Solar panels for your home: how to size a system
Size rooftop solar from your monthly units, not your roof. A simple method, the usual kW ranges by consumption, and what to ask installers.
Desk
Energy
Solar, wind, batteries, grids, nuclear and what they really cost.
How does a solar panel system pay for itself?
Solar payback is the system cost minus subsidies, divided by yearly bill savings. See how it works, what the data says, and the India subsidy rules.