South Africa’s State power utility and biggest source of air pollution won an appeal to keep five of its oldest plants open even though they are set to flout incoming emission caps. The plants – which account for almost a quarter of Eskom Holdings’ almost 45 GW of coal-fired generation capacity – will be allowed to operate under current emission limits until the end of March 2030, Barbara Creecy, South Africa’s environment minister, ruled. That will exempt them from more stringent restrictions on pollutants, ranging from particulate emissions to sulfur dioxide, that come into effect in 2025.