Off-Grid Solar Systems in India — Complete Guide
Off-grid solar is ideal for rural India, remote locations, or areas with unreliable grid supply. Unlike grid-tied systems, off-grid systems store all energy in batteries and work independently of the electricity grid.
Off-Grid vs Grid-Tied vs Hybrid
| Type | Works Without Grid | Battery Needed | Net Metering | Best For |
|---|---|---|---|---|
| Off-Grid | Yes | Yes (large) | No | Remote/rural areas |
| Grid-Tied | No | No | Yes | Urban areas, stable grid |
| Hybrid | Yes | Yes (smaller) | Yes | Urban with power cuts |
Off-Grid System Cost in India
| System Size | Battery Storage | Total Cost | Best For |
|---|---|---|---|
| 500W | 100Ah (1.2 kWh) | ₹35,000–₹55,000 | Basic lighting + fans |
| 1 kW | 150Ah (1.8 kWh) | ₹60,000–₹90,000 | Small rural home |
| 2 kW | 200Ah (2.4 kWh) | ₹1,10,000–₹1,60,000 | Medium home |
| 3 kW | 400Ah (4.8 kWh) | ₹1,80,000–₹2,60,000 | Large home with AC |
Sizing Your Off-Grid System
- Calculate daily load: List all appliances × hours used
- Add 20% buffer for losses and cloudy days
- Battery sizing: Store at least 2 days of consumption
- Panel sizing: Must charge batteries + meet daytime load
Government Support for Off-Grid Solar
- MNRE off-grid program: 30–90% subsidy for BPL households
- PM-KUSUM for farmers: Solar pumps with 60–70% subsidy
- State-specific schemes for rural electrification
Best Off-Grid Solar Brands in India
- Luminous: Most popular for rural India — excellent dealer network
- Su-Kam: Pioneer in off-grid, strong presence in North India
- UTL Solar: Good budget option, pan-India presence
- Microtek: Affordable with good inverter range