or by video call. It is free, with no obligation. Get a free survey.
Related pages
- East Ayrshire4,111 installations, 13.5 MW of solar and about 855 kWh per kWp a year for a south-facing roof.
- ScotlandSP Energy Networks and SSEN connections, NPF4 and Scottish permitted development, the four city low emission zones, the Scottish rates exemption and realistic yields.
- Commercial solar calculatorEstimate commercial solar savings and payback, with the generation, price and cost assumptions shown and sourced, and the limits of a simple estimate explained.
- ScotlandCurrent solar support in Scotland for businesses, community groups, public bodies, schools and farms, with rates, planning and official contacts.
- Planning permissionPermitted development for commercial rooftop solar and car park canopies in England, prior approval, heritage limits, ground-mounted schemes and the other UK nations.