The renewal of technology group Wärtsilä’s operations and maintenance (O&M) agreement with QIT Madagascar Minerals (QMM), which is part of the Rio Tinto group, has been expanded to include a decarbonisation agreement. Wärtsilä says the agreement is a groundbreaking offering in the energy sector and allows for optimising all of the assets in the microgrid, including renewable-energy use, thereby not only reducing emissions but also producing notable cost savings.