Commercial & Industrial Solar in Winchester (SO21)
Data-driven view of commercial solar potential in the SO21 postcode district. We track 1,766 active commercial and industrial businesses in this area, with 184 Display Energy Certificates on record. Designed for installers, landlords, and funders assessing where to deploy solar PPA projects.
Active C&I businesses
1,766
commercial & industrial
Annual yield
1,039
kWh per kWp installed
Solar planning 12m
5
20% approved
Avg DEC rating
C
184 certificates
Solar potential in Winchester (SO21)
A typical south-facing roof in SO21 produces approximately 1,039 kWh per kWp of installed capacity each year. For a mid-sized commercial installation of 250 kWp, that translates to roughly 260 MWh of generation each year, enough to offset a significant portion of typical warehouse, logistics, or light-industrial electricity demand.
Actual yield varies with roof orientation, pitch, shading, and inverter efficiency. The figure above represents clear-sky, unshaded south-facing potential.
Planning context
Over the last 12 months, 5 solar planning applications have been submitted in the SO21 area, with an approval rate of 20%. This is a signal of local planning authority appetite for solar, installers and funders should factor this into risk assessments for new projects.
Commercial activity mix in SO21
The top commercial sector groups by active business count in this postcode district are:
- Management consulting, 199 active businesses
- Real estate, 173 active businesses
- IT services, 107 active businesses
- Other professional, 103 active businesses
- Construction of buildings, 90 active businesses
Free solar assessment for a site in Winchester (SO21)
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Sectors with strongest solar match in this area
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