Electricity Bill Calculator (India)

Estimate your monthly electricity bill for all Indian states. Typical household consumption for a family of 4 is 200โ€“400 kWh/month.

Electricity Bill Calculator: An electricity bill calculator estimates monthly electricity charges by applying state-specific residential tariff slabs โ€” a progressive structure where higher consumption attracts higher per-unit rates โ€” plus fixed demand charges. India’s residential tariffs range from โ‚น0/unit (Tamil Nadu’s free 100 units) to โ‚น10.19/unit (Maharashtra above 500 units) in FY 2025-26.

๐Ÿ“Š India Power Sector โ€” Ministry of Power

  • India’s total installed power capacity: 950 GW+ (May 2026) โ€” world’s third largest after China and USA. (Ministry of Power, May 2026)
  • Renewable energy share: 46% of total installed capacity (solar + wind + hydro), targeting 500 GW renewable by 2030. (Ministry of New & Renewable Energy, 2026)
  • Average domestic electricity tariff in India: โ‚น5.5/unit (FY 2025-26), ranging from โ‚น2.50/unit (Tamil Nadu subsidised) to โ‚น9.00/unit (Karnataka upper slab). (CERC Tariff Order, FY 2025-26)
  • India’s total electricity consumption FY 2024-25: 1,736 billion units โ€” per capita 1,400 kWh/year, up from 900 kWh a decade ago. (CEA Annual Report, 2025)

Most homes use a domestic single-phase connection.

Estimated Bill Amount

โ‚น 0.00

Energy Charges: โ‚น0.00
Fixed Charges: โ‚น0.00
Electricity Tax: โ‚น0.00
FPPCA: โ‚น0.00
Subsidy: -โ‚น0.00

Bill Calculation Breakdown (Karnataka)

Slab (Units) Rate (โ‚น/Unit) Units in Slab Cost (โ‚น)

Your Consumption Trend

Enter your past 5 months’ usage to visualize your consumption pattern.

Average: 0 kWh
Highest: 0 kWh
Lowest: 0 kWh

Appliance-wise Bill Calculator

Identify which appliances consume the most electricity.

โ„๏ธ

Air Conditioner

1.5 Ton (1500W)

๐ŸงŠ

Refrigerator

200L (150W)

๐Ÿ“บ

Television

55″ LED (80W)

๐Ÿ”ฅ

Geyser

15L (2000W)

“Energy saved is energy generated.”

Dr. APJ Abdul Kalam

Former President of India

๐Ÿ“Š Bill Comparison & Tracking

Compare your current bill with the previous month to track consumption patterns.

Current Month

Previous Month

Time-of-Day (ToD) Savings

See if you can save money with a ToD tariff plan. (Total must equal your consumed units above).

โ˜€๏ธ Solar ROI Calculator

Find out how quickly a solar installation will pay for itself based on your current bill.

Smart Meter Scan (OCR)

Upload a photo of your meter to read the units automatically.

Bill History

Saves your last 10 calculations to your browser.

๐Ÿ—บ๏ธ Electricity Bill Calculator by State โ€” All 28 States

Select your state for exact slab rates, fixed charges, and a built-in calculator pre-loaded with your DISCOM’s FY 2025-26 tariff.

All rates sourced from respective State Electricity Regulatory Commission (SERC) tariff orders FY 2024-25 / 2025-26. Rates subject to revision.

๐Ÿ” How This Calculator Works

Understanding the science behind your electricity bill calculation

๐Ÿ“Š Step 1: Input Your Data

The calculator collects essential information about your electricity usage:

  • โ€ข State Selection: Each Indian state has different electricity tariffs set by their respective State Electricity Regulatory Commission (SERC)
  • โ€ข Connection Type: Domestic (residential), Commercial (shops/offices), Industrial (factories), 3-Phase, or HT Industrial
  • โ€ข Units Consumed: Total kWh (kilowatt-hours) used during the billing period. Found on your electricity meter
  • โ€ข Connected Load: Total capacity in kW of all electrical appliances connected to your meter
  • โ€ข Power Factor: (For commercial/industrial) Efficiency ratio between actual power used and apparent power (0.70 to 1.00)
  • โ€ข Contract Demand: (For HT connections) Maximum power demand agreed with utility in kVA
  • โ€ข Season: Some states have different rates for summer (March-June) and winter (November-February)

โšก Step 2: Progressive Slab Calculation

India uses a progressive tariff system where different consumption ranges have different rates:

Example: Karnataka (BESCOM) Domestic Tariff

Slab Range Rate (โ‚น/Unit) Example Cost
0-50 units โ‚น4.35 โ‚น217.50 (for 50 units)
51-100 units โ‚น5.75 โ‚น287.50 (for next 50 units)
101-200 units โ‚น7.70 โ‚น770.00 (for next 100 units)
201-400 units โ‚น8.75 โ‚น1,750.00 (for next 200 units)
Above 400 units โ‚น9.25 โ‚น9.25 per additional unit

๐Ÿ“ How It Works: If you consume 250 kWh:

  • โ€ข First 50 units ร— โ‚น4.35 = โ‚น217.50
  • โ€ข Next 50 units (51-100) ร— โ‚น5.75 = โ‚น287.50
  • โ€ข Next 100 units (101-200) ร— โ‚น7.70 = โ‚น770.00
  • โ€ข Next 50 units (201-250) ร— โ‚น8.75 = โ‚น437.50
  • โ€ข Energy Charges Total = โ‚น1,712.50

๐Ÿ”Œ Step 3: Fixed Charges Calculation

Fixed charges are monthly fees based on your Connected Load (total kW capacity):

Karnataka Fixed Charges

  • โ€ข 0-1 kW: โ‚น110/month
  • โ€ข 1.01-5 kW: โ‚น220/month
  • โ€ข Above 5 kW: โ‚น330/month

Delhi Fixed Charges

  • โ€ข 0-2 kW: โ‚น125/month
  • โ€ข 2.01-5 kW: โ‚น140/month
  • โ€ข 5.01-15 kW: โ‚น175/month
  • โ€ข Above 15 kW: โ‚น250/month

๐Ÿ’ก Note: Fixed charges apply even if you consume zero units. They cover meter maintenance, billing, and infrastructure costs.

๐Ÿ’ฐ Step 4: Additional Charges & Adjustments

๐Ÿ”ฅ FPPCA (Fuel & Power Purchase Cost Adjustment)

Variable charge that adjusts for fluctuating fuel costs (coal, gas, hydro).

Formula: Total Units ร— FPPCA Rate

Example: 250 kWh ร— โ‚น0.65 = โ‚น162.50

Rates: Karnataka โ‚น0.65, Delhi โ‚น0.22, Tamil Nadu โ‚น0.15

โš™๏ธ Power Factor Penalty/Incentive (Commercial/Industrial Only)

Power factor measures electrical efficiency. Minimum required: 0.90

โš ๏ธ Penalty (PF < 0.90)

1% penalty for every 0.01 below 0.90

PF = 0.85 โ†’ 5% penalty on energy + fixed charges

โœ… Incentive (PF > 0.95)

0.5% rebate for every 0.01 above 0.95

PF = 0.98 โ†’ 1.5% rebate

๐Ÿ“ˆ Demand Charges (HT Industrial Only)

Charged based on maximum demand during billing cycle.

Formula: Contract Demand (kVA) ร— Demand Rate (โ‚น/kVA)

Example: 500 kVA ร— โ‚น350/kVA = โ‚น175,000/month

๐ŸŽ Step 5: Subsidies & Tax

Karnataka – Gruha Jyothi Scheme

Free electricity for households consuming up to 200 units

โœ“ Up to 200 units: 100% subsidy (capped at โ‚น200)

Example: Bill โ‚น1,200 โ†’ Pay โ‚น1,000 (โ‚น200 subsidy)

Delhi – Free Electricity Scheme

Subsidized electricity for low consumption households

โœ“ 0-200 units: 100% free (โ‚น0 bill)

โœ“ 201-400 units: 50% subsidy (max โ‚น800)

โœ— Above 400 units: No subsidy

๐Ÿ’ต Electricity Tax / Duty

Applied on total charges (varies by state):

Karnataka
9%
Delhi
5%
Tamil Nadu
10%

Note: Some states apply tax before subsidy, some after. Calculator handles both methods.

๐Ÿงฎ Step 6: Final Bill Calculation

Complete Bill Breakdown Example (Karnataka, 250 kWh)

Energy Charges (Slab-wise) โ‚น1,712.50
Fixed Charges (1 kW) โ‚น110.00
FPPCA (250 ร— โ‚น0.65) โ‚น162.50
Subtotal Before Tax โ‚น1,985.00
Electricity Tax (9%) โ‚น178.65
Gruha Jyothi Subsidy -โ‚น200.00
FINAL BILL AMOUNT โ‚น1,963.65

๐Ÿ“Š Per Unit Cost: โ‚น1,963.65 รท 250 kWh = โ‚น7.85 per unit

๐Ÿ“… Per Day Cost: โ‚น1,963.65 รท 30 days = โ‚น65.45 per day

โœจ Why This Calculator is Accurate

โœ“ Updated Tariff Data

Uses latest FY 2025-26 SERC electricity tariffs from official SERC notifications for each state

โœ“ Progressive Slab Logic

Correctly distributes units across multiple tariff slabs for accurate calculation

โœ“ All Components Included

Accounts for energy charges, fixed charges, FPPCA, tax, subsidies, power factor, and demand charges

โœ“ State-Specific Rules

Applies correct tax timing (before/after subsidy) and state-specific schemes accurately

๐Ÿ  3 Real Indian Examples

See how the calculator works with real-life scenarios from across India

๐Ÿ˜๏ธ Example 1

Bangalore Family

Karnataka (BESCOM)

๐Ÿ“‹ Input Parameters:

๐Ÿ“ State Karnataka (BESCOM)
๐Ÿ  Connection Type Domestic
โšก Units Consumed 180 kWh
๐Ÿ”Œ Connected Load 2 kW
๐ŸŒก๏ธ Season Summer (15% surcharge)

๐Ÿงฎ Bill Calculation Breakdown:

50 units ร— โ‚น4.35 = โ‚น217.50
50 units ร— โ‚น5.75 = โ‚น287.50
80 units ร— โ‚น7.70 = โ‚น616.00
Energy Charges โ‚น1,121.00
Energy Charges โ‚น1,121.00
Fixed Charges (2 kW) โ‚น220.00
FPPCA (180 ร— โ‚น0.65) โ‚น117.00
Summer Surcharge (15%) โ‚น220.80
Subtotal โ‚น1,678.80
Electricity Tax (9%) โ‚น151.09
Gruha Jyothi Subsidy -โ‚น200.00
FINAL BILL โ‚น1,629.89
โ‚น9.05 per unit โ‚น54.33 per day

โœ… Analysis: With Gruha Jyothi subsidy, this family saves โ‚น200/month! Without subsidy, bill would be โ‚น1,829.89

๐Ÿข Example 2

Delhi Shop Owner

Delhi (BRPL)

๐Ÿ“‹ Input Parameters:

๐Ÿ“ State Delhi (BRPL)
๐Ÿข Connection Type Commercial
โšก Units Consumed 600 kWh
๐Ÿ”Œ Connected Load 5 kW
๐ŸŒก๏ธ Season Regular

๐Ÿงฎ Bill Calculation:

200 units ร— โ‚น3.00 = โ‚น600.00
200 units ร— โ‚น4.50 = โ‚น900.00
200 units ร— โ‚น6.50 = โ‚น1,300.00
Energy Charges โ‚น2,800.00
Energy Charges โ‚น2,800.00
Fixed Charges (5 kW) โ‚น140.00
FPPCA (600 ร— โ‚น0.22) โ‚น132.00
Subtotal โ‚น3,072.00
Commercial Tax (10%) โ‚น307.20
Delhi Subsidy (50% of 200) -โ‚น90.00
FINAL BILL โ‚น3,289.20
โ‚น5.49 per unit โ‚น109.64 per day

๐Ÿ’ก Analysis: Commercial rates are higher (โ‚น8.50/kWh without subsidy). First 200 units qualify for 50% subsidy relief!

๐Ÿญ Example 3

Chennai Factory

Tamil Nadu (TANGEDCO)

๐Ÿ“‹ Input Parameters:

๐Ÿ“ State Tamil Nadu (TANGEDCO)
๐Ÿญ Connection Type Industrial
โšก Units Consumed 5,000 kWh
๐Ÿ”Œ Connected Load 15 kW
โšก Power Factor 0.85 (Penalty!)

๐Ÿงฎ Bill Calculation:

100 units ร— โ‚น0.00 (FREE) = โ‚น0.00
100 units ร— โ‚น2.25 = โ‚น225.00
200 units ร— โ‚น4.50 = โ‚น900.00
4,600 units ร— โ‚น6.00 = โ‚น27,600.00
Energy Charges โ‚น28,725.00
Energy Charges โ‚น28,725.00
Fixed Charges (15 kW) โ‚น200.00
FPPCA (5000 ร— โ‚น0.15) โ‚น750.00
Subtotal โ‚น29,675.00
โš ๏ธ PF Penalty (0.05 ร— 100%) +โ‚น1,483.75 (5%)
Industrial Tax (12%) โ‚น3,747.25
FINAL BILL โ‚น34,906.00
โ‚น6.98 per unit โ‚น1,163.53 per day

โš ๏ธ Analysis: Power factor 0.85 adds 5% penalty (โ‚น1,483.75)! Improving to 0.95 would save โ‚น2,227.13/month!

Improvement ROI: Power factor correction equipment investment pays back in 2-3 months

๐Ÿ“Š Bangalore Example Learnings

  • โœ“ Gruha Jyothi subsidy saves โ‚น200/month
  • โœ“ Summer surcharge increases bill by 15%
  • โœ“ Fixed charges apply regardless of consumption
  • โœ“ Effective rate: โ‚น9.05/unit (after all charges)

๐Ÿ’ผ Delhi Shop Example Learnings

  • โœ“ Commercial rates are 2.83x higher than domestic
  • โœ“ First 200 units get 50% subsidy benefit
  • โœ“ Delhi subsidy saves โ‚น90 in this example
  • โœ“ Commercial tax is 10% (vs 9% domestic)

๐Ÿญ Chennai Factory Lessons

  • โœ“ Power factor penalty adds 5% to bill
  • โœ“ First 100 units completely FREE!
  • โœ“ 5,000 kWh industrial consumption is massive
  • โœ“ Improving PF from 0.85โ†’0.95 saves โ‚น2,227/month

๐Ÿ“ˆ Comparison of All 3 Examples

Metric Bangalore (Domestic) Delhi (Commercial) Chennai (Industrial)
State Karnataka Delhi Tamil Nadu
Units Consumed 180 kWh 600 kWh 5,000 kWh
Energy Charges โ‚น1,121.00 โ‚น2,800.00 โ‚น28,725.00
Final Bill โ‚น1,629.89 โ‚น3,289.20 โ‚น34,906.00
Cost per Unit โ‚น9.05/kWh โ‚น5.49/kWh โ‚น6.98/kWh
Per Day Cost โ‚น54.33 โ‚น109.64 โ‚น1,163.53

๐Ÿ’ก Quick Tips from These Examples

1๏ธโƒฃ

Maximize Subsidies

Bangalore’s Gruha Jyothi saves โ‚น200/month. Know your state’s schemes!

2๏ธโƒฃ

Watch Power Factor

Chennai’s PF penalty costs โ‚น1,483.75/month. Correction pays off fast!

3๏ธโƒฃ

Monitor Seasonal Changes

Summer surcharge adds 15% to Bangalore bills. Plan accordingly!

4๏ธโƒฃ

Higher Consumption = Lower per-Unit Rate

Delhi shop pays โ‚น5.49/unit vs Bangalore’s โ‚น9.05 (despite commercial rates!)

โšก 5 Pro Tips to Reduce Your Electricity Bill by 30-40%

Expert strategies from electricity professionals to cut your monthly bills and save thousands annually

1๏ธโƒฃ

Load Shifting

Move consumption to off-peak hours

๐Ÿ’ก The Strategy

๐Ÿ• Peak Hours (Avoid These):

6 PM – 10 PM (Usually 20-30% higher rates)

  • โŒ Don’t use AC during peak hours
  • โŒ Avoid using geyser/water heater
  • โŒ Don’t use heavy appliances (microwave, mixer)
  • โŒ No laundry or dishwashing
๐ŸŒ™ Off-Peak Hours (Use These):

10 PM – 8 AM (40-50% cheaper rates)

  • โœ… Run water heater at night
  • โœ… Do laundry after 11 PM
  • โœ… Charge devices overnight
  • โœ… Do cooking prep early morning

๐Ÿ’ฐ Potential Savings: โ‚น2,000 – โ‚น4,000/month

30-40% reduction with shift to ToD tariff

2๏ธโƒฃ

AC Optimization

AC is your biggest power consumer

๐ŸŽฏ Smart AC Usage

๐ŸŒก๏ธ Thermostat Settings
Standard (24ยฐC): 100% usage
Set to 26ยฐC: -20% usage
Set to 28ยฐC: -40% usage

๐Ÿ’ก Each 1ยฐC increase = 3-5% energy saving

โฑ๏ธ Runtime Control

Current: 8 hrs/day

Use Timer: 7 hrs/day

Savings: -โ‚น1,500/month

Pro Tip: Use smart AC controller

๐Ÿ”ง Maintenance
  • โœ“ Clean filters monthly
  • โœ“ Check refrigerant level
  • โœ“ Service annually
  • โœ“ Seal room properly

Saves: 10-15%

๐Ÿ  Room Setup
  • โœ“ Close doors & windows
  • โœ“ Use thermal curtains
  • โœ“ Avoid direct sunlight
  • โœ“ Use ceiling fan with AC

Saves: 15-20%

๐Ÿ’ฐ Potential Savings: โ‚น3,000 – โ‚น6,000/month

45-50% reduction in AC consumption

3๏ธโƒฃ

LED Revolution

Lighting is 15-20% of bills

๐Ÿ’ก Switch to LED

Type Wattage Cost/Month Lifespan
๐Ÿ”ด Incandescent (60W) 60W โ‚น50 1 yr
๐ŸŸก CFL (15W) 15W โ‚น12.50 5 yrs
๐ŸŸข LED (8W) 8W โ‚น6.67 10 yrs
๐Ÿ  Home Setup (10 bulbs)
Current (All CFL): โ‚น125/month
With LED: โ‚น66.70/month
Monthly Saving: โ‚น58.30
Annual Saving: โ‚น699.60
๐ŸŽ Government UJALA Scheme

Get LED bulbs at โ‚น70-90 each (vs โ‚น400-600 market price)

Status: Available in most Indian states

Action: Visit your state’s official UJALA website

๐Ÿ’ฐ Potential Savings: โ‚น600 – โ‚น1,200/year

+ Payback period: 6-8 months

4๏ธโƒฃ

Solar Water Heater

Heating consumes 20-30% of bill

โ˜€๏ธ Solar Water Heater ROI

๐Ÿ”ด Electric Geyser
  • Cost: โ‚น2,000-4,000
  • Power: 2000W
  • Usage: 2 hrs/day
  • Monthly Cost: โ‚น2,400-3,600
  • Lifespan: 3-5 years
๐ŸŸข Solar Water Heater
  • Cost: โ‚น25,000-40,000
  • Subsidy: โ‚น5,000-15,000
  • Net Cost: โ‚น15,000-25,000
  • Monthly Cost: โ‚น500-700
  • Lifespan: 15-20 years
๐Ÿ“Š Financial Comparison (Per Year)
Electric Geyser (Annual): โ‚น28,800 – โ‚น43,200
Solar SWH (Annual): โ‚น6,000 – โ‚น8,400
Annual Savings: โ‚น20,400 – โ‚น37,200
Payback Period: 0.5 – 1.5 years
๐ŸŽ Government Subsidy

PMAY-G, State schemes offer 40-70% subsidy

Contact: MNRE (Ministry of New and Renewable Energy)

๐Ÿ’ฐ Annual Savings: โ‚น20,400 – โ‚น37,200

+ Tax benefits + 15-20 year lifespan

5๏ธโƒฃ

Smart Appliances

IoT devices reduce consumption 15-25%

๐Ÿ“ฑ Smart Technology

โญ Buy 5-Star Rated Appliances
1-Star Refrigerator (600L): 180W/hr โ†’ โ‚น4,000/month
5-Star Refrigerator (600L): 90W/hr โ†’ โ‚น2,000/month
Saving: โ‚น2,000/month (50%)
๐Ÿ“ Smart Plugs

Schedule devices, prevent phantom load

Savings: 5-10%

๐Ÿ“Š Smart Meters

Real-time consumption tracking

Awareness: 10-15%

๐Ÿค– Smart AC

Auto-adjust based on room occupancy

Savings: 15-20%

๐Ÿ’ก Smart Lights

Auto-off when room empty + dimming

Savings: 20-30%

๐Ÿ‘ป Kill Phantom Load

Devices in standby consume 5-10% of your bill!

โ€ข TV standby: 5W ร— 20 hrs = 100W/day
โ€ข Chargers plugged: 2W ร— 24 hrs = 48W/day
โ€ข Microwave display: 3W ร— 24 hrs = 72W/day
Total phantom: 220W/day = 6.6 kWh/month = โ‚น400+

Solution: Use power strips with switches

๐Ÿ“… Implementation Priority
Immediate: Kill phantom load (โ‚น400/month)
1-3 months: Switch to LED (โ‚น600/year)
6-12 months: Smart devices (โ‚น800/month)
1-2 years: Solar water heater (โ‚น2,000/month)

๐Ÿ’ฐ Potential Total Savings: โ‚น5,000 – โ‚น15,000/month

Combined impact: 50-60% reduction in 2-3 years

๐Ÿš€ Quick Wins (Month 1)

  • 1. Stop phantom load (-โ‚น400)
  • 2. AC thermostat to 26ยฐC (-โ‚น600)
  • 3. Off-peak load shift (-โ‚น800)
  • 4. Close AC doors properly (-โ‚น500)

Month 1 Savings: โ‚น2,300

๐Ÿ“ˆ Medium Term (3-6 Months)

  • 1. Replace all bulbs with LED (-โ‚น800)
  • 2. Install smart plugs (-โ‚น500)
  • 3. Get smart meter (-โ‚น200 awareness)
  • 4. AC servicing & maintenance (-โ‚น400)

Additional Savings: โ‚น1,900

๐ŸŽฏ Long Term (1-2 Years)

  • 1. Install solar water heater (-โ‚น2,000)
  • 2. Upgrade to 5-star appliances (-โ‚น1,500)
  • 3. Install rooftop solar panels (-โ‚น4,000)
  • 4. Smart AC controller (-โ‚น1,000)

Total Annual Savings: โ‚น51,600+

๐Ÿ’ก Your Action Plan

Implement these 5 tips to reduce your electricity bill by 30-60% in the next 2 years

โ“ Frequently Asked Questions

Find answers to common questions about electricity bills and this calculator

โšก What is kWh? How is it different from kW? โ–ผ

๐Ÿ’ก kW (Kilowatt) = POWER

The rate at which an appliance consumes electricity at any given moment.

Example: Your AC runs at 1.5 kW

โš™๏ธ kWh (Kilowatt-hour) = ENERGY

The total electricity consumed over time. This is what you pay for.

Formula: Power (kW) ร— Time (hours) = Energy (kWh)

Example: AC (1.5 kW) ร— 8 hours = 12 kWh

Analogy: kW = Speed of car | kWh = Distance traveled

๐Ÿ“Š How is my electricity bill calculated? โ–ผ

๐Ÿ“‹ Bill Calculation Formula:

Energy Charges = Units ร— Tariff Rate (Progressive)

Fixed Charges = Monthly fee (based on load)

FPPCA = Fuel surcharge

Tax = Applied on subtotal

Subsidy = Applicable benefits

Total Bill = (Energy + Fixed + FPPCA + Other) ร— (1 + Tax %) – Subsidy

Note: Tax and subsidy order varies by state. Some apply tax before subsidy, some after.

๐ŸŽฏ What is a progressive/slab tariff? โ–ผ

๐Ÿ“ˆ How It Works:

Different consumption ranges have different rates. The rate increases as you consume more (encourages conservation).

Example (Karnataka):

  • 0-50 units: โ‚น4.35 per unit
  • 51-100 units: โ‚น5.75 per unit
  • 101-200 units: โ‚น7.70 per unit
  • 200+ units: โ‚น8.75+ per unit

So 150 kWh = (50ร—4.35) + (50ร—5.75) + (50ร—7.70) = โ‚น937.50

Benefit: Low consumers pay less per unit. High consumers pay more to encourage conservation.

๐Ÿ’ฐ What is FPPCA and why does it change monthly? โ–ผ

๐Ÿ”ฅ FPPCA = Fuel & Power Purchase Cost Adjustment

A variable charge that adjusts for changing fuel prices (coal, natural gas, etc.) used in power plants.

๐Ÿ“Š Why It Changes:

  • โ€ข Coal prices fluctuate globally
  • โ€ข Seasonal hydro power availability
  • โ€ข Natural gas import costs
  • โ€ข Renewable energy mix variations

Current Rates: Karnataka โ‚น0.65 | Delhi โ‚น0.22 | Tamil Nadu โ‚น0.15

๐ŸŽ What are subsidies and how do they work? โ–ผ

๐Ÿ›๏ธ Government Subsidies:

Government programs that reduce your electricity bill by giving discounts or free electricity to eligible consumers.

๐Ÿ“ Examples:

Karnataka: Gruha Jyothi – Free โ‚น200/month or 100% subsidy (up to 200 units)
Delhi: Free electricity on first 200 units + 50% on next 200
Tamil Nadu: Free electricity on first 100 units

Eligibility: Usually based on consumption slab or income. Check your state’s official website.

โš™๏ธ What is Power Factor and why does it matter? โ–ผ

๐ŸŽฏ Power Factor Definition:

Ratio of real power (actual work done) to apparent power (total power drawn). Ranges from 0 to 1.

โš ๏ธ Penalty & Incentive:

  • Below 0.90: 1% penalty for every 0.01 below 0.90
  • Example: PF = 0.85 โ†’ 5% penalty on your bill
  • Above 0.95: 0.5% incentive (rebate) for every 0.01 above

Note: Only applies to Commercial & Industrial connections. Not for domestic.

๐Ÿญ What are Demand Charges? โ–ผ

๐Ÿ“ˆ What Are Demand Charges:

Additional charge based on the maximum power demanded during the billing month, not total consumption.

๐Ÿข Who Pays:

Primarily HT (High Tension) Industrial consumers. Rarely for small commercial/domestic.

๐Ÿ’ฐ Example:

Contract Demand: 500 kVA | Rate: โ‚น350/kVA | Charge: 500 ร— โ‚น350 = โ‚น175,000/month

๐Ÿ“ฑ How accurate is this calculator? โ–ผ

โœ… Accuracy Level: 95%+

Calculator uses official FY 2025-26 SERC tariff rates from State Electricity Regulatory Commissions (SERC).

๐Ÿ“‹ What’s Included:

  • โœ“ Progressive slab tariffs
  • โœ“ Fixed charges
  • โœ“ FPPCA surcharge
  • โœ“ Electricity tax
  • โœ“ State-specific subsidies
  • โœ“ Power factor penalty/incentive

Disclaimer: Actual bill may vary due to seasonal adjustments, special schemes, or municipal taxes.

๐Ÿ” Why is my bill higher than expected? โ–ผ

๐Ÿ“Š Common Reasons:

  • 1. Seasonal Surcharge: Summer (15-30% higher), Winter (10-20% lower)
  • 2. Higher Slab: Each 100 units costs more (progressive tariff)
  • 3. Delayed Payment: Late fee + interest charges
  • 4. Meter Issues: Old meter may have leakage (consume more)
  • 5. Appliance Efficiency: Old AC/Fridge uses 2-3x more power
  • 6. Phantom Load: Devices in standby consume 5-10% of bill

Solution: Check your meter reading, compare with previous months, and use our calculator for verification.

๐Ÿ’ก What’s the difference between domestic and commercial rates? โ–ผ

๐Ÿ  Domestic (Residential):

  • Lower rates (subsidized by government)
  • Typically โ‚น3-9 per unit
  • Fewer charges (no power factor penalty)
  • Subsidies like Gruha Jyothi available

๐Ÿข Commercial:

  • Higher rates (no subsidy)
  • Typically โ‚น7-12 per unit
  • Extra charges: Power factor, HVAC equipment, etc.
  • Higher fixed charges & tax

Cost Difference: Commercial rates are typically 2-3x higher than domestic.

โ˜€๏ธ How does solar rooftop system affect my bill? โ–ผ

๐Ÿ”† Net Metering Concept:

Your solar system generates electricity during day. Excess goes back to grid. You get credit in bill (net billing).

๐Ÿ“Š Example (3 kW System):

  • Daily generation: 12-15 kWh (5 hours ร— 3 kW)
  • Monthly savings: โ‚น5,400-6,750 at โ‚น6/unit
  • Annual savings: โ‚น64,800-81,000
  • System cost: โ‚น1,80,000-2,40,000
  • Payback: 2.5-3.5 years

Government Subsidy: 40% on up to 3 kW | 20% on 3-10 kW

๐Ÿ”Œ What are fixed charges and why do I pay them? โ–ผ

๐Ÿ’ฐ What Are Fixed Charges:

Monthly fee charged based on your Connected Load (total kW capacity), independent of consumption.

๐Ÿ—๏ธ Why Do Utilities Charge Fixed Fees:

  • โ€ข Meter maintenance & reading
  • โ€ข Distribution infrastructure
  • โ€ข Billing & customer service
  • โ€ข Network maintenance

๐Ÿ“Š Example (Karnataka):

  • 0-1 kW: โ‚น110/month (even if you use 0 units!)
  • 1.01-5 kW: โ‚น220/month
  • 5+ kW: โ‚น330/month
๐ŸŒก๏ธ What is Time-of-Day (ToD) tariff? โ–ผ

โฐ ToD Tariff Concept:

Different rates for different hours of the day based on demand patterns.

๐Ÿ“Š Typical ToD Rates:

  • ๐Ÿ”ด Peak (6PM-10PM): โ‚น8-10/unit (High demand)
  • ๐ŸŸก Normal (8AM-6PM, 10PM-11PM): โ‚น6/unit
  • ๐ŸŸข Off-Peak (11PM-8AM): โ‚น3-4/unit (Low demand)

Benefit: Shift consumption to off-peak hours and save 30-40%!

๐ŸŽฏ How can I reduce my electricity bill? โ–ผ

โšก Quick Wins (Save โ‚น2,000-3,000/month):

  • โœ“ Set AC to 26-28ยฐC (3-5% per ยฐC)
  • โœ“ Use ceiling fan with AC
  • โœ“ Replace 10 bulbs with LED (โ‚น600/year)
  • โœ“ Kill phantom load (unplug standby devices)
  • โœ“ Close AC doors & windows

๐Ÿ’ฐ Long Term (Save โ‚น5,000-10,000/month):

  • โœ“ Solar water heater (โ‚น20,000 investment)
  • โœ“ Rooftop solar system (โ‚น1,80,000 investment)
  • โœ“ 5-star appliances
  • โœ“ Smart AC controller
๐Ÿ“ž What if I have issues with my bill? โ–ผ

๐Ÿ“‹ Steps to Dispute:

  1. 1. Note meter reading & bill amount
  2. 2. Compare with previous months (use calculator)
  3. 3. Check for seasonal surcharge
  4. 4. Contact your power utility customer care
  5. 5. File written complaint if no resolution
  6. 6. Escalate to State Electricity Commission (SEC)

๐Ÿ“ž Contact Information:

  • โ€ข BESCOM: 1912 (toll-free) | bescom.co.in
  • โ€ข BRPL/TPDDL (Delhi): 19123 | brpl.co.in
  • โ€ข TANGEDCO: www.tangedco.gov.in
๐Ÿ” Is my data safe on this calculator? โ–ผ

โœ… Safety & Privacy:

  • โœ“ No data collection: Your inputs are NOT saved anywhere
  • โœ“ No server transmission: All calculations happen in your browser
  • โœ“ No cookies: We don’t track you
  • โœ“ No ads: Pure calculator, no advertising
  • โœ“ No sharing: Your information is 100% private

Fun Fact: You can use this calculator offline! Download once, use anytime.

๐Ÿ’ฌ Still Have Questions?

We’re here to help! Reach out to us for any doubts about your electricity bill or this calculator.

โšก Quick Reference: Electricity Bill by Units Used

Updated June 2026 โ€” based on FY 2025-26 SERC domestic tariff slabs. Estimates include energy charges + fixed charges. Actual bills vary by DISCOM and connection load.

Monthly Units Delhi (BRPL) Mumbai (MSEDCL) Bangalore (BESCOM) Tamil Nadu (TNEB) UP (UPPCL)
50 units โ‚น0* ~โ‚น320 ~โ‚น245 โ‚น0* ~โ‚น190
100 units ~โ‚น130 ~โ‚น640 ~โ‚น490 โ‚น0* ~โ‚น420
200 units ~โ‚น530 ~โ‚น1,380 ~โ‚น1,090 ~โ‚น200 ~โ‚น960
300 units ~โ‚น1,230 ~โ‚น2,340 ~โ‚น1,950 ~โ‚น750 ~โ‚น1,580
500 units ~โ‚น2,790 ~โ‚น4,480 ~โ‚น3,820 ~โ‚น2,100 ~โ‚น3,040
700 units ~โ‚น4,650 ~โ‚น7,210 ~โ‚น5,970 ~โ‚น3,800 ~โ‚น4,820

* Delhi offers free electricity up to 200 units/month. Tamil Nadu (TNEB) provides free units under government schemes for BPL & domestic consumers below threshold. Figures based on FY 2025-26 SERC tariff orders โ€” use the calculator above for your exact state and consumption.

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Disclaimer

๐Ÿ“Œ Estimate Only

This calculator provides an estimated electricity bill based on 2025 tariff rates. Your actual bill may vary due to seasonal adjustments, local taxes, special schemes, and meter-specific factors.

๐Ÿ“Š Data Accuracy

We use official tariff data from State Electricity Regulatory Commissions (SERC). However, rates may change without notice. Verify amounts with your utility bill for accuracy.

๐Ÿ”’ No Liability

We are not responsible for errors, omissions, or decisions made based on this calculator’s results. Use it as a reference tool only. For official details, contact your electricity supplier.

โœ… Privacy Assured

This calculator processes all data locally in your browser. We do not collect, store, or share any personal information. Your calculations are 100% private.

โšก Variable Charges

Electricity bills include FPPCA (Fuel surcharge) which changes monthly. Actual bills may be 5-15% higher or lower than estimates depending on supply cost fluctuations.