Splitting utilities when you don't have a separate meter

[Nelson Del Castillo]

I have a 2 family house, the first floor unit along with the garage and basement lights, are all on one meter. Previously the first floor apartment was rented to college students so I would pay for all utilities... We are now renting the full apartment to one person.. How do you legally split the utility bills, which would be electric?  Are there any laws regarding this in Connecticut? My thought was that I would pay for 50% of the electricity and that the tenant would pay for 50 % of the electricity.. In the future, I suppose I can add another meter for the general house.