Hi, electricity cost just in general is a very important to consider while mining. First cost would be the initial investment, but then there are are the running cost. Which in this case will be your electrictiy.

The pools normally ask a minimal fee that you are allowed to mine in their pool. This is not something you need to pay upfront, they just keep their portian when you mine.

A nice site to use to check profitabilty is www.whattomine.com.

I will surely make a video on the same in the future.

Thank you ;)