Mission 100% Electrification and Net Zero Carbon Railways

Indian Railways has set a target of becoming a "net-zero carbon emitter" by 2030. This means the railways want to reach a point where the greenhouse gases they release, mainly from burning diesel, come down to as close to zero as possible, mainly by replacing diesel trains with electric ones and cutting energy waste.

Why does it exist?

Indian Railways is one of the largest consumers of diesel in the country. Diesel locomotives are costly to run compared to electric ones, since diesel prices are higher and diesel engines waste more energy as heat. Diesel trains also release carbon dioxide and other pollutants directly at the tracks, including in and near cities. Switching to electric traction, powered increasingly by renewable energy, is meant to cut both costs and pollution at the same time.

Where did it come from?

Indian Railways announced its target of becoming a net-zero carbon emitter by 2030 in July 2020. To reach this, it launched "Mission 100% Electrification," aiming to convert almost its entire broad-gauge network from diesel to electric traction. Railway electrification itself is much older in India: the first electric train ran on 3 February 1925, between Bombay VT (now Chhatrapati Shivaji Maharaj Terminus) and Kurla, using 1,500 Volts DC. India later standardised on 25 kilovolt (kV) Alternating Current (AC) traction from 1957, with the first 25 kV AC section opened around 1960, and the Central Organisation for Railway Electrification (CORE) was set up in Allahabad in 1979 to plan and execute electrification work across the network.

How does electrification work, and why is it more efficient?

An electric locomotive draws power directly from overhead wires through a pantograph (a spring-loaded frame on the roof of the engine that touches the wire) and uses that electricity to turn its wheels. A diesel locomotive, by comparison, burns diesel in an engine to generate power, and a lot of that energy is lost as heat rather than converted into motion.

Electric locomotives convert a much larger share of their input energy into actual movement than diesel locomotives do, which is a major reason electrification saves both fuel cost and emissions per train-kilometre run.

The key parts and facts

As of 31 May 2026, Indian Railways had electrified 70,002 route kilometres out of a total broad-gauge network of 70,271 route kilometres, or about 99.6%, leaving only around 269 route kilometres unelectrified, mostly in difficult terrain across a few states. This is a sharp jump from 2014, when only about 20% of the broad-gauge network was electrified; between 2014 and 2026, Indian Railways electrified roughly 48,000 route kilometres, more than double what had been electrified in the previous six decades combined.

In 2024-25 alone, this shift is estimated to have saved around 180 crore litres of diesel, worth close to ₹6,000 crore. Indian Railways had also commissioned more than 1,260 megawatts of renewable energy capacity by mid-2026, made up of about 1,161 MW of solar power and 103 MW of wind power, to supply cleaner electricity to its own network.

India's position and Indian examples

With 99.6% of its broad-gauge network electrified, Indian Railways has become one of the most electrified large railway systems in the world, ranked just behind Switzerland. The remaining unelectrified stretches are mostly in remote or hilly regions where construction is harder, and these are where technologies like the new LNG dual-fuel train are being tried as a bridge, cutting diesel use on routes that are not yet, or may never be, fully electrified.

Commonly confused concepts

• Electrification vs dieselisation with cleaner fuel: Electrification replaces diesel engines entirely with electric ones powered by overhead wires; a dual-fuel or CNG/LNG conversion still keeps a combustion engine but blends in a cleaner-burning fuel alongside diesel. Electrification cuts emissions at the point of use to nearly zero (depending on the electricity source), while dual-fuel technology only reduces, not eliminates, diesel-related emissions.
• Net zero vs zero emissions: "Net zero" means any remaining emissions are balanced out (for example, by using more renewable power elsewhere or other offsetting actions), not that literally no emissions occur at all; "zero emissions" more strictly means no emissions are produced in the first place.
• Broad gauge vs other gauges: Broad gauge (1,676 mm track width) carries the vast majority of Indian Railways' traffic and is the network being referred to when electrification percentages like 99.6% are quoted; India also has smaller metre-gauge and narrow-gauge stretches, mostly heritage or hill lines, which are separate from this figure.

Issues, criticism and the way forward

Critics point out that even after full electrification, the network's environmental benefit depends heavily on how "clean" the electricity itself is, since much of India's grid still draws on coal-based power, so railway electrification alone does not guarantee net-zero emissions unless paired with more renewable power generation. There are also concerns about maintaining reliable power supply in remote or disaster-prone sections, and the high upfront cost of laying overhead electric infrastructure in difficult terrain, which is why the last stretches are taking longer to complete.

The government's stated way forward includes finishing the remaining route kilometres, expanding Indian Railways' own renewable energy capacity (solar and wind), and using targeted technologies like LNG dual-fuel trains for operations, such as shunting or short branch lines, where full electrification is not yet economical.

Concepts to Know

• Pantograph: The spring-loaded metal frame on top of an electric locomotive that touches the overhead wire to draw electric power for the train.
• Route kilometre: A measure of railway track length that counts the actual distance a train travels along a route, as opposed to "track kilometre," which also counts multiple parallel tracks on the same route separately.
• Traction: In railways, this refers to the method used to pull or power a train, such as diesel traction, electric traction or steam traction (now retired in regular service).
• Renewable energy capacity: The maximum amount of electricity that can be generated from renewable sources like solar or wind power plants, usually measured in megawatts (MW).