How to charge utility

[Celia-And-KJ0]

I have a group interested in coming who wants to add a camper in my property, run an electrical cord and power the camper for a week to house an additional 4 people. I feel this may significantly increase my power usage/ utility bill. How do I reflect that in the pricing? 

[Jeff158]

@Celia-And-KJ0  Why would you do this, you have a nice holiday home don't let people wreck it, and the neighbors are going to love you. PARTY TIME

[Celia-And-KJ0]

The reason why I am considering it is because it is a museum group with thier students