Electric vehicles remove tailpipe emissions, but the electricity they use still has a carbon footprint unless it comes from renewable sources. Charging operators and site owners have several ways to make charging greener.
1. On-site solar
Solar panels on roofs or charging canopies supply clean energy directly. It works best where charging happens in daylight, at workplaces, malls and fleet depots with daytime charging. See pairing chargers with solar and storage.
2. Green tariffs from the DISCOM
Some distribution companies offer green tariffs, where consumers pay a premium for electricity backed by renewable sources. Availability and terms vary by state.
3. Green energy open access
India's Green Energy Open Access Rules allow eligible consumers to buy renewable power from generators through the grid. Thresholds, charges and procedures depend on the state and the size of the connection.
4. Power purchase agreements
Larger operators can sign long-term agreements with solar or wind developers, often for an off-site project, to supply a share of their energy.
5. Renewable energy certificates
Certificates represent renewable energy generated elsewhere. They can support renewable claims, but on-site or directly contracted supply is usually viewed as stronger evidence.
| Option | Best for |
|---|---|
| On-site solar | Daytime charging sites with roof or canopy space |
| Green tariff | Simple switch, where offered |
| Open access | Larger sites and multi-site operators |
| PPA | Large operators with long-term demand |
| Certificates | Covering the remaining gap |
Match claims to evidence. Say "powered by on-site solar during the day" or "backed by renewable energy certificates" rather than a general "100% green" without proof.
How PxT can help
PxT Energies designs solar-integrated charging sites and can help you assess renewable sourcing options for your network.