The proposed rule would apply to coal-fired power plants set to begin construction more than twelve months in the future.
Texas has six such plants on the drawing board, more than any other state in the country. Scott Segal is a partner with the law firm of Bracewell & Giuliani.
"If you lay this rule on top of the many rules that apply to existing coal-fired power plants, it has the net effect of increasing the price of energy by double digits in some areas."
Jen Powis is with the Sierra Club's Beyond Coal Campaign. Powis is skeptical the six Texas coal plants will be built — and not just because of the proposed carbon rule.
"Going forward, you're not seeing new, large coal plants — or any facility, really — being built in Texas, because those facilities can't make any money."
Powis says that for about 10 months of the year, Texas only uses about half the generating capacity of its existing power plants.