If you're looking to figure out the best way to produce electricity at home, then the answer would be solar energy. It's a great alternative to regular electricity, and after the initial payment of equipment purchase and installation, you're barely going to be spending anything on electricity. As a matter of fact, you could even earn some money for the surplus electricity your solar panels produce. If your house is hooked up to the grid, your panels will redirect excess electricity back to government power grids, which the government will return in the form of a tax credit amount.
Hydropower is one of the most environmentally friendly ways to produce electricity. It depends on the flow of electricity from large bodies of water like lakes and oceans. The best part is that hydropower does not consume the fuel required, i.e., water. That is why it's a form of renewable energy that the world is extremely dependent on.