Solar Energy in Bihar: Complete 2026 State Guide
Bihar has chronic grid unreliability — solar + battery storage is particularly valuable here. SBPDCL's 'Solar Apna Ghar' scheme targets 1 lakh installations by 2027.
Solar Potential in Bihar
Bihar receives approximately 4.8 peak sun hours per day on average. A 3 kW rooftop solar system in Bihar generates approximately 4,468 units per year and can save ₹2,497/month on your electricity bill at the current NBPDCL tariff of ₹6.80/unit.
Estimated payback period: ~3.4 years after PM Surya Ghar subsidy. After payback, you get 20+ years of virtually free electricity.
PM Surya Ghar Subsidy in Bihar (2026)
Residents of Bihar are fully eligible for the central PM Surya Ghar Muft Bijli Yojana:
- Up to 2 kW: ₹30,000/kW (total ₹60,000)
- 2–3 kW: ₹18,000/kW for the extra capacity (total ₹78,000 for 3 kW)
- Above 3 kW: No additional central subsidy, but net metering still applies
State subsidy: No state top-up. Central PM Surya Ghar applies. SBPDCL and NBPDCL launched online net metering portals in 2025.
Your DISCOM & Net Metering in Bihar
Electricity distribution and solar net metering in Bihar is handled by NBPDCL (North Bihar) and SBPDCL (South Bihar).
- Net metering limit: 500 kW
- Application portal: sbpdcl.co.in / nbpdcl.co.in
- Solar target for Bihar: 2 GW solar capacity target by 2027 under BREDA scheme
How to Apply for Solar in Bihar
- Register at pmsuryaghar.gov.in with your Aadhaar and consumer number
- Select your DISCOM (NBPDCL) in the portal
- Choose an MNRE-empanelled installer from the portal's vendor list
- Get the system installed (typically 2–4 days for 1–5 kW)
- Submit commissioning certificate to NBPDCL for net meter installation
- Subsidy credited to your bank account within 30 days of net meter commissioning
Why Go Solar in Bihar in 2026?
- 💰 Save ₹2,497/month on your electricity bill
- 🏛️ PM Surya Ghar subsidy up to ₹78,000 — no repayment needed
- ⚡ Net metering — export surplus solar to grid for credits
- 📈 Property value increases 3–5% with solar installation
- 🌿 Reduce CO₂ by ~1.5 tonnes/year per kW installed
- 🔧 25-year warranty on quality solar panels (Waaree, Adani, Tata, Vikram)
See city-specific guides for Bihar: Patna
Use our Solar Cost Calculator and ROI Calculator to get personalised estimates for your home in Bihar.