Switching to natural gas is not necessarily predicated on natural gas being particularly cheap ... when there are CO2 emission limits, the higher share of BTU's generated by the hydrogen content of the methane means lower carbon fee costs.

It would be interesting to break down the new gas generation capacity between the less efficient, but lower capital cost, turbine peaker plants and the more efficient combined cycle plants.

I've been accused of being a Marxist, yet while Harpo's my favourite, it's Groucho I'm always quoting. Odd, that.