Solar

Full off-grid power for an average US home costs $50,000–$120,000. Here's the realistic math, who it makes financial sense for, and why grid-tied with battery.

How to size a home battery: walk through the essential load math, solar surplus calculation, and TOU arbitrage sizing for backup, solar storage, and rate.

What is a microgrid? Learn how islanding works, why Kauai Hawaii runs on 70% renewables, military base energy resilience, and what home microgrids actually.