Free Tool

Indian ToD Power
Tariff Calculator

Estimate your data center electricity costs with Time-of-Day tariff intelligence. See how consumption patterns impact your monthly bill across Indian states.

State tariff references included
Peak, normal, off-peak modelling
DG and grid scenario planning
Built for Indian data centers

Configure Your Facility

kVAh billingLitigation Active

After PUE (1.6): 1,60,000 kWh | Billed: 1,68,421 kVAh (at PF 0.95)

Higher of: Actual MD, 75% of Contract Demand, or 50 kVA

kVAh billing: PF of 0.95 increases billed units by 5.3%

DG Rate: ₹22/kWh

Peak Hours35%
Normal Hours40%
Off-Peak Hours25%
Estimated Monthly Bill
₹24.25 L
Effective Rate: ₹14.97/kWh

Bill Breakdown

Energy Charges(kVAh)₹14.55 L
Peak (35%)₹5.68 L
Normal (40%)₹5.85 L
Off-Peak (25%)₹3.02 L
Wheeling Charges (₹0.74/kVAh)₹1.25 L
Demand Charges (250 kVA × ₹600)₹1.50 L
Fuel Adjustment (₹0.72/kVAh)₹1.21 L
DG Power Charges₹44,000
Electricity Duty (9%)₹1.61 L
Subtotal₹20.55 L
GST (18%)₹3.70 L
Total Bill₹24.25 L

Maharashtra Tariff Info

Base Energy Rate₹8.68/kVAh
Wheeling Charge₹0.74/kVAh
Demand Charge₹600/kVA/month
CategoryHT I(A) Industry (General)

kVAh billing (apparent energy). Night rebate -₹1.50 (22:00-06:00) is the most aggressive night incentive. Morning peak 09-12 (+₹0.80) and evening peak 18-22 (+₹1.10) reflect solar duck curve management. Total variable cost including wheeling: ₹9.42/kVAh.

Litigation Active - MERC Case 75/2025 remanded by Bombay HC. Current rates operational but sub judice.

ToD Time Slots

Night Off-Peak22:00 - 06:00
₹-1.50/unit
Morning Normal06:00 - 09:00
Base Rate
Morning Peak09:00 - 12:00
+₹0.80/unit
Solar Hours12:00 - 18:00
Base Rate
Evening Peak18:00 - 22:00
+₹1.10/unit
Sources: MERC Case 75/2025, TNERC Order 6/2025, KERC MYT 2025, TSERC RST 2025-26

How to use this model

Start with your monthly kWh or kVAh estimate, then adjust load split between peak, normal, and off-peak windows.

  • - Compare at least two states to evaluate expansion locations
  • - Simulate DG-heavy periods for outage season planning
  • - Share outputs with finance before tariff change cycles

Assumptions

Values are based on FY 2025-26 tariff schedules and representative commercial data center categories.

Final invoices can vary due to FAC/FPPCA updates, taxes, contract demand slabs, and local regulatory circulars.

Understanding ToD Tariffs

How Time-of-Day
Pricing Works

Peak Hours

Higher rates during high-demand periods (typically evening hours). Surcharges range from +20% to +25% depending on state.

Normal Hours

Standard rates during regular business hours. Base energy charge applies without surcharges or rebates.

Off-Peak Hours

Reduced rates during low-demand periods (night hours). Rebates range from 5% to ₹1.50/unit depending on state.

Planning Use Cases

Turn Calculator Outputs Into Operational Decisions

A

Budgeting

Estimate quarterly electricity spend under different load and tariff scenarios.

B

Tenant Pricing

Model pass-through rates before contract renewals to reduce future disputes.

C

Expansion Planning

Compare state-level effective rates when evaluating new city or facility launches.

Comparison

State-wise Tariff
Quick Reference

State Base Rate Demand Charge Peak Surcharge Off-Peak Rebate
Maharashtra ₹7.45/kVAh ₹750/kVA +₹0.80-1.10 ₹1.50/unit
Tamil Nadu ₹7.50/kWh ₹608/kVA +25% 5% (Night)
Karnataka ₹6.60/kWh ₹350/kVA +₹1/unit ₹1/unit
Telangana ₹7.65/kVAh ₹500/kVA +₹1/unit Suspended*

* Rates for HT Industrial category (FY 2025-26). Sources: MERC Case 75/2025, TNERC Order 6/2025, KERC MYT 2025, TSERC RST 2025-26. Telangana night rebate suspended Dec 2025 - Mar 2026.

Want Automated ToD Billing?

BharatDCIM automates the entire billing process with real-time meter integration, automatic ToD classification, and GST-compliant invoicing.

Request Demo