Bihar bijli bill calculator: NBPDCL and SBPDCL
Work out your NBPDCL, SBPDCL electricity bill from the tariff set by BERC. Enter the units from your meter reading and see the bill built slab by slab. Both discoms use the same BERC tariff. Got a bill already? Use the Bihar bijli bill check to test each line.
- Billed monthly
- Order dated 18 March 2026
- Rates checked 15 October 2026
Enter your units to see the bill.
Domestic rates
What a home on the Domestic - urban (contract demand up to 70 kW) tariff (1.3 DS-II) pays per unit after any subsidy built into the tariff.
| Units per month | Rate you pay |
|---|---|
| All units | ₹7.42 |
Fixed charge: ₹80 per kW (or part) per month
Example bills
| Units per month | Bill | Average per unit |
|---|---|---|
| 50 | ₹0.00 | ₹0.00 |
| 100 | ₹0.00 | ₹0.00 |
| 150 | ₹263.00 | ₹1.75 |
| 200 | ₹469.00 | ₹2.35 |
| 300 | ₹881.00 | ₹2.94 |
| 500 | ₹1,705.00 | ₹3.41 |
Sanctioned load 2 kW, urban, single phase. With Government of Bihar tariff subsidy, Mukhyamantri Vidyut Upbhokta Sahayata Yojana: 125 units free applied (on by default; see Government schemes below). Duty and fuel surcharge excluded.
Where these rates come from
- Regulator
- BERC
- Order
- BERC Tariff Order for NBPDCL & SBPDCL, FY 2026-27 (uniform state-wide tariff)
- Dated
- 18 March 2026
- In force from
- 1 April 2026
- Distributors
- NBPDCL (North Bihar); SBPDCL (South Bihar)
- Billing
- Monthly
- Document
- Open the tariff order (PDF)
Not in this estimate
- BERC tariff before the State subsidy; the subsidy and the 125 free units are shown as their own lines.
- Smart-metered homes are on mandatory ToD: 80% of the rate 09-17 h, 110% 17-23 h. This estimate uses the flat rate.
- Electricity duty and FPPAS not included.
Government schemes in Bihar
Schemes that change what a home pays, read from the government order, the regulator’s order or the discom’s own notice. Checked 15 October 2026.
Government of Bihar tariff subsidy In the calculator, on by default
For FY 2026-27 the State Government pays Rs 4.97 of the Rs 7.42 rate for rural homes (DS-I) and Rs 3.30 for urban homes (DS-II), on every unit. The fixed charge is not subsidised.
- Kutir Jyoti homes get Rs 5.45 off on the first 50 units only, and those units are already inside the free 125. Above 50 units they are billed as rural or urban homes. The optional DS-III group connection is not modelled.
Mukhyamantri Vidyut Upbhokta Sahayata Yojana: 125 units free In the calculator, on by default
From July 2025 consumption, all domestic consumers (tenants too, if the connection is in their own name) get up to 125 units a month free, covering the energy charge, fixed charge and electricity duty. The 125 units scale with the days billed (125 × days ÷ 30). Above 125 units only the extra units are billed, at the subsidised rate, with electricity duty on those units, and the fixed charge for the whole period on the higher of recorded demand or 75% of sanctioned load. Arrears from before July 2025 stay payable.
- We use a 30-day month.
- Electricity duty on the extra units is not part of this estimate.
- From 01-04-2026 smart-meter homes have time-of-day rates, which change the price of units above 125; not modelled.
- No FY 2026-27 order restates the 125 units. The FAQ is still on the NBPDCL home page and BERC’s FY 2026-27 order counts the scheme in its sales forecast.
Source: SBPDCL / NBPDCL FAQ on the 125-unit free electricity scheme (Hindi) BERC Tariff Order FY 2026-27, 18-03-2026 (SBPDCL copy), order p. 348
All LT tariff categories in Bihar
Every low-tension category in the order: homes, shops, industry, agriculture and more. Approved rates, before any government subsidy unless the order says otherwise.
1.1 KJKutir Jyoti / BPL (load up to 250 W, up to 50 units/month)Verified
| Units | Rate |
|---|---|
| All units | ₹7.42 /kWh |
Slabs counted on units per month (all units).
ToD (mandatory with smart meter, or contract demand > 10 kW): 09-17 h
80% of normal energy rate
ToD: 17-23 h (evening peak)
110% of normal energy rate (120% for NDS-I, NDS-II, LTIS-I, LTIS-II)
ToD: 23-09 h
normal energy rate
Fixed charge: ₹20 per connection per month
Units above 50 billed at DS-I / DS-II rates. Fixed charge pro-rated if supply is under 21 h/day.
Source: BERC Tariff Order for NBPDCL & SBPDCL, FY 2026-27 (Case Nos. 50/2025 & 51/2025, common order dt 18-03-2026): approved retail tariff without Govt subsidy (printed p.514-515) and Appendix-1 Tariff Schedule, printed p.514 table; Appendix-1 2.1 p.518. Open the order
1.2 DS-IDomestic - ruralVerified
| Units | Rate |
|---|---|
| All units | ₹7.42 /kWh |
Slabs counted on units per month (all units).
ToD (mandatory with smart meter, or contract demand > 10 kW): 09-17 h
80% of normal energy rate
ToD: 17-23 h (evening peak)
110% of normal energy rate (120% for NDS-I, NDS-II, LTIS-I, LTIS-II)
ToD: 23-09 h
normal energy rate
Fixed charge: ₹40 per kW (or part) per month
Billing demand = recorded MD or 75% of contract demand, whichever is higher; MD above 105% of CD billed at twice the rate (Appendix-1 2.2). Single slab for all units.
Source: BERC Tariff Order for NBPDCL & SBPDCL, FY 2026-27 (Case Nos. 50/2025 & 51/2025, common order dt 18-03-2026): approved retail tariff without Govt subsidy (printed p.514-515) and Appendix-1 Tariff Schedule, printed p.514; Appendix-1 2.2 p.518. Open the order
1.3 DS-IIDomestic - urban (contract demand up to 70 kW)Verified
| Units | Rate |
|---|---|
| All units | ₹7.42 /kWh |
Slabs counted on units per month (all units).
ToD (mandatory with smart meter, or contract demand > 10 kW): 09-17 h
80% of normal energy rate
ToD: 17-23 h (evening peak)
110% of normal energy rate (120% for NDS-I, NDS-II, LTIS-I, LTIS-II)
ToD: 23-09 h
normal energy rate
Fixed charge: ₹80 per kW (or part) per month
Billing demand = recorded MD or 75% of contract demand, whichever is higher; MD above 105% of CD billed at twice the rate (Appendix-1 2.2). FY 2026-27 merged the two slabs (was 7.42 up to 100 units, 8.95 above).
Source: BERC Tariff Order for NBPDCL & SBPDCL, FY 2026-27 (Case Nos. 50/2025 & 51/2025, common order dt 18-03-2026): approved retail tariff without Govt subsidy (printed p.514-515) and Appendix-1 Tariff Schedule, printed p.514; Appendix-1 2.3 p.518. Open the order
1.4 DS-IIIDomestic - group connection at single point (optional, up to 74 kW)Verified
| Units | Rate |
|---|---|
| All units | ₹9.03 /kWh |
Slabs counted on units per month (all units).
ToD (mandatory with smart meter, or contract demand > 10 kW): 09-17 h
80% of normal energy rate
ToD: 17-23 h (evening peak)
110% of normal energy rate (120% for NDS-I, NDS-II, LTIS-I, LTIS-II)
ToD: 23-09 h
normal energy rate
Fixed charge: ₹80 per kW (or part) per month
Source: BERC Tariff Order for NBPDCL & SBPDCL, FY 2026-27 (Case Nos. 50/2025 & 51/2025, common order dt 18-03-2026): approved retail tariff without Govt subsidy (printed p.514-515) and Appendix-1 Tariff Schedule, printed p.514. Open the order
2.1 NDS-INon-domestic - ruralVerified
| Units | Rate |
|---|---|
| All units | ₹7.79 /kVAh |
Slabs counted on units per month (all units).
ToD (mandatory with smart meter, or contract demand > 10 kW): 09-17 h
80% of normal energy rate
ToD: 17-23 h (evening peak)
110% of normal energy rate (120% for NDS-I, NDS-II, LTIS-I, LTIS-II)
ToD: 23-09 h
normal energy rate
Fixed charge: ₹60 per kVA (or part) per month
Slabs merged in FY 2026-27 (was 8.21 above 100).
Source: BERC Tariff Order for NBPDCL & SBPDCL, FY 2026-27 (Case Nos. 50/2025 & 51/2025, common order dt 18-03-2026): approved retail tariff without Govt subsidy (printed p.514-515) and Appendix-1 Tariff Schedule, printed p.514. Open the order
2.2.1 NDS-IINon-domestic - contract load up to 0.5 kWVerified
| Units | Rate |
|---|---|
| All units | ₹7.73 /kWh |
Slabs counted on units per month (all units).
ToD (mandatory with smart meter, or contract demand > 10 kW): 09-17 h
80% of normal energy rate
ToD: 17-23 h (evening peak)
110% of normal energy rate (120% for NDS-I, NDS-II, LTIS-I, LTIS-II)
ToD: 23-09 h
normal energy rate
Fixed charge: ₹150 per connection per month
Fixed charge cut from Rs 200.
Source: BERC Tariff Order for NBPDCL & SBPDCL, FY 2026-27 (Case Nos. 50/2025 & 51/2025, common order dt 18-03-2026): approved retail tariff without Govt subsidy (printed p.514-515) and Appendix-1 Tariff Schedule, printed p.514. Open the order
2.2.2 NDS-IINon-domestic - contract demand above 0.5 kW up to 70 kWVerified
| Units | Rate |
|---|---|
| All units | ₹7.73 /kVAh |
Slabs counted on units per month (all units).
ToD (mandatory with smart meter, or contract demand > 10 kW): 09-17 h
80% of normal energy rate
ToD: 17-23 h (evening peak)
110% of normal energy rate (120% for NDS-I, NDS-II, LTIS-I, LTIS-II)
ToD: 23-09 h
normal energy rate
Fixed charge: ₹300 per kVA (or part) per month
Slabs merged in FY 2026-27 (was 8.93 above 100).
Source: BERC Tariff Order for NBPDCL & SBPDCL, FY 2026-27 (Case Nos. 50/2025 & 51/2025, common order dt 18-03-2026): approved retail tariff without Govt subsidy (printed p.514-515) and Appendix-1 Tariff Schedule, printed p.514. Open the order
3.1 IAS-IIrrigation & agriculture - unmeteredVerified
Fixed charge: ₹1350 per HP (or part) per month
Now includes mushroom farming (excluding processing).
Source: BERC Tariff Order for NBPDCL & SBPDCL, FY 2026-27 (Case Nos. 50/2025 & 51/2025, common order dt 18-03-2026): approved retail tariff without Govt subsidy (printed p.514-515) and Appendix-1 Tariff Schedule, printed p.514. Open the order
3.2 IAS-IIrrigation & agriculture - meteredVerified
| Units | Rate |
|---|---|
| All units | ₹6.74 /kWh |
Slabs counted on units per month (all units).
Fixed charge: ₹100 per HP (or part) per month
Source: BERC Tariff Order for NBPDCL & SBPDCL, FY 2026-27 (Case Nos. 50/2025 & 51/2025, common order dt 18-03-2026): approved retail tariff without Govt subsidy (printed p.514-515) and Appendix-1 Tariff Schedule, printed p.514. Open the order
3.3 IAS-IIIrrigation & agriculture - metered, demand basedVerified
| Units | Rate |
|---|---|
| All units | ₹7.17 /kVAh |
Slabs counted on units per month (all units).
Fixed charge: ₹500 per kVA (or part) per month
Source: BERC Tariff Order for NBPDCL & SBPDCL, FY 2026-27 (Case Nos. 50/2025 & 51/2025, common order dt 18-03-2026): approved retail tariff without Govt subsidy (printed p.514-515) and Appendix-1 Tariff Schedule, printed p.514. Open the order
4.1 LTIS-ILT industrial (0-19 kW)Verified
| Units | Rate |
|---|---|
| All units | ₹7.79 /kVAh |
Slabs counted on units per month (all units).
ToD (mandatory with smart meter, or contract demand > 10 kW): 09-17 h
80% of normal energy rate
ToD: 17-23 h (evening peak)
110% of normal energy rate (120% for NDS-I, NDS-II, LTIS-I, LTIS-II)
ToD: 23-09 h
normal energy rate
Fixed charge: ₹278 per kVA (or part) per month
Fixed charge cut from Rs 288.
Source: BERC Tariff Order for NBPDCL & SBPDCL, FY 2026-27 (Case Nos. 50/2025 & 51/2025, common order dt 18-03-2026): approved retail tariff without Govt subsidy (printed p.514-515) and Appendix-1 Tariff Schedule, printed p.514. Open the order
4.2 LTIS-IILT industrial (above 19 kW up to 74 kW)Verified
| Units | Rate |
|---|---|
| All units | ₹7.79 /kVAh |
Slabs counted on units per month (all units).
ToD (mandatory with smart meter, or contract demand > 10 kW): 09-17 h
80% of normal energy rate
ToD: 17-23 h (evening peak)
110% of normal energy rate (120% for NDS-I, NDS-II, LTIS-I, LTIS-II)
ToD: 23-09 h
normal energy rate
Fixed charge: ₹350 per kVA (or part) per month
Fixed charge cut from Rs 360.
Source: BERC Tariff Order for NBPDCL & SBPDCL, FY 2026-27 (Case Nos. 50/2025 & 51/2025, common order dt 18-03-2026): approved retail tariff without Govt subsidy (printed p.514-515) and Appendix-1 Tariff Schedule, printed p.514. Open the order
5.1 PWWPublic water works (demand based)Verified
| Units | Rate |
|---|---|
| All units | ₹9.72 /kVAh |
Slabs counted on units per month (all units).
ToD (mandatory with smart meter, or contract demand > 10 kW): 09-17 h
80% of normal energy rate
ToD: 17-23 h (evening peak)
110% of normal energy rate (120% for NDS-I, NDS-II, LTIS-I, LTIS-II)
ToD: 23-09 h
normal energy rate
Fixed charge: ₹630 per kVA (or part) per month
Source: BERC Tariff Order for NBPDCL & SBPDCL, FY 2026-27 (Case Nos. 50/2025 & 51/2025, common order dt 18-03-2026): approved retail tariff without Govt subsidy (printed p.514-515) and Appendix-1 Tariff Schedule, printed p.514. Open the order
5.2 HGNHar Ghar Nal (connected load based)Verified
| Units | Rate |
|---|---|
| All units | ₹8.16 /kWh |
Slabs counted on units per month (all units).
ToD (mandatory with smart meter, or contract demand > 10 kW): 09-17 h
80% of normal energy rate
ToD: 17-23 h (evening peak)
110% of normal energy rate (120% for NDS-I, NDS-II, LTIS-I, LTIS-II)
ToD: 23-09 h
normal energy rate
Fixed charge: ₹100 per HP (or part) per month
Source: BERC Tariff Order for NBPDCL & SBPDCL, FY 2026-27 (Case Nos. 50/2025 & 51/2025, common order dt 18-03-2026): approved retail tariff without Govt subsidy (printed p.514-515) and Appendix-1 Tariff Schedule, printed p.514. Open the order
6.1 SSStreet lights - meteredVerified
| Units | Rate |
|---|---|
| All units | ₹9.03 /kWh |
Slabs counted on units per month (all units).
ToD (mandatory with smart meter, or contract demand > 10 kW): 09-17 h
80% of normal energy rate
ToD: 17-23 h (evening peak)
110% of normal energy rate (120% for NDS-I, NDS-II, LTIS-I, LTIS-II)
ToD: 23-09 h
normal energy rate
Fixed charge: ₹100 per kW (or part) per month
Source: BERC Tariff Order for NBPDCL & SBPDCL, FY 2026-27 (Case Nos. 50/2025 & 51/2025, common order dt 18-03-2026): approved retail tariff without Govt subsidy (printed p.514-515) and Appendix-1 Tariff Schedule, printed p.514. Open the order
6.2 SSStreet lights - unmeteredVerified
Fixed charge: ₹4250 per kW (or part) per month
Source: BERC Tariff Order for NBPDCL & SBPDCL, FY 2026-27 (Case Nos. 50/2025 & 51/2025, common order dt 18-03-2026): approved retail tariff without Govt subsidy (printed p.514-515) and Appendix-1 Tariff Schedule, printed p.514. Open the order
7 EVCSLT EV charging stationsVerified
| Units | Rate |
|---|---|
| All units | ₹8.72 /kWh |
Slabs counted on units per month (all units).
ToD (mandatory with smart meter, or contract demand > 10 kW): 09-17 h
80% of normal energy rate
ToD: 17-23 h (evening peak)
110% of normal energy rate (120% for NDS-I, NDS-II, LTIS-I, LTIS-II)
ToD: 23-09 h
normal energy rate
Fixed charge: None
Source: BERC Tariff Order for NBPDCL & SBPDCL, FY 2026-27 (Case Nos. 50/2025 & 51/2025, common order dt 18-03-2026): approved retail tariff without Govt subsidy (printed p.514-515) and Appendix-1 Tariff Schedule, printed p.514. Open the order
Bihar bill questions
How much is the electricity bill for 100 units in Bihar?
About ₹0.00 for 100 units in a month, using the current BERC tariff. Sanctioned load 2 kW, urban, single phase. With Government of Bihar tariff subsidy, Mukhyamantri Vidyut Upbhokta Sahayata Yojana: 125 units free applied (on by default; see Government schemes below). Electricity duty and the monthly fuel surcharge are not included.
What will 200 or 300 units cost in Bihar?
Roughly ₹469.00 for 200 units, and ₹881.00 for 300 units. Use the calculator above for your exact units and load.
Are Bihar domestic slabs telescopic?
There is a single rate for all units, so there are no slabs to cross.
How often are Bihar electricity bills issued?
Homes are billed monthly. Enter the units for one billing period.
Which tariff order are these Bihar rates from?
BERC Tariff Order for NBPDCL & SBPDCL, FY 2026-27 (uniform state-wide tariff), dated 18 March 2026, in force from 1 April 2026. A link to the PDF is in the sources box on this page.
What does this estimate leave out?
BERC tariff before the State subsidy; the subsidy and the 125 free units are shown as their own lines. Smart-metered homes are on mandatory ToD: 80% of the rate 09-17 h, 110% 17-23 h. This estimate uses the flat rate. Electricity duty and FPPAS not included.
Where is the consumer number on my Bihar electricity bill?
The name differs by discom. NBPDCL: CA No (9 digits); SBPDCL: CA No (9 digits). The table on this page shows where each discom prints it, when its official pages say so.
Where to find your consumer number
Your bill shows a number that identifies your connection. In Bihar the discoms call it:
| Discom | Name on the bill | Digits | Where to find it | Source |
|---|---|---|---|---|
| NBPDCL | CA No | 9 | In the Connection Details box, on the first line. The old account number is below it. | NBPDCL quick bill payment page: 'What is CANumber?' sample b |
| SBPDCL | CA No | 9 | In the Connection Details box, on the first line. The old account number is below it. | SBPDCL quick bill payment page: 'What is CANumber?' sample b |
From the discoms’ own websites, bill guides and sample bills, read on 17 October 2026. Where the source is a sample bill, we read only its layout: the label, the place and the number of digits. A dash means the official page we read does not say. Never share your consumer number with an unknown caller or app.