Snug and smug with solar power: keeping on the sunny side of the storms

Producing your own power is true independence, but all power has its limits. The limit of solar power lies in batteries, which are still expensive, large, and heavy. Designing a solar system to sustain your household when the grid goes down is a lesson in needs versus wants. These become clarified when, for example, you’re thirsty in a flood, or hungry with a refrigerator full of decaying food.