Well… the emissions happen so long as someone else wants to buy fossil power, but you can hardly blame the DC company for some other company wanting to buy foss

Well… the emissions happen so long as someone else wants to buy fossil power, but you can hardly blame the DC company for some other company wanting to buy fossil power. In the case where I came across it, the problem was contractual. Only one vendor could supply power to that site. So by applying that hack, ① new renewable energy generation was built ② a conventional power plant lost a contract with Otherco and ③ another conventional plant gained a contract of the same size. After a while the contractual problem was solved. IMO it doens't make sense to choose site based on something as flimsy as a contract. Contracts are changeable on a timescale of months or years, buildings last longer.