When someone is selling their home as a short sale, that means they don't have enough money to pay the bank what is owed on the property at closing. Many buyers in this position stop caring about the house and many agents with clients in this position are powerless to do much about it.
Your rights depend on what your contract says, but I suspect it says something like "subject to bank approval" and probably says you're buying "as is". If you had an inspection clause, the electricity should be turned on but the seller will probably not agree to fix anything.
If the seller violated some terms of your contract, check with a real estate attorney but it sounds like you may be out of luck if the seller doesn't want to cooperate with you.