Good for Iowa. We should be building more plants that use coal mined in the US. We should not be building gas turbine plants that use natural gas that is better used for home heating and chemical feedstock purposes than for electrical generation.
They? are building one of those in my area and I concur that it is NOT the best way to use natural gas.
COAL is a natural since it does burn dirtier and is best treated at a central plant.
It seems that an analysis of overall energy effiency would prove this.