Commercial building solar panels across Hertfordshire
We arrange roof surveys on offices, retail units, hotels and leisure buildings throughout Hertfordshire, 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
- 900 kWh/kWp/yr
- Mean across Hertfordshire towns, EU PVGIS v5.2
- Network operator
- UK Power Networks
- G99 applications and export limits
- Commercial stock
- 6,270 office / 5,620 retail
- VOA rating list, March 2025
- Commercial rooftop schemes
- 12 on record
- REPD Q1 2026, districts we cover
- Towns covered
- 10
- Surveys arranged county wide
What the data says about Hertfordshire
Modelled yield is consistent across Hertfordshire, from 895 kWh per kWp a year at Borehamwood to 911 at Bishop's Stortford. At that spread, location does not decide the case. Daytime consumption does.
Across the 7 authorities our Hertfordshire towns sit in, the Valuation Office Agency lists 6,270 office and 5,620 retail properties, 310 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 12 roof-mounted solar schemes on commercial buildings in the postcode districts we cover here, including Tesco Store The Forum Stevenage, Stevenage Leisure Park, Kings Way, Roaring Meg Retail Park, London Road and David Lloyd Fitness Centre, Kings Way. These are other organisations' projects, listed from the public record. Source: Renewable Energy Planning Database, Q1 2026.
Connections across the county run through UK Power Networks. 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.
- Watford 898 kWh/kWp
- Hemel Hempstead 895 kWh/kWp
- Stevenage 901 kWh/kWp
- St Albans 901 kWh/kWp
- Welwyn Garden City 899 kWh/kWp
- Hatfield 901 kWh/kWp
- Bishop's Stortford 911 kWh/kWp
- Borehamwood 895 kWh/kWp
- Harpenden 896 kWh/kWp
- Hertford 901 kWh/kWp
Book a survey in Hertfordshire
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.