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remarkable 90%+ efficiency

Well, they have it easy: they don't have to change power output much and fast.

trigeneration for rail

Depends on what you consider cogeneration. All passenger diesels also generate the train heating resp. the electricity to run the air conditioners that cool. But heating utilising the diesel motor's heat itself - no. As for why not, I can think of a few reasons: on a moving train, you'll have maintenance issues, as well as weight. (Older trains had steam heating, powered by a boiler on the locomotive; but it was better to switch to supplying electricity.)

*Lunatic*, n.
One whose delusions are out of fashion.

by DoDo on Sat Jul 4th, 2009 at 01:14:45 PM EST
[ Parent ]
That is true - it takes 10 minutes for the power generating plants to get up to speed. But in load balancing on power networks that is sufficient.

You can't be me, I'm taken
by Sven Triloqvist on Sat Jul 4th, 2009 at 01:40:42 PM EST
[ Parent ]


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