Ofcourse you cannot park at someone elses parking.Thats encroaching and breaking law.you cannot park your car in someone else's parking in a society. you cannot install your own generator. in some societies you cannot get any construction work done during 2-4pm because of disturbance to your neighbors and so on. you lose a lot of rights when you move to a society. though i guess, this kind of deal can probably be challenged in courts and possibly overridden.
Use of personal generator and construction may disturb someone as noise is produced.
But what connection i use is my problem.It cannot be dictated by anyone.Also the laws are different for cooperative socities who have more protection for their bye laws and socities formed by residents in builder built complex.