NBPDCL Solar Net Metering Tariff & Per Unit Rate Bihar (2026)

⚠️ Disclaimer: Tariff rates and export prices are indicative as of 2026-09-22 and subject to change per SERC/CERC orders. Always verify current rates at nbpdcl.co.in before making financial decisions. Rates change annually.

NBPDCL Electricity Tariff Slabs 2026

The following domestic tariff slabs apply to household consumers under NBPDCL (North Bihar Power Distribution Company Limited). Commercial and industrial tariffs differ — check nbpdcl.co.in for those categories.

Monthly Consumption Slab	Rate per Unit (Indicative)
0–50 units	₹5.25/unit
51–100 units	₹5.85/unit
101–200 units	₹6.50/unit
201–300 units	₹6.95/unit
Above 300 units	₹7.75/unit

NBPDCL Solar Net Metering — Export Rate

Under net metering, NBPDCL consumers with rooftop solar systems can export surplus electricity to the grid and receive credit. NBPDCL's net metering buyback rate is approximately ₹2.45/unit, as per BERC's tariff order — the same rate structure applies to SBPDCL across the rest of Bihar.

Net metering settlement for NBPDCL is as per BERC net metering regulations, as per BERC (Bihar Electricity Regulatory Commission) regulations.

How Solar Saves Money Under NBPDCL Tariffs

For a household consuming 300–400 units per month in the NBPDCL area, a 3 kW solar system can offset 300–360 units per month (25 kWh/day average). At current NBPDCL tariffs, this can save a meaningful portion of the electricity bill each month, depending on which consumption slab your usage falls into and your generation profile.

Use our solar cost calculator and ROI calculator to estimate your exact savings based on your monthly bill.

PM Surya Ghar Subsidy for NBPDCL Consumers

Residential consumers in NBPDCL areas are eligible for PM Surya Ghar Muft Bijli Yojana subsidy: up to ₹78,000 central subsidy for a 3kW system. Check BERC (Bihar Electricity Regulatory Commission)/your state renewable energy agency for any additional state-level incentives on top of the central subsidy. To avail the subsidy:

Apply at pmsuryaghar.gov.in
Select an MNRE-empanelled installer from your DISCOM area
Complete installation; installer files net metering application with NBPDCL
After DISCOM inspection and net meter installation, subsidy is credited to your bank account

Serving customers in Muzaffarpur, Darbhanga, Begusarai, Samastipur and other north Bihar districts.

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Documents for NBPDCL Net Metering Application

Last 3 months electricity bill (showing NBPDCL consumer number)
Load sanction / connection letter
Solar system single-line diagram (SLD) — signed by licensed electrical engineer
Inverter test certificate (IEC 61727 / IS 16221)
Solar panel IEC certificate (IEC 61215, IEC 61730)
MNRE-empanelled installer's electrical contractor licence copy
GST invoice for solar system
Geo-tagged site photographs
ID proof of electricity consumer

See our complete DISCOM net metering documentation guide for the full state-wise checklist.

Frequently Asked Questions

What is the NBPDCL per unit electricity rate in Bihar in 2026?

NBPDCL domestic tariff 2026: 0–50 units at ₹5.25/unit; 51–100 units at ₹5.85/unit; 101–200 units at ₹6.50/unit; 201–300 units at ₹6.95/unit; Above 300 units at ₹7.75/unit. Rates are set by BERC (Bihar Electricity Regulatory Commission). Verify the current tariff order at nbpdcl.co.in.

What is the NBPDCL solar net metering export rate?

NBPDCL's solar net metering export credit is approximately ₹2.45/unit, as per BERC (Bihar Electricity Regulatory Commission) regulations. NBPDCL's net metering buyback rate is approximately ₹2.45/unit, as per BERC's tariff order — the same rate structure applies to SBPDCL across the rest of Bihar.

How to apply for NBPDCL solar rooftop net metering?

Apply at nbpdcl.co.in or via pmsuryaghar.gov.in. Required: your NBPDCL consumer number, last 3 bills, single-line diagram (SLD) by a licensed engineer, inverter test certificate (IS 16221 / IEC 61727), panel test certificate, and an MNRE-empanelled installer's certificate. Your installer typically handles most of this paperwork on your behalf.

Is net metering available for NBPDCL commercial consumers?

Yes, NBPDCL offers net metering for commercial and industrial consumers in addition to residential, under BERC (Bihar Electricity Regulatory Commission) regulations — check nbpdcl.co.in for the specific eligibility and capacity limits that apply to your connection category.