Commercial solar installers in Ammanford

Key facts

Where businesses are in Ammanford

• Parc Hendre (Capel Hendre Industrial Estate): Well established industrial estate about three miles south west of Ammanford, served by the A483 to junction 49 of the M4, where Carmarthenshire Council sells serviced plots for manufacturing and other B1, B2 and B8 uses. Window maker Victorian Sliders is based there.
• Cilyrychen Industrial Estate: Industrial estate near Ammanford at Llandybie, where steel fabricator Morgan Marine bought a vacant Welsh Government factory in 2025 and planned a £1.25 million refurbishment.

Large employers and sectors with sites here include:

• Window manufacturing (Victorian Sliders): Victorian Sliders makes PVC-U vertical sliding sash windows at a site of about 240,000 sq ft near Ammanford, extruding its own profiles, making glass units and running an in-house recycling plant.
• Steel fabrication (Morgan Marine): Morgan Marine, which marks 60 years in business in 2025, employed 211 people in February 2025 and planned 20 new jobs over three years at its Cilyrychen site, where it said it may add solar panels and wind turbines.

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

Ammanford is served by National Grid Electricity Distribution (South Wales licence area). 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 Ammanford

Planning in Ammanford is decided by Carmarthenshire council under the Welsh rules. Many non-domestic roofs are covered by Welsh permitted development, with conditions, but not within 3 km of an airport or aerodrome or on listed buildings.

Points that come up locally:

• In Wales, roof panels on a non-domestic building should project no more than 200mm from the roof, stay at least 1 metre from the roof edge and, on a flat roof, rise no more than 1 metre, but a listed building needs planning permission and listed building consent, and in a conservation area panels on a principal or side elevation wall visible from the highway need planning consent.

Our guides on listed buildings and conservation areas explain what these mean for a solar project.

What a business roof in Ammanford could generate

Modelled with PVGIS for the town centre, a south-facing roof at 30 degrees produces about 939 kWh per kWp a year.

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

• Development Bank of Wales Green Business Loan Scheme: Discounted fixed interest rate green business loans for energy efficiency measures and low carbon projects, with renewables including solar PV listed as typical eligible projects; capital repayment holidays are available and the loan term is linked to the project's payback. Limited companies, sole traders and partnerships must be based in Wales, have traded for at least two years and have at least one set of filed annual accounts. A grant of up to 50% of the cost of a detailed energy audit by an accredited independent expert, to a maximum of £10,000 (£20,000 total costs), is also offered. Check the scheme's own page for eligibility and closing dates.

National reliefs apply too: see grants and reliefs in Wales.

Solar across Carmarthenshire

At the end of 2025, Carmarthenshire had 10,214 solar PV installations with 210.0 MW of capacity, up 79% since 2020, according to government figures. The Carmarthenshire page has the full local figures and how they compare.

Nearby towns

• Llanelli, about 11 miles away
• Neath, about 12 miles away
• Carmarthen, about 15 miles away
• Port Talbot, about 16 miles away

Sources

• ons.gov.uk: census2021
• ons.gov.uk: datadownload.xlsx
• ggf.org.uk: victorian sliders
• carmarthenshire.gov.wales: ammanford
• businesswales.gov.wales: enterprise zones
• gov.uk: maps of celtic freeport tax sites
• gov.uk: maps of anglesey freeport tax sites
• gov.uk: maps of flintshire and wrexham investment zone tax
• carmarthenshire.gov.wales: plot 8 parc hendre
• gov.wales: company create new jobs after purchase welsh government
• manufacturing-today.com: victorian sliders framing the future with innovation and
• gov.wales: planning permission solar panels non domestic
• developmentbank.wales: green
• 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.