how many solar panels would I need to power a 1440 sq. ft. apartment w/ four bedrooms and how big should it be

I’m a college student and I’m moving into my first apartment with some friends of mine. WIth the way natural gas prices are going, being energy efficent at home is of the utmost importance. I’ve been researching information on the subject but I haven’t been able to find any general information telling me how many [...]