Commercial solar installers in Pembroke Dock

Key facts

Where businesses are in Pembroke Dock

• Pembroke Port (Pembroke Dock Marine): The Port of Milford Haven's cargo and ferry port, where the £60 million Pembroke Dock Marine project has added open laydown and fabrication areas, a larger slipway, workboat berthing and heritage buildings converted into offices and workshops at the Gate 4 site.
• Cleddau Bridge Business Park (Llanion Hill): A business park by the Cleddau Bridge where the Welsh Government is selling two level development plots, C2 and C3, totalling 5.35 acres for commercial uses, subject to planning.
• Pembrokeshire Science and Technology Park: A site in Pembroke Dock, home to the Bridge Innovation Centre, where Pembrokeshire County Council lets small light industrial and office units.

Large employers and sectors with sites here include:

• Marine energy and engineering: Pembroke Dock Marine, a £60 million Swansea Bay City Deal project led by the Port of Milford Haven with ORE Catapult, Marine Energy Wales and Celtic Sea Power, is expected to generate over 1,800 jobs.
• Ferry services (Irish Ferries): Irish Ferries runs two crossings a day between Pembroke Dock and Rosslare on the Isle of Innisfree, taking just over four hours port to port.

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.

Enterprise, investment and freeport zones

• Celtic Freeport: Pembroke Dock is one of the Freeport's Milford Haven tax sites, designated with effect from 26 November 2024; Welsh Freeport tax reliefs are available until 30 September 2034.

These zones can bring business rates relief or enhanced capital allowances for eligible firms on qualifying sites; check the current terms with the zone before relying on them.

Grid connection

Pembroke Dock 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 Pembroke Dock

Planning in Pembroke Dock is decided by Pembrokeshire 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:

• The Pembroke Dock Conservation Area, designated on 28 September 1994, covers about 144.3 hectares of the planned dockyard town, so many roofs in the town need more care.
• In Wales, panels on a non-domestic building are usually permitted development if they project no more than 200mm from the roof or wall (1 metre above a flat roof), but in a conservation area panels on a front or side elevation wall visible from the road need planning consent, and a listed building needs planning permission and listed building consent.

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

What a business roof in Pembroke Dock could generate

Modelled with PVGIS for the town centre, a south-facing roof at 30 degrees produces about 1,064 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 loans for energy efficiency measures and low carbon projects, with renewables including solar PV listed as typical eligible projects. 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, 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 Pembrokeshire

At the end of 2025, Pembrokeshire had 9,059 solar PV installations with 248.9 MW of capacity, up 23% since 2020, according to government figures. The Pembrokeshire page has the full local figures and how they compare.

Nearby towns

• Haverfordwest, about 7 miles away
• Carmarthen, about 29 miles away
• Llanelli, about 34 miles away
• Ammanford, about 42 miles away

Sources

• ons.gov.uk: census2021
• ons.gov.uk: datadownload.xlsx
• mhpa.co.uk: pembroke dock marine
• propertydatabase.business.gov.wales: Land at Llanion Hill Cleddau Bridge Business Park
• propertydatabase.business.gov.wales: Bridge Innovation Centre Growth Unit 1 Pembrokeshire Science
• irishferries.com: rosslare pembroke
• gov.uk: maps of celtic freeport tax sites
• gov.uk: extension to when tax and national insurance contributions
• businesswales.gov.wales: haven waterway enterprise zone
• heritagecheck.co.uk: pembroke dock
• 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.