energy department

Plus: the godfather of the plug-in hybrid; Energy Department's clean-energy guru moves on; Indian VCs look at clean tech; questions for T. Boone Pickens.

AP - House Republicans on Thursday scuttled a bill t

Senator John Warner of Virginia has asked the Energy Department to look into setting a national speed limit that would best optimize the nation’s gasoline use.

A 55 mph limit could save 167,000 barrels of oil each day.

In 1974, Congress mandated a 55 mph speed limit in part to combat the Arab oil embargo, so there is precedent for this kind of regulation.

But is it a good idea? Are we at a point where we need to force Americans to conserve gas use? Discuss.

The Energy Department releases its latest survey of gasoline prices Monday afternoon. The costs of gasoline and crude oil have set records in the past few weeks.

Even if oil prices decline, drivers may not see an immediate savings.

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Reuters - Two Russian weapons-grade plutonium production reactors are ahead of schedule for shutting down and will stop operating before this December's deadline, the U.S.

Energy Department said on Friday.