Renting an apartment: Extra costs for utilities
Utility cost are for water, sewer, electricity, cable TV, trash, gas.
Some leases include these costs, others not. You have to ask if and what utilities are included or not.
This has to be part of your lease, too. Remember always: what you don't see in your lease does not exist!
A lease is a legal binding document and a paragraph is only invalid if it is against any law, e.g. city, state or federal law.
If some utilities are not included then ask how much the estimated costs are. Every landlord must know that.
It's a risk when you don't know these costs and sign the lease anyway. Summer months can rise your electricity bills for the needed air condition and winter months can drive up your costs for heating. Some states are pretty cheap, other rather expensive in regards to this costs.