How much does it cost to charge a Tata Nexon EV at home per month?

Driving 40 km daily (1,200 km monthly) in a Tata Nexon EV (40.5 kWh battery, 300 km range) draws ~184.09 Units of grid electricity per month. At a domestic rate of ₹7.50/unit, the monthly electricity bill is ~₹1,380.68 (~₹1.15/km).

What is the running cost difference between an EV and a petrol car in India?

An Electric Vehicle (EV) charged at home costs ~₹1.10 to ₹1.40 per km. A petrol car giving 15 km/L at ₹100/L costs ~₹6.67 per km—resulting in over 80% fuel savings (saving ~₹6,600/month or ₹79,000/year for 40 km daily driving).

What is AC Onboard Charger Efficiency in EV charging?

EV home chargers supply AC power from your wall socket, which the car's onboard charger converts to DC power to charge the battery pack. Onboard chargers operate at ~85%–90% efficiency (around 10%–15% energy loss during AC-to-DC conversion).

Do state DISCOMs offer dedicated EV charging electricity tariffs in India?

Yes. Major states including Delhi, Maharashtra, Karnataka, and Tamil Nadu have established dedicated EV charging tariffs (~₹4.50 to ₹6.00 per unit) or permit home EV charging under standard domestic slab rates.

IS 17017 & Ministry of Power (MoP) AC Charging Standard

EV Home Charging Electricity Cost & ROI Calculator

Calculate exact electricity units, monthly charging bills, cost per km, and petrol savings for Electric Cars and 2-Wheelers.

IS 17017 Safety Standards · ~88% AC L2 Engineering Benchmark

EV Home Charging Electricity Cost & Petrol Savings Calculator

[REPRESENTATIVE INDUSTRY BENCHMARK]

1. Select EV Category Benchmark

Daily Driving Distance (km / day)

Petrol Fuel Price (₹ / Liter)

Petrol Car Mileage (km / Liter)

Tariff Calculation Bridge

Monthly EV Charging Electricity Bill

₹1411.03

Based on 184.09 Units/month (1200 km)

EV Running Cost vs Petrol

₹1.18 / km

vs Petrol ₹6.67 / km

Monthly Fuel Savings vs Petrol

₹6588.97

Saves ₹79067.64 Every Year!

Active Tariff Engine

UPPCL

UPPCL Urban LMV-1 EV Tariff Engine (UPERC Order)

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EV Running Cost Savings Highlight

Driving 1200 km monthly with electric power saves ₹79067.64 per year compared to running a petrol car!

82.4% Fuel Savings

🧾 Step-by-Step Calculation Audit Proof

Daily Battery & Grid AC Energy Required

Battery: (40 km × 40.5 kWh) ÷ 300 km | Grid AC: ÷ 0.88 Eff

5.4 kWh Battery | 6.136 kWh Grid/day

Monthly Grid AC Energy Consumption

6.136 kWh/day × 30 days

184.09 Units / month

EV Running Cost vs Petrol Vehicle

EV Cost: ₹1.18/km vs Petrol: ₹6.67/km

EV ₹1.18/km vs Petrol ₹6.67/km

Estimated Monthly Electricity Bill & Fuel Savings

184.09 Units via UPPCL Urban LMV-1 EV Tariff Engine (UPERC Order)

EV Bill: ₹1411.03/mo | Saves ₹6588.97/mo vs Petrol

EV Standards & Engineering Efficiency Disclosure:

EV home conductive charging interfaces comply with BIS IS 17017 safety, connector, and protocol standards.
Grid AC energy drawn incorporates an engineering benchmark of ~88% AC Level 2 onboard charger conversion efficiency (accounting for inverter/rectifier conversion, thermal, and BMS balancing losses). IS 17017 does not mandate an efficiency percentage.
Calculated energy and cost figures preserve double precision internally while rounding presentation values.

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Universal Unit Converter Hub

Convert Watts to kW and kWh to electricity billing units.

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Solar Rooftop ROI Calculator

Calculate zero-cost EV home charging via rooftop solar panels.

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Air Conditioner Power Calculator

Calculate BEE 1-5 Star AC power consumption & ISEER savings.

How EV Home Charging Electricity Consumption is Measured

EV home charging electricity draw incorporates grid AC energy drawn by the onboard charger, factoring in ~88% conversion efficiency when charging the battery pack.

Daily Battery Energy (kWh) = (Daily Driving km × Battery Pack kWh) ÷ Full Charge Range km

Daily Grid AC Energy Drawn (kWh) = Daily Battery Energy ÷ Charger Efficiency (0.88)

Worked Example (Tata Nexon EV 40.5 kWh, 40 km/day): 6.136 kWh/day $\rightarrow$ 184.09 Units/month (₹1,380.68/month @ ₹7.50/unit $\rightarrow$ ₹1.15/km vs Petrol ₹6.67/km $\rightarrow$ Saves ₹6,619.32/month!)

Popular EV Model Battery & Charging Comparison Table

EV Model	Battery Capacity	Claimed Range	Monthly Grid Units (40 km/day)	Monthly Charging Bill (30 days @ ₹7.50/unit)
Tata Nexon EV Long Range	40.5 kWh	300 km	184.09 Units	₹1,380.68 / month
Tata Tiago EV Long Range	24.0 kWh	200 km	163.64 Units	₹1,227.27 / month
MG ZS EV Exclusive	50.3 kWh	340 km	201.74 Units	₹1,513.04 / month
Ather 450X Scooter	3.7 kWh	110 km	45.87 Units	₹344.02 / month