Cleantech company Swedish Stirling has signed an exclusivity agreement with Glencore Operations South Africa’s alloys division, which grants it exclusivity in negotiating the installation of initially up to 25 PWR BLOK 400-F at a 9.9 MW power generation facility at a Glencore smelter, in Lydenburg, South Africa. On completion, the facility will reduce the carbon dioxide emissions from the smelter by more than 80 000 t/y, owing to the reduced need to buy electricity from the national grid, which is mostly powered by coal-fired plants.