It’s not really laundering because the income was legal. It’s more like a game of Russian roulette blackmail to allow a negotiable tax evasion rate.
There are a lot of figures left out of the article, but it sounds like a preemptive bailout to handle a company fully prepared to cause the rolling blackouts that would also damage themselves. Plus those credits can most likely be sold and bought like any other commodity, only a bit less regulated. Given a few years of climate change those credits will be extremely valuable. Then again, I’m just a speculative jerk on the worldwide web with an opinion. I could be wrong.