Connecticut Proposes Replacing Electric Trains with Diesel to Save $9 Million

The state's transportation department says the switch would not impact service levels or fares.

Published on Feb. 19, 2026

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Connecticut's Department of Transportation is proposing to replace the electric trains on the Shore Line East route between New Haven and New London with diesel engines, a move that could save the state close to $9 million. The reasoning is purely financial, as the DOT says it already has the diesel equipment in its inventory and running diesel trains costs significantly less than maintaining the electric fleet.

Why it matters

This reversal would undo an earlier environmental initiative to switch to all-electric trains on the route, which carries more than 225,000 passengers annually. While electric trains offer more amenities and zero emissions, diesel trains are cheaper to operate, leading the state to prioritize cost savings over environmental benefits.

The details

Under the proposal, one M-8 electric train would remain in use between New London and Stamford, while the rest would be relegated to reserve use. The DOT says that if the switch happens, there would be no change to current service levels, fares, or routes, so from a passenger perspective, the experience might be similar—just with different engines under the hood.

  • The Shore Line East route recently switched to all-electric M-8 trains not long ago.
  • The Connecticut Department of Transportation is currently proposing the switch to diesel trains.

The players

Connecticut Department of Transportation

The state agency responsible for transportation infrastructure and services, including the Shore Line East rail route.

Alex Morocho

A longtime train enthusiast who lives near the tracks in New London and has watched the evolution of the Shore Line East route with a mix of amusement and skepticism.

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What they’re saying

“At first, they wanted to save the environment. Go green. Go electric. No diesel fumes. Now, here we are a few years later, and they have to save money.”

— Alex Morocho, Train enthusiast (WFSB)

“They didn't really think this through thoroughly. It's pretty funny in my opinion.”

— Alex Morocho, Train enthusiast (WFSB)

What’s next

The Connecticut Department of Transportation will need to decide whether to move forward with the proposal to replace the electric trains on the Shore Line East route with diesel engines.

The takeaway

This case highlights the tension between environmental sustainability and cost-saving measures in transportation infrastructure. While the initial switch to electric trains was seen as progress, the state is now prioritizing financial considerations over environmental impact, raising questions about the long-term commitment to green initiatives.