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Commercial solar installers in Abergavenny

Abergavenny is home to Mill Street Industrial Estate, Union Road and Westgate Business Park, Llanfoist. This page sets out the grid, planning and roof issues for a commercial solar project here, what a business roof could generate, and how to get a free site survey.

Key facts

Council area Monmouthshire
Population 13,695 (Abergavenny built-up area, usual residents, Census 2021 (ONS, rounded to the nearest five))
Network operator National Grid Electricity Distribution (South Wales)
Main employment areas Mill Street Industrial Estate; Union Road; Westgate Business Park, Llanfoist
Indicative yield About 977 kWh per kWp a year (south facing, 30 degrees)
Nation support page Grants and reliefs in Wales

Where businesses are in Abergavenny

  • Mill Street Industrial Estate: A protected employment site of 2.13 hectares, fully developed, about half a mile south of the town centre; occupiers include Screwfix and Plumb Centre, and it is marketed as the town's leading trade counter location.
  • Union Road: A protected employment site of 3.53 hectares near Nevill Hall Hospital, fully developed with established industrial and warehouse uses, including a small recycling depot with an adjacent array of PV panels completed in 2016 to 2017.
  • Westgate Business Park, Llanfoist: An allocated industrial and business site of 5 hectares across the river in Llanfoist, largely developed with a hotel, pub, food outlets and a care home; about 1.3 hectares was still undeveloped at the council's March 2023 survey.

Large employers and sectors with sites here include:

  • Healthcare (Nevill Hall Hospital): Nevill Hall is one of Aneurin Bevan University Health Board's three Enhanced Local General Hospitals, and in June 2025 the board opened an engagement on how services there should develop alongside the Grange University Hospital.
  • Food and tourism (Abergavenny Food Festival): Started in 1999 by two local farmers, the festival is held on the third weekend in September (19 and 20 September in 2026) with over 200 exhibitors across the Market Hall, the Brewery Yards and Abergavenny Castle.

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

Abergavenny is served by National Grid Electricity Distribution (South Wales). 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 Abergavenny

Planning in Abergavenny is decided by Monmouthshire 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 Abergavenny Conservation Area, designated on 5 June 1970, covers about 164.4 hectares, so check whether a building is inside it before planning roof panels.
  • 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 principal 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 Abergavenny could generate

Modelled with PVGIS for the town centre, a south-facing roof at 30 degrees produces about 977 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 97,700 kWh a year
Used on site 70% at 24p = £16,414 saved
Exported 30% at 5p = £1,466 earned
Total a year About £17,879
Simple payback About 5.0 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

  • 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 Monmouthshire

At the end of 2025, Monmouthshire had 6,145 solar PV installations with 93.2 MW of capacity, up 19% since 2020, according to government figures. The Monmouthshire page has the full local figures and how they compare.

Nearby towns

Sources

Frequently asked questions

Who is the electricity network operator in Abergavenny?

National Grid Electricity Distribution (South Wales). 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 Abergavenny?

About 97,700 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 £17,879 a year. Your own roof, orientation and use will change this.

Can a business in Abergavenny 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.

Free, with no obligation

See what your business could qualify for

Find out which grants, tax relief (capital allowances) and finance options your business may qualify for, and roughly what solar could save. It comes from a free call with us and a free survey with one MCS certified installer.

Tell us about the site in under two minutes. We review every enquiry, call you to understand the building and your electricity use, and if the site looks suitable we arrange a free survey with one MCS certified installer matched to it. We match you with one of 130+ MCS certified installers across the UK, and only those who pass our checks.

  • On site or by video callWhichever suits the project and its stage.
  • Roof, structure, grid and energy useThe four things that decide whether solar works.
  • A clear proposalSystem size, cost range, savings and payback for your board.
  • One installer onlyYour details are not passed around a list of companies.

Want the detail first? Read how a survey works and what the survey includes.

See what your business could qualify for

Grants, tax relief and finance your business may qualify for, and roughly what solar could save. Six quick questions.

  • PPA
  • Buy outright
  • Hire purchase
  • Local schemes
Question 1 of 10: What kind of survey would you like?

Tap one to start.

Question 2 of 10: Do you own the building, or is it leased?

Tap one to carry on.

Question 3 of 10: Is this your first time looking into solar?

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Question 4 of 10: What kind of site is it?

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Question 5 of 10: Roughly what do you spend on electricity a month?

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Question 6 of 10: When are you hoping to go ahead?

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Where's the site?

So we match you with an installer who covers your area.

Who should we ask for?

The person we'll speak to about the survey.

What's the best mobile for you?

We'll ring to talk through the site. UK mobiles only.

Last one. Where should we email you?

Your survey details go here.

Free site survey, no obligation.

See what you qualify for