Sunseam

Commercial solar in Cardiff

Sunseam ranks every suitable commercial roof in Cardiff (Wales) by solar opportunity, so installers find qualified sites and owners see what their roof is worth.

1,037
Commercial roofs ranked
297.9 MWp
Combined rooftop potential
302
At energy Band D–G

Together these roofs represent an estimated £47,249,240 in potential annual electricity savings from on-site solar.

Frequently asked questions

How many commercial roofs suit solar in Cardiff?

Sunseam ranks 1,037 large commercial roofs in Cardiff, with a combined rooftop-solar potential of about 297.9 MWp.

Which buildings in Cardiff face MEES pressure?

Around 302 of the ranked buildings in Cardiff sit at EPC Band D–G. The minimum to let is Band E today; the government's long-term MEES target is EPC B for large non-domestic buildings (over 1,000 m²), expected around 2031, so the biggest, lowest-rated roofs have the clearest future-proofing reason to act.

Figures are estimates modelled using standard assumptions, indicative, not quotes.