Estimate your South Bihar Power Distribution Company Ltd. bill in seconds and browse the full 2026-27 tariff schedule — energy slabs, fixed/demand charges, fuel surcharge (FPPA) and electricity duty for Patna, Gaya, Nalanda and the rest of South Bihar.
South Bihar Power Distribution Company Ltd.
Service area: South Bihar (Patna, Gaya, Nalanda, Aurangabad, Rohtas, etc.)
SBPDCL (South Bihar Power Distribution Company Ltd.) distributes electricity across South Bihar, serving 6 key districts and towns including Patna, Gaya, Nalanda, Aurangabad and more.
PatnaGayaNalandaAurangabadRohtasetc.
SBPDCL at a glance
Distribution company
South Bihar Power Distribution Company Ltd.
Short name
SBPDCL
State / UT
Bihar
Districts / cities served
6+ — Patna, Gaya, Nalanda, Aurangabad, Rohtas, etc.
Rates status
Based on the 2026-27 tariff order (latest published data we have)
SBPDCL scored 67.37 and ranks 20 of 54 state and private distribution utilities — up a grade from the 13th report.
The rating scores the utility’s financial and operational performance — AT&C losses, billing and collection efficiency, the gap between what supply costs and what it earns, and the regulatory support the utility gets. It is not a measure of supply reliability or customer service, and it does not affect your tariff.
SBPDCL applies the same state-wide 2026-27 tariff schedule as the other Bihar DISCOMs (set by the state regulator). What differs by company is the service area, billing portal and contact details below.
LT Domestic (DS)
Supply type
Energy charge
Fixed charge
Duty & other
Kutir Jyoti (BPL)
Above 0units₹7.42/unit
₹20/mo
Electricity Duty6%
DS-I (Rural)
Above 0units₹7.42/unit
₹40/kW/mo
Electricity Duty6%
DS-II (Urban / demand based)
Above 0units₹7.42/unit
₹80/kW/mo
Electricity Duty6%
Who each rate applies to
Kutir Jyoti (BPL)
Below-poverty-line households under the Kutir Jyoti scheme. Flat ₹7.42/unit with a fixed charge of ₹20 per connection per month.
Rural non-domestic/commercial supply. Billed on kVA demand and kVAh energy: flat ₹7.79/kVAh, fixed ₹60/kVA/month. A poor power factor raises the bill directly.
NDS-II (contract load up to 0.5 kW)
Small non-domestic connections up to 0.5 kW contract load — kiosks, small shops. Flat ₹7.73/unit; fixed charge ₹150 per connection per month (cut from ₹200 in the FY 2026-27 order).
NDS-II (above 0.5 kW, up to 70 kW)
Non-domestic/commercial supply above 0.5 kW and up to 70 kW contract demand. Billed on kVA demand and kVAh energy: flat ₹7.73/kVAh, fixed ₹300/kVA/month.
Estimate your SBPDCL bill
Enter your units and sanctioned load for an itemised SBPDCL estimate. The result breaks
the bill into energy charge, fixed or demand charge, FPPA, duty,
and late-payment surcharge where applicable.
Domestic supply. The bracket in each option is the eligibility
limit — pick the one your connection actually falls under, because the rates differ
sharply between them. For commercial supply, time-of-day, solar export or arrears, the
full calculator carries every field.
SBPDCL FPPA — latest verified rate and trend
Latest verified SBPDCL FPPA (Fuel and Power Purchase Adjustment)
Typical domestic examples for a 2 kW LT Domestic (DS) connection, computed with the same engine as the calculator. Use them as a quick sanity check; your actual bill changes with sub-category, arrears, FPPA, duty and billing-period length.
The slab-wise price of the units consumed during the billing period. In telescopic slabs, each band is billed at its own rate.
Fixed charge
A monthly charge linked to sanctioned load, connected load, billing demand or consumer category. It applies even when usage is low.
Electricity duty
A statutory government levy. Depending on the state, it may apply on energy charges, fixed charges, or selected bill components.
FPPA (Fuel and Power Purchase Adjustment)
Fuel and power-purchase adjustment. It changes more often than the base tariff and may appear as a charge or a credit.
Arrears
Unpaid balance, corrections, security-deposit adjustments or previous-cycle amounts carried into the current bill.
LPSC
Late Payment Surcharge on overdue amounts. Check the due date and pay through the official DISCOM channel to avoid it.
Frequently asked questions
How do I calculate my SBPDCL electricity bill?
Open the SBPDCL bill calculator, enter your units consumed and sanctioned load, and it applies the 2026-27 SBPDCL slab rates, fixed charge and other charges to produce an itemised provisional bill.
Which areas and cities does SBPDCL serve?
SBPDCL (South Bihar Power Distribution Company Ltd.) supplies electricity to South Bihar — Patna, Gaya, Nalanda, Aurangabad, Rohtas, etc..
What is the cheapest domestic electricity rate on SBPDCL?
SBPDCL's domestic energy charge starts at ₹7.42 per unit and rises to ₹7.42 per unit in the highest slab (LT Domestic (DS)), plus a monthly fixed charge (latest available estimate). The full slab table is above.
How do I pay my SBPDCL electricity bill online?
Pay on the official SBPDCL portal at www.sbpdcl.co.in. Use this page first to check what your bill should be, then pay on the authentic source.
SBPDCL consumer services
These services are provided by SBPDCL or the official state/DISCOM portal, not by TheDiscomBill. Use this block as a practical route map before you leave for the official site.
Pay bill or download bill
Use www.sbpdcl.co.in for the final bill, receipt and payment status. The calculator here is only for checking whether the charge lines look reasonable.
For supply, billing or meter complaints, use the official complaint portal first and keep the complaint number. The common electricity helpline in India is 1912 where supported by the state or DISCOM.
Apply for a new connection, ownership update or sanctioned-load change through the official portal. Match the load you apply for with the fixed-charge section in the tariff table below.
Figures are provisional estimates built on publicly available Bihar tariff orders. Always verify against your official SBPDCL bill — rates vary by sub-category, slab and city.