Archive · 24 Jul 2025
Solar Hours, ToD Tariffs Critical for Decarbonizing EV Charging
Imagine electric cars like big batteries that need to charge.
To help make this cleaner, India is trying to use solar power for these cars.
They are using special prices called ToD tariffs, offering cheaper electricity during the day when the sun shines.
Some places also offer 'green tariffs' using renewable sources.
However, most people charge their cars at night, which might be more expensive.
To solve this, they need to find out when and how people charge their cars to make sure everyone can charge their cars affordably with clean energy.
Think tank Ember emphasizes scaling up clean energy charging infrastructure for EVs.
Time-of-day (ToD) tariffs incentivize EV charging during solar hours with rebates.
Most EV charging currently happens during evenings and nights, primarily at home.
Green tariffs offer a pathway for EV charging through renewable energy sources.
Data collection on charging patterns is crucial for effective tariff implementation.
- Who
- Ember, a think tank
- What
- Re-calibrating ToD tariffs and utilizing solar-hours is critical for decarbonising EV charging.
- When
- Published on July 24, 2025
- Where
- India
- Why
- To promote affordable and green EV charging.
Limited Visibility of Charging Patterns
Promoting Affordable Green Charging
Data Availability
Limited Visibility of Charging Patterns
Current home charging limits discoms' data collection for demand forecasting and tariff operations.
Promoting Affordable Green Charging
More data is needed for effective tariff implementation.
Green Tariff Uptake
Limited Visibility of Charging Patterns
Current green tariffs are only available for certain consumers. This may deter EV users due to premium charges.
Promoting Affordable Green Charging
Green tariff may be too expensive
- Think Tank
- Ember
- ToD Tariff Purpose
- Incentivize charging during solar hours
- Green Tariff Users
- Consumers with >100kW connected load
- Current Charging Trend
- Primarily at home during evenings/nights
- PCS installed
- Around 26,367