No, not if they expressly are finding a renewable source of electricity. Say they have enough rooftop space to install solar panels to cover their needs (don't nitpick that; just say it is true).

Yes, this company could have bought the solar panels and then sold their electricity on the market, perhaps displacing some conventional energy source, but that isn't their business.

Their business is this crypto market for carbon credits; they have a need for power, they fill that need with a renewable source.