Eurostar has revised its technical requirements for a new fleet of high-speed trains, mandating that the units remain operational in temperatures up to 55 °C. According to a report by The Telegraph citing Gwendoline Cazenave, this adjustment from the original 45 °C threshold is a direct response to recent extreme heatwaves across France and the United Kingdom.
Climate Adaptation in European Rail Infrastructure
The decision to upgrade the thermal resilience of the upcoming fleet stems from a broader strategy to ensure long-term viability. As Gwendoline Cazenave noted, the company is procuring assets intended to serve for the next three decades, necessitating a proactive approach to climate volatility. While previous standards focused on moderate European climates, the new requirement aligns Eurostar with specifications typically reserved for high-speed rail operations in desert environments, such as those found in Morocco or Saudi Arabia.
This shift carries clear financial implications. Eurostar confirmed that meeting these higher temperature thresholds will increase production costs, though the company has not disclosed the specific monetary impact of these engineering changes.
Project Scope: The SNCF and Alstom Contract
The trains in question are part of a major procurement deal finalized last autumn. The order involves 30 fixed units with an option for 20 additional trainsets, representing a total investment of 1.4 billion euros. The contract was issued by the French state rail operator SNCF, the majority owner of Eurostar. Passengers can expect these advanced, more heat-resistant units to enter service beginning in 2031.
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The upcoming fleet will mark a significant milestone for the operator: it will be the first time Eurostar introduces double-decker trainsets into the Eurotunnel, increasing capacity on key international routes.
Engineering for Extreme Heat
Designing rolling stock for 55 °C presents significant technical hurdles. By mandating these standards now, Eurostar is effectively future-proofing its fleet against the rising frequency of extreme weather events.
Frequently Asked Questions
Why did Eurostar raise its temperature requirement to 55 °C?
The company increased the requirement from 45 °C to 55 °C to ensure the new trains remain operational during the increasingly frequent and intense heatwaves observed in the UK and France.
When will the new trains enter service?
The first of the new trainsets, manufactured by Alstom, are scheduled to begin operations in 2031.
How much will the new fleet cost?
The procurement contract, which includes 30 firm orders and an option for 20 more, is valued at 1.4 billion euros.
Will these trains be different from current models?
Yes, in addition to higher thermal tolerance, the new fleet will feature double-decker carriages, a first for Eurostar services passing through the Eurotunnel.
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