SNCF and Alstom Present a Battery-Powered Regional Train
- Published on 27/10/2023 20:55
- Modified on 27/09/2025 7:36
The SNCF and Alstom have been working on a battery train project since 2021 to reduce CO2 emissions from non-electrified lines.
Retrofitting train sets exists. The idea is always to keep the chassis and body, replacing the original mechanics with a more technologically advanced one. Thus, the SNCF and Alstom have embarked on modifying five diesel-electric hybrid train sets to transform them into 100% electric units.
These train sets, introduced in the early 2000s (almost 20 years ago), will swap their diesel engines for lithium batteries. The CO2 emission reduction is estimated at 85% compared to diesel. However, the range plan is limited to 80 kilometers, so it’s not yet a reason to celebrate.
This highly complex operation – requiring compliance with the specifications of the existing train (weight and volume, modification of old software…) – is a first in Europe. The first train set, intended for the Nouvelle-Aquitaine Region, has begun dynamic testing.
The main interest of this solution is to avoid very costly infrastructure investments for line electrification via catenaries. Only a few existing sections will allow the train sets to recharge quickly using their pantographs.
Certifications now need to validate tests up to 160 km/h, then with two coupled train sets. Commercial operation is not expected before December 2024 at the earliest. But the idea is commendable.
This page is translated from the original post "SNCF et Alstom présente un train régional à batterie" in French.
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