The Sheppard plant is a huge addition for Natural gas at 800MW, and Geneese will add another 1080MW.
http://www.capitalpower.com/generati...es/G4and5.aspx
I wonder if smaller scale ones would work near communities that have gas nearby, instead of building transmission lines with large power loss. Not sure on the economies of scale for small plants. I agree though, we should be building these.
Also, a good summary here:
http://www.energy.alberta.ca/electricity/682.asp
looks like some new small scale plants have come online as well.