Low slab (0-100 units)
₹4.1
per kWh
EV owners (300-500 units)
₹7.5
per kWh — your typical rate
High slab (500+ units)
₹8.6
per kWh
Full-charge cost by battery size in Bihar
At Bihar's domestic rate of ₹7.5/kWh.
| Battery | Home (₹7.5/kWh) | DC fast (~₹20/kWh) | Petrol equivalent |
|---|---|---|---|
| 20 kWh | ₹150 | ₹400 | ₹233 |
| 30 kWh | ₹225 | ₹600 | ₹349 |
| 40 kWh | ₹300 | ₹800 | ₹466 |
| 50 kWh | ₹375 | ₹1,000 | ₹582 |
| 70 kWh | ₹525 | ₹1,400 | ₹815 |
| 100 kWh | ₹750 | ₹2,000 | ₹1,165 |
Per-km running cost for top EVs in Bihar
Based on Bihar's ₹7.5/kWh rate — home charging assumed.
Porsche Porsche Cayenne Electric
From ₹0
Mahindra Mahindra Vision S
From ₹0
Volkswagen Volkswagen ID.4
From ₹0
VinFast VinFast Wild
From ₹0
VinFast VinFast VF9
From ₹0
VinFast VinFast VF8
From ₹0
VinFast VinFast VF5
From ₹0
VinFast VinFast VF3
From ₹0
VinFast VinFast VF e34
From ₹0
VinFast VinFast Limo Green
From ₹0
EV charging cost in Bihar — FAQs
What is the electricity rate for EV charging in Bihar?+
The domestic tariff in Bihar is approximately ₹7.5/kWh (300-500 unit slab, where most EV-owning households land). Lower slab (0-100 units) is ₹4.1/kWh and higher slab (>500 units) is ₹8.6/kWh. After fixed charges and duties, most EV owners in Bihar report an effective rate of ₹8.1-8.6/kWh.
How much does it cost to fully charge an EV in Bihar?+
At ₹7.5/kWh, fully charging a 30 kWh battery in Bihar costs ₹225, and a 50 kWh battery costs ₹375. A popular mid-range EV like the Tata Nexon EV (30 kWh) costs about ₹225 for a full charge at home.
Is public DC fast charging expensive in Bihar?+
Public DC fast chargers in Patna and other Bihar cities typically charge ₹18-22/kWh — roughly 2-3× home rates. Fully charging a 40 kWh EV on public DC costs ₹720-880 vs ₹300 at home. Use home charging for daily needs; public DC only for long-distance trips.
How does EV running cost in Bihar compare to petrol?+
Average EV running cost in Bihar: ₹1.05/km. Petrol running cost (at ₹106/L in Bihar): ₹7.09/km. EVs are approximately 85% cheaper to run here.
Are there any EV subsidies in Bihar?+
Yes — Road tax waiver for first 2 years. Check our /subsidy/bihar page for the latest details.