>It seems inefficient to put solar panels over parking areas as it requires significant amount of structure which costs a lot more than shade it creates is worth

If you're putting up structures to shade cars from bright sun anyway then it doesn't take a lot of legislative pressure to enforce "the thing you put up has to be solar panels".

Not familiar with SK, but in principle this parking shade had better be panels works. This is doable within both governmental, social and financial frameworks in countries that get decent sun. Whether SK qualifies as "decent sun"...idk...seems borderline to my unqualified eye