I wasn't very clear. If natgas proponents want to replace nukes, they can't do it by rolling out just peaker plants. They need plant that can do baseload.

Is there a significant difference in capital costs between gasfired baseload and gasfired peaker? How much of the increase in gasfired that we see above is peaker?

In other words, how capable is natgas of replacing nuclear, and at what capital cost? And what are (more detailed) current trends in gasfired construction?