a company

in 2022 and beyond, a great idea is a Solar Battery Charging Service...

you need a block of land to put solar panels on, and regular clients, you'd need a work vehicle to deliver full batteries to homes and businesses. if the clients have grid tie inverters, and solar charge controllers with a bit of wiring, the business could operate without difficult, after giving a bit of education to each client. this is recommended for high density areas where the client is unable to install solar panels.