Key facts
| Council area | County Durham |
| Population | 19,750 (Peterlee built-up area, usual residents, Census 2021 (ONS)) |
| Network operator | Northern Powergrid (Northeast licence area) |
| Main employment areas | North West Industrial Estate; South West Industrial Estate |
| Indicative yield | About 944 kWh per kWp a year (south facing, 30 degrees) |
| Nation support page | Grants and reliefs in England |
Where businesses are in Peterlee
- North West Industrial Estate: Industrial estate in Peterlee. BizSpace runs a site there off Mill Hill with 45 workshop, warehouse and storage units over three roads, from 500 to 35,669 sq ft.
- South West Industrial Estate: Established industrial estate close to the A19, where Logicor owns and lets warehouse units such as Units 3-4 Whitehouse Way, a 21,996 sq ft warehouse with offices being refurbished.
Large employers and sectors with sites here include:
- Heavy equipment manufacturing (Caterpillar): Caterpillar's Peterlee plant is the company's worldwide base for designing and manufacturing its articulated trucks, employing hundreds of skilled staff; Business Durham reported its 70,000th articulated truck coming off the line.
- Battery manufacturing (Alexander Battery Technologies): Battery pack manufacturer Alexander Battery Technologies appointed five engineers and a project manager in April 2026 as it expanded its technical team in Peterlee.
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
Peterlee is served by Northern Powergrid (Northeast 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 Peterlee
Peterlee follows the national planning rules for England, decided by County Durham 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 Castle Eden Conservation Area lies two miles south of Peterlee. It was designated in 1976 and extended in 2007, and includes the Grade II* listed Castle and a Registered Historic Park, so sites near it need more care.
Our guides on listed buildings and conservation areas explain what these mean for a solar project.
What a business roof in Peterlee could generate
Modelled with PVGIS for the town centre, a south-facing roof at 30 degrees produces about 944 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 94,400 kWh a year |
| Used on site | 70% at 24p = £15,859 saved |
| Exported | 30% at 5p = £1,416 earned |
| Total a year | About £17,275 |
| Simple payback | About 5.2 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 Efficiency Project (BEEP), Durham County Council: Independent energy audits for eligible businesses across County Durham, after which Durham Business Growth grants can cover up to 40% of costs on projects with a maximum total value of £9,999, while the funding lasts. BEEP says it has helped businesses plan improvements including LED lighting, insulation, heating controls and solar PV. The programme's third phase is due to end at the end of 2026. Check the scheme's own page for eligibility and closing dates.
National reliefs apply too: see grants and reliefs in England.
Solar across County Durham
At the end of 2025, County Durham had 16,892 solar PV installations with 92.7 MW of capacity, up 73% since 2020, according to government figures. The County Durham page has the full local figures and how they compare.
Nearby towns
- Hartlepool, about 7 miles away
- Billingham, about 11 miles away
- Washington, Tyne and Wear, about 12 miles away
- Middlesbrough, about 13 miles away
Sources
- ons.gov.uk: census2021
- ons.gov.uk: datadownload.xlsx
- bizspace.co.uk: peterlee
- logicor.eu: peterlee south west industrial estate
- businessdurham.co.uk: caterpillar s peterlee plant is celebrating the production
- businessdurham.co.uk: peterlee battery pack manufacturer makes six appointments
- northeast-ca.gov.uk: north east enterprise zones
- northeast-ca.gov.uk: north east investment zone
- durham.gov.uk: Castle Eden Conservation Area
- durham.gov.uk: beep
- 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 Peterlee?
Northern Powergrid (Northeast licence area). 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 Peterlee?
About 94,400 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 £17,275 a year. Your own roof, orientation and use will change this.
Can a business in Peterlee 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
- County Durham16,892 installations, 92.7 MW of solar and about 931 kWh per kWp a year for a south-facing roof.
- North EastNorthern Powergrid connections, the Tyneside Clean Air Zone, Teesside and Sunderland manufacturing, Tyne and Tees ports, and Northumberland farming.
- 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.
- EnglandCurrent solar support in England for businesses, schools, public bodies, community groups and farms, plus rates, planning and who to contact.
- 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.