Up for grabs right now. Different from Rise of the Kryptonian, because that actually turns you into a kryptonian, instead of using Superman's powers or derive them from a spell. And that one is only applicable on yoursefl, while this power can also give others the suerpman powers.
Assuming you cast the spell on your self, you'd need to "make" an inanimate object your power source where you draw your power from (like Superman gets his power from the sun). How would that work (for example with the power plant) if you're somewhere else (let's say New York)? And what is your weakness? You didn't mention any, and if it's kryptonite, will that be scarcely available in the area you live in?