Bihar Electricity Bill Calculator
Slab-wise calculations for NBPDCL, SBPDCL. Enter units, get a DISCOM-accurate bill in seconds.
Calculate Your Electricity Bill
Pick your state, DISCOM and enter units — we do the math exactly the way your DISCOM does.
Tip: Your bill shows this as "units consumed" or "kWh".
Usually 1–5 kW for homes, 5–20 kW for shops.
- BERC issues a common tariff for NBPDCL & SBPDCL.
- Large Bihar Govt subsidy; most domestic consumers pay significantly less than listed slab rates after state subsidy.
DISCOMs in Bihar
Pick your distribution company for its exact slab rates.
NBPDCL Domestic Tariff 2025–26
Effective 2025-04-01. Source: official SERC order.
| Slab (units / month) | Energy rate (₹/unit) |
|---|---|
| 1 – 100 | ₹6.10 |
| 101 – 200 | ₹6.95 |
| Above 200 | ₹8.05 |
- Fixed charges
- ₹100/kW/mo
- FAC / FPPCA
- ₹0.35/unit
- Electricity duty
- 6%
- Telescopic
- Yes
About electricity billing in Bihar
Headquartered at Patna, Bihar electricity tariffs are set by the State Electricity Regulatory Commission through annual tariff orders that specify slab rates, fixed charges, and cost-pass-through mechanisms. Domestic consumers are generally billed on a telescopic basis: only the units within each slab are charged at that slab's rate, so climbing a slab doesn't push your cheaper units to a higher rate.
Apart from energy charges, your monthly bill includes a fixed charge based on sanctioned load (kW), a Fuel & Power Purchase Cost Adjustment (FAC / FPPCA), electricity duty (a percentage-based state levy), meter rent, and any applicable subsidy. Our calculator models each of these components exactly the way your DISCOM does — so the estimate you see here should closely match the figure on your bill.
For the latest tariff orders and notifications, visit your DISCOM's website or the SERC portal. We verify tariff data every quarter against official orders.
Bihar Electricity Bill — FAQs
Answers to the most common electricity bill questions in India.