  == Outdated Peak Gas Section ==  Since this section was written (2007 thereabouts), the supply of natural gas in N.America has risen considerably due to improved techniques for extraction. And consequently natural gas prices have fallen drastically.  Also should mention that since 2008, about 40% of new electrical generation capacity in U.S. has been natural gas (and about 40% has been wind power). Check EERE and EIA documents for details.      Another section mentions using Nuclear power instead of wind power, stating it's cheaper. Not so any longer. EIA document says Nuc. is most expensive source (outside of coal with carbon capture technology), mostly due to capitalization costs. Not to mention its problems with tsunamis.   