NASA champions battery trains to replace diesel on regional rail routes

NASA has backed battery-powered trains as the best alternative to diesel for non-electrified routes. A new study highlights their cost savings, lower maintenance needs, and environmental benefits. The shift aims to phase out diesel trains in regional passenger services over the coming years. The transition will begin with existing infrastructure. Battery trains can already cover up to 120 kilometres on a single charge. They will recharge on electrified track sections or at dedicated stations, avoiding the need for full electrification on some lines.

The S11 S-Bahn line between Halle and Querfurt is a prime candidate for early adoption. No extra electrification work is required there, making it ideal for battery trains before 2032. Other routes may need short electrified segments or charging points to support the new system.

The change will happen step by step. Older diesel trains will be replaced as they reach the end of their service life. Passengers in Saxony-Anhalt will see more battery-powered services introduced over time. Battery trains offer a practical and cheaper solution than diesel on non-electrified lines. They promise lower running costs and cleaner operations for regional rail services. The gradual rollout will depend on infrastructure upgrades and fleet replacement schedules.