I think he was putting it in as a hedge on skyrocketing electric rates. All the calculation done do not take into account ant rate increase forecast.
Not saying this guy is right or wrong but I will say again that it has to be great to not need the electric company. It also has to be great to not have to pay taxes on the electricity from the electric company.
How many of you have “smart” meters. This guy doesn’t need to worry about(at least at the level us who buy electricity from an electric company) the government regulating his electricity use, through the end game of “smart” meters that have the ability to transmit data on your electricity usage, what you use when, when you are home, when you are probably awake or sleeping, etc.
Eventually, “smart” meters will probably be used to cut your power down or off when someone deems it necessary.
This guy probably wont have to worry about those things as much as us.