The middle path: grid-tied like on-grid, but with a small battery to keep essentials running during outages. You get export income and subsidy, plus lights and a fridge when the power cuts.
A hybrid system is grid-tied with a battery. It exports surplus to the grid like an on-grid system, but keeps a small battery — usually 2–5 kWh — to run essential loads during outages: lights, fans, fridge, Wi-Fi router.
The battery is deliberately undersized. You're not trying to run the air conditioner through a six-hour cut; you're keeping the fridge cold and the lights on. That keeps the cost far below a true off-grid system while still solving the on-grid blackout problem.
A hybrid system typically costs 1.5–1.7× an equivalent on-grid system, with the premium going entirely to the battery and a hybrid-capable inverter. It sits between on-grid (₹55–70k/kWp) and off-grid (₹95–140k/kWp).
This is the nuance worth knowing: several DISCOMs allow the solar portion of a hybrid system to claim the PM Surya Ghar subsidy, as long as the grid-export capability and a net meter are installed. The battery portion is never subsidised. Rules vary by state and DISCOM — confirm with yours before assuming you'll get it.
| On-Grid | Hybrid | Off-Grid | |
|---|---|---|---|
| Battery | None | Small (essentials) | Full load |
| Cost per kWp | ₹55–70k | ~₹85–110k | ₹95–140k |
| Backup in outage | ✗ None | ✓ Essentials | ✓ Everything |
| Subsidy | ✓ Full | Solar portion (varies) | ✗ None |
| Export income | ✓ | ✓ | ✗ |
Choose On-Grid in the calculator and switch on "Add battery backup" to see hybrid costs and savings.
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