But as reported here in January, two ARE researchers, doctoral students Ryan Kellogg and Hendrik Wolff, found that a similar switch in Australia didn't meet the mark. Now that the the bleary-eyed mornings and brighter evenings are upon us, their work is getting a lot more attention:
Daylight Savings Might Not Save Energy (Video - ABC News)
Does daylight-saving time really save energy? (ScienceBlogs)
Daylight Savings Time: Energy Dud? (Discovery Channel News)
Economists find no difference in electricity usage when Australia moved time change back (Contra Costa Times)