I installed solar in 2002 and bought my first electric car the same year. The money I saved by not buying gasoline and electricity paid for the solar in 2010. Since then, and for the rest of my life, I power my home, cars, and motorcycles on clean renewable energy - for free.

When I did it, solar was expensive and EVs were rare and costly. Today, solar is cheaper than grid power, and EVs are plentiful and on par with the cost of gas cars.

Going forward, our job is to never buy another gas car, and to the extent you have influence, don't let your friends, family, co-workers, or neighbors buy one either.