Why in news?
Indian Railways unveiled the country’s first removable solar panel system in August 2025. The pilot installation in Banaras Locomotive Works, Varanasi uses the space between railway tracks to generate clean energy.
What is it?
- A 70‑metre‑long array consisting of 28 solar panels installed between railway lines.
- The panels produce about 15 kW of peak power, enough to meet auxiliary energy needs at the facility.
Why install panels between tracks?
Rail corridors often occupy large tracts of land that remain unused except for ballast. Placing solar panels in these spaces allows Railways to harness renewable energy without acquiring new land. The removable design ensures that the panels can be lifted quickly for maintenance or emergencies.
Key features
- Compact footprint: No separate land acquisition is required, making it suitable for congested urban areas.
- Removability: Panels can be taken off the tracks for servicing or to allow heavy vehicles to pass.
- Pilot project: If successful, the model can be replicated across India’s rail network to reduce diesel use and carbon emissions.
Significance
- Environmental benefit: Generates clean electricity and reduces greenhouse gas emissions from diesel‑powered auxiliary systems.
- Cost savings: Cuts operational expenses by using free solar energy for station lighting, signalling and other needs.
- Innovative use of space: Demonstrates how existing infrastructure can be repurposed to meet energy goals.