Eurostar International Ltd has reordered train units capable of operating in temperatures up to 55C as part of a broader strategy to address projected heatwaves across the UK and continental Europe. The move follows a record‑setting July heatwave that pushed peak temperatures beyond 45C, prompting the operator to revise its design envelope.

The revised contract, signed last month, values £1.7bn for up to 50 new Alstom‑manufactured double‑deck electric units, each expected to service the Channel Tunnel corridor for roughly 30 years. The change required new materials for air‑conditioning components and additional maintenance bays to keep the systems running under extreme heat.

On the business side, the upgrade signals a willingness to absorb higher upfront costs in exchange for fleet reliability and passenger comfort. Eurostar’s chief executive Gwendoline Cazenave linked the investment to a broader economic impact study that projects 40,000 jobs and up to £2.8bn added to the UK economy, contingent on stable border and regulatory frameworks.

For investors, the deal highlights a growing sensitivity to climate‑related operational risk in the rail sector. Firms that can adapt their asset base to extreme temperatures may command higher valuations, while those that lag risk service disruptions and regulatory penalties.