[tz] Havranek et al. on DST's effect on energy consumption

[Paul Eggert]

A recent meta-analysis of energy savings due to daylight-saving time found a 
mean effect close to zero (the weighted mean of 0.343% was less than the 
estimated standard error). The largest energy savings from DST was found in 
high-latitude countries; areas closer to the equator tended to have negative 
energy savings. Studies published in journals with high impact factors tended to 
be more pessimistic about energy-savings benefits. The study concluded, "the 
effects of daylight saving time on energy consumption are too small to justify 
the biannual time-shifting."

Havranek T, Herman D, Irsova Z. Does daylight saving save energy? a 
meta-analysis. MPRA Paper No. 74518 (2016-10-12). 
https://mpra.ub.uni-muenchen.de/74518/1/MPRA_paper_74518.pdf