RE the intersection of energy generation and tax incentives: one of the biggest beneficiaries of "clean coal" tax incentives is the Arthur J. Gallagher corporation, which most people know (if they know them at all) as an insurance broker. Gallagher makes beaucoup $ w/ clean coal.

In 2019, Gallagher reported $388 million of US pretax income, on which it reported $3.8M of current federal income tax. A cool 1% federal tax rate, which is actually an uptick from the precisely 0% rate the company reported on a similar amount of income the year before.

The biggest apparent factor explaining this insurance company's low tax rate in both years: tax credits for alternative energy, which *could* (it's hard to tell from 10-K) be responsible for every last dime of Gallagher federal income tax avoidance on >$700M in past two years.

Revenue from "clean coal activities" accounts for about 20% of the company's net rev. Gallagher has invested in dozens of clean-coal-generating plants. As @rff and others have noted, clean coal tax credits appear to *increase* pollution by keeping inefficient plants open longer.