Solar PPA for hospitals & nhs in Cardiff

Cardiff healthcare sites and the 24-hour demand curve

Hospitals are unusual tenants for a solar system in the best way: their consumption barely falls between day and night. In Cardiff, the ventilation, imaging, laundry and ward-heating loads keep running continuously, so a rooftop array's generation is absorbed on site rather than sold back at a low rate. That is the demand profile a power purchase agreement is designed to capture, and with local commercial bills averaging around £45,000 a year, the offset is substantial.

What a PPA actually commits you to

The array is funded, owned and maintained by a developer; the hospital simply purchases the solar electricity at a fixed price, generally 11 to 15 p/kWh. Cardiff's larger healthcare sites can carry arrays in the 250kWp to 2MWp range, with National Grid Electricity Distribution operating the Welsh network your installer will design to. No capital leaves the organisation, so the decision rests with estates and finance rather than a competitive funding round.

Welsh funding routes and council ambition

Cardiff Council targets net zero by 2030 under One Planet Cardiff, and the Welsh Government Energy Service, together with Business Wales loans via the Development Bank of Wales, gives healthcare providers and their suppliers established support routes — useful context even where a PPA carries no upfront cost.

Where the demand clusters, and next reading

Medical-supply and healthcare-adjacent occupiers sit around Cardiff Bay, Wentloog Industrial Park, Cardiff Industrial Park and Atlantic Wharf, serving hospitals out to Penarth, Barry, Caerphilly, Newport and Pontypridd. For systems of this scale, annual savings commonly reach £40k–£320k. See how the unit rate is fixed in our PPA pricing guide, read the detail on solar for hospitals, and place it within the Cardiff commercial solar market.