How are solar panels made? How do they work? Can solar panels layed out on a rooftop power a house?

I want to do a little project this year, and that is to make solar panels of my own. I want to see the pros and cons of how effective solar panels are. Also what are good websites where I may obtain more information on blueprints of how they are made.

Can we mix different wattage and types of panels in Solar installation?

Hi, I want to know can we mix for example, solar panels from different companies and different wattage to power a home?

For example, if i mix Kyocera Solar 200w + Sharp 170w +
Aten Solar 60w etc to make up my installation?

What are the pros and cons?

Thanks for your answer. Really appreciated.