Start with the electricity bill
The bill is the prize solar offsets. A building's electricity intensity multiplied by floor area estimates annual electricity spend. Bigger bills mean bigger, faster-payback projects.
Then roof size and load profile
Large, low-rise, unshaded roofs host the most kWp. Buildings with daytime electrical load, refrigeration, manufacturing, logistics, self-consume more generation, improving returns.
Layer in MEES pressure and grid headroom
Buildings at energy-rating Band D–G face MEES pressure, giving owners a reason to act now. Local grid headroom determines how easily a system connects. Together these turn a long list into a ranked shortlist.
Do it at scale with Sunseam
Sunseam ranks every suitable commercial roof in a region by these factors, with the per-site prize for every building, so installers start at the top of the list instead of cold-canvassing.