"On sunny days, solar panels on the roof of Strizki's detached garage generate more than enough electricity to power his home. The excess electricity powers a device inside the garage called an electrolyzer, which transforms a tank of water into its base elements – oxygen and hydrogen.
"The oxygen is released into the atmosphere, while the hydrogen is stored in 10 1,000-gallon propane tanks on Strizki's property. In the winter, when the solar panels collect less energy than the home needs, that hydrogen is piped to an air-conditioner-size fuel cell, located just outside the garage, which generates electricity."
That's zero emissions, and as much power as you want. Better, he also has a hydrogen fuel cell powered car that he fills with hydrogen from his own electrolyzer. Yep, total power and transportation from sunlight and water.
The downside? He spent $500K, but got $250K back from the state. The hydrogen generator system is hardly efficient (he loses 50% in evaporation). But, his quote is the most telling:
"Nothing is as wildly expensive as destroying the whole planet."