The Effect Of Daylight Savings Time On Energy Usage
New research challenges the traditional view that daylight savings time results in less electricity consumption.
New research conducted by economist Matthew Kotchen found that electricity usage in certain counties of Indiana actually went up after they adopted daylight saving time. This is contrary to the belief that shifting the clock ahead reduces electricity consumption.
PhysOrg has more on the research:
The result of the study showed that electricity use went up in the counties adopting daylight saving time in 2006, costing $8.6 million more in household electricity bills. The conclusion reached by Kotchen and Grant was that while the lighting costs were reduced in the afternoons by daylight saving, the greater heating costs in the mornings, and more use of air-conditioners on hot afternoons more than offset these savings. Kotchen said the results were more “clear and unambiguous” than results in any other paper he had presented.