The Daily Brief How the Indian Railways became electrified
Jan 22, 2026
Discover how Indian Railways transformed through electrification, improving efficiency with electric traction. Learn about the challenges of retrofitting in tough terrains and the ambitious push between 2014-2023 that electrified over 30,000 km. Explore the benefits for freight capabilities, costs, and the integration of renewable energy sources. Additionally, gain insights into Reliance's financial performance, Jio's subscriber surge, and the evolving landscape of its diverse businesses.
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Why Electrification Was Worth It
- Electrification wins on thermodynamic efficiency and regenerative braking versus diesel and steam.
- Centralized power plants and electric motors convert energy far more efficiently, lowering overall energy use.
The Traction Network Behind Trains
- Electrification needs a separate traction network of overhead wires and substations tied into the grid.
- Traction substations step grid voltage down to 25 kV AC and isolate segments on faults to protect equipment.
A Herculean Mountain Electrification
- The Sakleshpur-Subramanya section required wiring 57 tunnels and 226 bridges across 55 km through landslide-prone terrain.
- With no roads, every piece of equipment had to arrive by rail and the job took two years to finish.