[fourjawchuck]

Others have mentioned solar and getting your own home running on that which I think is a good first step.

Then understanding battery storage for the solar and integrating this.

You should become licensed to do all of this or be prepared to build a business that employs people to do so.

Next would be to build a solar grid in your yard or buy some land to build on. Then offer to sell it at below market rates to neighbors and integrate your solar grid into their homes.

The end goal being something analogous to a WISP which you could continue to add on to as capital and experience permits.

https://www.wispa.org/what_is_a_wisp.php