Charging an electric car at home in India typically costs between ₹250 and ₹450 for a full charge, depending on your state’s electricity tariff. That works out to roughly ₹1 to ₹1.5 per kilometre — which is about one-fourth of what a petrol car costs to run. In this article, we’ll break down exactly how these numbers work, using the MG Windsor EV as a real example.
The Simple Math Behind EV Charging Cost
The formula is straightforward. You take your car’s battery capacity in kWh and multiply it by your electricity rate per unit (1 unit = 1 kWh). That gives you the cost of a full charge. From there, you divide by the range you get on that charge, and you have your per-kilometre cost.
Let’s do this with the MG Windsor EV (Excite variant), which has a 38 kWh battery and an ARAI-claimed range of 332 km. In real-world driving — city traffic, AC on, the usual — expect around 250 km on a full charge.
If your electricity rate is ₹8 per unit, a full charge costs ₹304. That gives you a running cost of about ₹1.2 per km. Compare that with a similar-sized petrol SUV doing 12-14 km/litre at ₹105/litre — you’re looking at ₹7.5 to ₹8.8 per km for petrol. The EV is nearly 6-7 times cheaper to run.
Here’s how it looks at different electricity rates:
| Electricity Rate | Full Charge Cost (38 kWh) | Cost per km (real-world ~250 km range) |
|---|---|---|
| ₹5/unit | ₹190 | ₹0.76/km |
| ₹7/unit | ₹266 | ₹1.06/km |
| ₹8/unit | ₹304 | ₹1.22/km |
| ₹10/unit | ₹380 | ₹1.52/km |
Even at the higher end of ₹10 per unit, you’re still paying a fraction of what petrol costs. That’s the core advantage of an EV — the running cost is dramatically lower no matter which state you live in.
Electricity Tariffs Vary by State — Here’s What to Expect
India doesn’t have a single electricity rate. Every state has its own tariff structure, and rates also change based on how much you consume in a month (slab-based pricing). Most domestic tariffs fall somewhere between ₹4 and ₹10 per unit.
A few examples to give you a sense:
In Punjab, domestic rates are on the higher side — roughly ₹8 to ₹10 per unit depending on your consumption slab. Delhi, on the other hand, has subsidised rates where the first 200 units are free for eligible consumers, so many EV owners there end up charging at very low effective rates. States like Gujarat and Madhya Pradesh tend to fall in the ₹4 to ₹6 range for lower consumption slabs, while Maharashtra and Karnataka sit somewhere in the ₹6 to ₹9 range depending on usage.
Some states also have time-of-day (ToD) tariffs, where electricity costs less during off-peak hours — typically late night to early morning. If your state offers this, you can save a fair bit by scheduling your charging during those cheaper windows. ZEVpoint chargers make this easy — the app lets you set day-wise and time-wise charging schedules, and you can even create multiple schedules for different days of the week. So if your weekday routine is different from weekends, you can set it up once and the charger handles the rest automatically.
The important thing to note: your EV charging doesn’t add as much to your electricity bill as you might think. A typical daily commute of 40 km uses about 6-7 kWh — that’s roughly what a medium-sized AC uses in the same time. Over a month, if you’re driving 1,000-1,200 km, you’re adding about 150-180 units to your bill. At ₹8/unit, that’s ₹1,200-₹1,440 a month on charging. Compare that to ₹7,500-₹9,000 in petrol for the same distance.
Should You Charge to 100%? The LFP Battery Reality
You might have come across advice online saying you should only charge your EV to 80% to protect battery life. That advice originally comes from NMC (Nickel Manganese Cobalt) battery chemistry, where charging to 100% regularly does cause faster degradation over time.
But here’s the thing — most EVs sold in India today, including the MG Windsor, Tata Nexon EV, and Tata Punch EV, use LFP (Lithium Iron Phosphate) batteries. LFP chemistry is fundamentally different. These batteries handle full charge cycles much better and don’t degrade the same way at 100%.
Tesla, which uses LFP batteries in several of its models, actually recommends charging to 100% regularly. Their official guidance says it helps calibrate the battery management system (BMS) and gives more accurate range readings. Tata and MG haven’t placed any 80% restriction on their LFP-equipped cars either.
So for most Indian EV owners, charging to 100% at home is perfectly normal practice. You don’t need to set timers or stress about stopping at 80%. Plug in at night, wake up to a full battery, and you’re good to go.
This also means the cost calculations in this article are based on a realistic full charge — not some partial charge scenario that leaves you short on range.
AC Charging vs DC Charging — Cost Difference
There are two ways to charge an EV: AC (alternating current) at home using a home charger, and DC (direct current) at public fast-charging stations.
AC home charging is by far the cheaper option. You’re paying your domestic electricity rate — anywhere from ₹4 to ₹10 per unit depending on your state. With a 7.4 kW home charger, the MG Windsor’s 38 kWh battery charges fully in about 7 hours. Most people plug in at night and the car is ready by morning.
DC fast charging is quicker — the Windsor can charge from 0 to 80% in about 50 minutes at a 45 kW DC station. But public DC chargers typically charge ₹15 to ₹25 per unit, which is 2-4 times your home rate. A full charge at a public station could cost ₹600-₹900 compared to around ₹300 at home.
Does that mean you should avoid DC charging entirely? Not at all. DC charging is genuinely useful in the right situations — long road trips where you need a quick top-up, emergencies when you’re running low, or simply when speed matters more to you than saving a few hundred rupees. Think of it like eating out versus cooking at home. You do most of your cooking at home because it makes sense, but eating out sometimes is convenient and perfectly fine.
The smart approach is to do the bulk of your charging at home on AC, and use DC fast chargers when the situation calls for it. That way your monthly running cost stays low while you still have the flexibility of fast charging whenever you need it.
Monthly Running Cost: A Real Example
Let’s put together a realistic monthly picture using the MG Windsor EV.
Say you drive about 1,200 km a month — that’s roughly 40 km a day, a typical city commute plus some weekend driving. The Windsor’s real-world efficiency is about 6.5 km per kWh, so you’d consume roughly 185 kWh of electricity in a month.
At ₹8 per unit (a mid-range tariff), your monthly charging cost comes to about ₹1,480.
Now compare that with a compact petrol SUV doing the same 1,200 km at an average of 13 km/litre. You’d burn through about 92 litres of petrol. At ₹105/litre, that’s ₹9,660 a month.
The difference? You save over ₹8,000 every month. That’s close to ₹1 lakh a year in fuel savings alone. Over 5 years, that adds up to nearly ₹5 lakh — which covers a significant chunk of the EV’s price premium over a petrol car.
And this doesn’t even account for the lower maintenance costs of an EV — no engine oil changes, fewer brake pad replacements thanks to regenerative braking, no clutch plates to replace. When you factor everything in, the total cost of ownership tilts firmly in the EV’s favour.
Tips to Keep Your Charging Cost Even Lower
Most of your savings happen automatically just by switching to an EV, but a few simple habits can stretch your rupee further.
Charge during off-peak hours if your state offers time-of-day tariffs. Some states have lower rates between 10 PM and 6 AM, which is when most people charge anyway. With a ZEVpoint charger, you can set multiple day-wise and time-wise schedules through the app — say, charge from 11 PM on weekdays and 2 PM on weekends if you have solar. Set it once and the charger follows the schedule on its own.
Drive in Eco mode for daily commutes. The MG Windsor’s Eco and Eco+ modes optimise power delivery and regenerative braking, which means you get more kilometres out of every kWh. Save Sport mode for when you actually want that extra push on the highway.
If you have a solar panel setup at home, you can bring your effective charging cost close to zero. Even a small 3-4 kW rooftop solar system can generate enough power for your daily driving needs. The upfront investment pays for itself over time through both EV charging savings and reduced household bills.
And a home charger like the ones from ZEVpoint gives you full control over your charging. You can monitor consumption through the app, set power limits based on your home’s wiring capacity, and track exactly how much you’re spending each month. No guesswork, no surprises on your electricity bill.
The Bottom Line
Charging an EV at home in India costs roughly ₹1 to ₹1.5 per kilometre — about 6-7 times less than running a petrol car. Even with the occasional DC fast charge thrown in, your monthly fuel bill drops from thousands to hundreds. The MG Windsor EV, for instance, costs around ₹1,500 a month to charge for a typical 1,200 km commute, compared to nearly ₹10,000 in petrol for an equivalent car.
If running costs have been holding you back from making the switch, the numbers tell a clear story. And with a reliable home charger, you can make sure most of that charging happens at the cheapest possible rate — right in your parking spot, overnight, while you sleep.
Check out ZEVpoint home chargers to find one that fits your setup and start saving from day one.
