SolarCalcLab

Solar guides

Plain-English explainers on solar sizing, costs, batteries and wiring, each linked to a calculator so you can check the numbers.

Diagram of rooftop solar panels on a home feeding a two-way meter, with arrows showing solar exports to the grid and electricity imports back to the house

Savings, 10 min read

What Is Net Metering and How Does It Work for Solar?

Net metering credits solar owners for power sent to the grid. Learn how credits, true-ups and net billing work, and what NEM 3.0 changed.