To continue the theme. I just read this article. Apparently running electricity at 60Hz is 10-15% more efficient. Thats huge. I don't know how much it would cost but its got to be worth it. The government needs to cut 20%(?) of its pollution this would take care of a large chunck of it and it would save you money. The only downside is that it would cause clocks to speed up (except for those on advanced electronics such as computers and videos). A small price to pay in my opinion.