Commercial solar installers in Dover

Key facts

Where businesses are in Dover

• White Cliffs Business Park: Business park at Whitfield on the northern edge of Dover, home to small firms, national brands and services and linked to Dover Priory station and the town centre by the Fastrack bus route.
• Western Docks: A £25 million regeneration project at the Port of Dover, which the council says will open up space for leisure, hotel and residential development.

Large employers and sectors with sites here include:

• Port of Dover: The council describes the Port of Dover as the closest UK port to mainland Europe, handling £144 billion of UK trade and a third of all UK trade with the EU, with the UK's second busiest cruise terminal.
• Freight and border services: Priority Freight's companies are registered at White Cliffs Business Park, where in December 2021 the council announced that Dover Port Health Authority would carry out food, plant and animal inspections at Bastion Point from spring 2022.

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

Dover is served by UK Power Networks (South Eastern Power Networks 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 Dover

Dover follows the national planning rules for England, decided by Dover council. Rooftop solar on most non-domestic buildings is permitted development, within height and edge limits, and systems above 50 kW need a prior approval application covering design and glare.

Points that come up locally:

• The Dover Town Centre Conservation Area, first designated in 1988, is centred on Cannon Street and Biggin Street, the main shopping streets, so roofs there need extra care.

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

What a business roof in Dover could generate

Modelled with PVGIS for the town centre, a south-facing roof at 30 degrees produces about 1,112 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

We found no council or regional grant for business solar open in Dover at the time of writing (November 2026). National reliefs still apply, such as capital allowances and, in England, the business rates exemption for onsite renewables: see grants and reliefs in England.

Solar across Dover

At the end of 2025, Dover had 3,435 solar PV installations with 40.0 MW of capacity, up 29% since 2020, according to government figures. The Dover page has the full local figures and how they compare.

Nearby towns

• Folkestone, about 7 miles away
• Deal, about 7 miles away
• Ramsgate, about 15 miles away
• Margate, about 19 miles away

Sources

• ons.gov.uk: census2021
• ons.gov.uk: datadownload.xlsx
• investindover.co.uk: key locations
• modern-slavery-statement-registry.service.gov.uk: group
• kentonline.co.uk: location of second inland border facility announced 258841
• democracy.kent.gov.uk: Developing Discovery Park Sandwich Task Force Report
• dover.gov.uk: Dover Town Centre Conservation Area Character Appraisal
• 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.