Why not ?
I do .
Tescos ( other supermarkets do exist ) roof area and a large car park all ripe for PV . Churches , universities, large gyms ( e.g David Lloyd ) , stadiums , schools - the list is endless .
All that roof area and land area - yet almost most no PV panels and no battery storage.
Why do I and a few others feel the need but large corporate bodies don’t .
Cost ? . They’d save in the long term and good PR .
So what’s the issue ?