Complete Rooftop Solar Guide — India

Everything you need to decide on rooftop solar — system types, sizing, subsidy, net-metering and maintenance.

How rooftop solar works

Solar panels convert sunlight to DC power; inverter converts DC to AC for home use. On-grid systems export surplus to grid via net-metering.

System sizing

Estimate daily consumption, consider roof area, and choose a system that meets daytime usage. Use the calculator to get recommended kW.

Subsidy & Net-metering

Central MNRE schemes and some state incentives exist. Net-metering rules vary by DISCOM.

Maintenance

Panels require minimal maintenance: cleaning, inverter health checks, and periodic performance monitoring.

FAQ

How much area for 1 kW?

~100 sq.ft depending on panel wattage.

Is battery necessary?

Only if you need backup during outages — adds significant cost.