Property with solar power service

[Cindy Lamug]

Hello everybody,

We have a property that has solar panels and we'd like to create a lease agreement which states they will pay us a certain amount for the fee to use the solar panels, this will provide them a certain amount of electricity every month, then any more electricity they will need exceeding that amount will need to be purchased from the local electricity provider. How do we go about including this in the lease agreement? 

In addition, I am having trouble with including the language for water sub metering for another property. We will be getting the water bill, checking the sub meter every month and sending them the bill for what they owe.

For both bills, any balance unpaid will be deducted from their next rent payment.

We are trying to do this without getting the help of a property management company. We appreciate any help or advice. Thank you!