Commercial building solar panels across Cornwall
We arrange roof surveys on offices, retail units, hotels and leisure buildings throughout Cornwall, model what each roof can carry against the building's own consumption, and arrange the design, the grid application and the install through our MCS-certified partner.
- Modelled yield
- 940 kWh/kWp/yr
- Mean across Cornwall towns, EU PVGIS v5.2
- Network operator
- National Grid Electricity Distribution
- G99 applications and export limits
- Commercial stock
- 2,980 office / 5,750 retail
- VOA rating list, March 2025
- Commercial rooftop schemes
- 6 on record
- REPD Q1 2026, districts we cover
- Towns covered
- 8
- Surveys arranged county wide
What the data says about Cornwall
Modelled yield varies across Cornwall: Penzance comes out at 979 kWh per kWp a year against 921 at Camborne. On a 210 kWp commercial roof that gap is about 12,180 kWh a year.
Across the authority our Cornwall towns sit in, the Valuation Office Agency lists 2,980 office and 5,750 retail properties, 160 of them large-format stores and retail warehouses. Source: Valuation Office Agency, Non-domestic rating: business floorspace, 31 March 2025 (published December 2025), counts and floorspace by special category code and local authority district, England and Wales.
The planning database records 6 roof-mounted solar schemes on commercial buildings in the postcode districts we cover here, including Treloggan Road, J Sainsbury, Treyew Road, Morrisons, Priory Road and Lidl Foodstore. These are other organisations' projects, listed from the public record. Source: Renewable Energy Planning Database, Q1 2026.
Connections across the county run through National Grid Electricity Distribution. Anything above 3.68 kW per phase needs a G99 application, and the export limit offered shapes the design, so the question is asked before the array is sized.
- Newquay 940 kWh/kWp
- St Austell 936 kWh/kWp
- Falmouth 943 kWh/kWp
- Truro 940 kWh/kWp
- Camborne 921 kWh/kWp
- Bodmin 929 kWh/kWp
- Penzance 979 kWh/kWp
- Bude 929 kWh/kWp
Book a survey in Cornwall
Send the postcode, the rough footprint and whether you own or lease the building. We come back with what the roof can carry, what it would generate against your consumption, and what the funding routes look like.