ElectricityBillcalc.com India Tariff Engine 2026
Smart Grid Guide

Smart Meter Reading & Time of Day (TOD) Guide

Understand prepaid/postpaid smart meters, digital display parameters, and how to save money using Time of Day tariffs.

1. Reading Parameters on Smart Meters

Digital smart meters cycle automatically through display screens every 5 seconds:

KWH Active Cumulative Energy Consumed (Your main billing reading)
KW Maximum Demand (Peak load recorded during the billing cycle)
PF Power Factor (ideally between 0.95 and 1.00)

2. Time of Day (TOD) Tariffs

With smart meters, DISCOMs introduce Time of Day (TOD) tariffs:

  • Solar / Day Hours (8 AM to 4 PM): 10% to 20% tariff discount (cheapest time to run heavy appliances like washing machines & EV charging).
  • Peak Hours (6 PM to 10 PM): 10% to 20% tariff surcharge during evening peak demand.
  • Normal Hours: Regular slab tariff rate.
Energy Saving Guide

Practical Ways to Reduce Your Electricity Bill

Simple household adjustments can reduce your monthly power consumption and keep you in lower tariff slabs.

❄️

AC at 24°C–26°C

Each degree higher saves ~6% electricity. Running at 24°C instead of 18°C can lower your monthly cooling bill by ~24%.

🌀

5-Star BLDC Fans

Brushless DC (BLDC) motor fans consume only 28W compared to 75W for traditional ceiling fans, cutting fan power usage by over 60%.

Kill Standby Vampires

Appliances in standby mode (TVs, set-top boxes, chargers) consume 5–10% idle electricity. Turn them off at the main switch.

☀️

PM Surya Ghar Solar

Residential rooftop solar installations receive up to ₹78,000 in central subsidies, generating free green power with net-metering.

🧊

Geyser & Fridge Care

Clean refrigerator condenser coils annually and set geysers to 50°C with an auto-timer to prevent overheating and energy waste.

💡

100% LED Lighting

Energy-efficient 9W LED bulbs output the same light as 60W incandescent lamps while consuming 85% less electricity.

Methodology & Breakdown

How Electricity Bill Estimation Works in India

Full Calculation Formula →
01

Telescopic Slabs

Consumed units (kWh) are split into progressive tariff tiers with respective unit rates.

02

Fixed Demand Fees

Monthly fixed charges are calculated per kW (or kVA) of sanctioned load.

03

Surcharges & Duty

Fuel Adjustment Charges (FAC/FPPPA) and state electricity duty percentages are added.

04

Subsidies Applied

State government zero-bill / free unit schemes (e.g. Gruha Jyothi, DERC) are deducted for the final estimate.

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Tariff Estimation Notice:

All calculations and reports on ElectricityBillcalc.com are estimated models computed according to published State Electricity Regulatory Commission (SERC) tariff schedules for FY 2025-26. Actual utility bills may include municipal taxes, meter rent, arrears, or power factor adjustments. Please verify against your official electricity board invoice.