Complete Guide to Rooftop Solar Installation in Bihar

## Why Rooftop Solar is Growing in Bihar

Bihar receives an average of 5.5 peak sun hours daily, making it an excellent region for solar energy generation. With rising electricity costs and increasing government support through PM Surya Ghar and state-level incentive programs, rooftop solar has become one of the most practical investments for homeowners and businesses across the state.

Understanding Rooftop Solar Costs in Bihar

The cost of a rooftop solar system in Bihar depends on several factors including system capacity, panel quality, inverter type, and mounting structure. For a typical residential installation:

• **1 kW System**: Suitable for small households with basic electricity needs
• **3 kW System**: Covers most residential requirements including fans, lights, refrigerator, and television
• **5 kW System**: Ideal for larger homes with air conditioning and higher consumption
• **10 kW System**: Suited for commercial establishments and large residences

Government subsidies under the PM Surya Ghar Yojana can significantly reduce the upfront investment, making solar accessible to a wider audience.

Choosing the Right Solar EPC Company

An EPC (Engineering, Procurement, and Construction) company handles every aspect of your solar installation. When selecting a solar EPC company in Bihar, consider:

1. **Experience and Track Record**: Look for companies with verified installations in your area 2. **Panel and Inverter Quality**: Ensure they use BIS-certified panels and reliable inverters 3. **Warranty Coverage**: A quality installation should come with comprehensive warranties — typically 25 years on panels and 5-10 years on inverters 4. **After-Sales Support**: Solar systems require periodic maintenance for optimal performance 5. **Net Metering Assistance**: Your EPC partner should handle the net metering application process with BSPHCL

Net Metering in Bihar

Net metering allows you to export excess solar energy to the grid and receive credits on your electricity bill. Bihar State Power Holding Company Limited (BSPHCL) administers the net metering program. Key points:

• Systems up to the sanctioned load can be installed
• Exported units are adjusted against consumed units
• The process requires technical feasibility approval from the local DISCOM

Solar Panel Maintenance

Regular maintenance ensures your solar system operates at peak efficiency:

• **Monthly**: Visual inspection and basic cleaning
• **Quarterly**: Performance monitoring and output verification
• **Annually**: Professional inspection of wiring, mounting, and inverter health

Making the Decision

Rooftop solar is a long-term investment that typically pays for itself within 4-6 years. With a system lifespan of 25+ years, the remaining years represent pure savings on electricity costs.

For residents and businesses in Hajipur, Patna, and across Bihar, investing in solar energy is not just financially sound — it contributes to a cleaner, more sustainable energy future.