India · Regulatory guide
Top Solar Proposal Software in Bihar | SolvSolar
Rooftop solar in Bihar is distributed by North Bihar Power Distribution Co (NBPDCL), South Bihar Power Distribution Co (SBPDCL), regulated by Bihar Electricity Regulatory Commission (BERC) / BREDA, averages 5.0 kWh/m²/day of usable irradiance, and is eligible for the central PM Surya Ghar Muft Bijli Yojana scheme — SolvSolar applies those defaults automatically to every 45-second proposal.
DISCOMs covered
North Bihar Power Distribution Co (NBPDCL) · South Bihar Power Distribution Co (SBPDCL)
Metering policy
Net metering under BERC regulations, BREDA nodal agency
Avg. irradiance
5.0 kWh/m²/day
Benchmark cost
₹55,000 / kW
What is different about selling solar in Bihar
Bihar's two discoms are divided by the Ganga rather than by administrative zone, so the river effectively decides which company sanctions a job. This is the least saturated major market in the list: installer density is low, so competition is thinner, but so is customer familiarity, and proposals here do more explanatory work than in Gujarat or Maharashtra. Grid outages remain common outside Patna, which makes battery-backed hybrid systems an easier sell than pure on-grid — and moves the conversation from payback to reliability. Lower average sanctioned loads mean 2–3 kW residential systems, where the PM Surya Ghar ₹30,000/kW slab covers a large share of project cost.
Nodal agency
Bihar Renewable Energy Development Agency (BREDA)
Main demand centres
Patna · Gaya · Muzaffarpur · Bhagalpur
Bihar net-metering capacity rule
North Bihar Power Distribution Company covers districts north of the Ganga and South Bihar Power Distribution Company those to the south, both operating net metering under BERC regulations.
Net metering in Bihar
Regulator: Bihar Electricity Regulatory Commission (BERC) / BREDA
Needs verification
Rooftop solar in this state is connected under the state electricity regulatory commission's net-metering regulations: the installer files an application with the local DISCOM, the DISCOM sanctions feasibility against the consumer's sanctioned load, the plant is installed by an empanelled vendor, and a bi-directional meter is installed after inspection before commissioning and credit settlement begin. Exact load caps, capacity ceilings, settlement period and fee schedule must be confirmed against the current DISCOM circular before quoting.
PM Surya Ghar subsidy in Bihar
Needs verification
PM Surya Ghar: Muft Bijli Yojana is a central (all-India) scheme, so residential consumers in this state are eligible on the same national basis, applying through the National Portal and a state-empanelled vendor, with the subsidy released to the consumer's bank account after installation and DISCOM inspection. Current slab amounts, any additional state top-up, and the state nodal-agency workflow must be verified before being shown to a customer.
Applications in Bihar route through Bihar Renewable Energy Development Agency (BREDA). The exact slab maths — ₹30,000/kW for the first 2 kW, ₹18,000/kW for the third, capped at ₹78,000 — is worked through in our PM Surya Ghar subsidy guide.
Related reading for Bihar
Compare Bihar's rules against every other state in the DISCOM-wise net metering guide, size the system against ROI benchmarks by system size, confirm module eligibility in the ALMM compliance guide, and see how the software costs stack up against Arka360 or Aurora Solar. Common questions are answered in the solar encyclopedia.
Start a Bihar proposal
Indicative benchmark pricing at ₹55,000 / kW — your own costing, BOM and PM Surya Ghar Muft Bijli Yojana treatment are applied inside the proposal engine.
3 kW rooftop
₹1,65,000
Est. annual yield 4,106 kWh
5 kW rooftop
₹2,75,000
Est. annual yield 6,844 kWh
10 kW rooftop
₹5,50,000
Est. annual yield 13,688 kWh