The 334 MW High Efficiency Combined Heat and Power (CHP) Plant, or Cogeneration Plant, is located in the south section of the complex. Entering in operation in 2008, it is an innovative investment for Greece, as well as for the broader region of SE Europe. It operates using natural gas and produces heat, used in the alumina production process, as well as electricity, which can be injected into the national grid. At the same time, its operation helps significantly reduce the use of fuel oil in the plant and, consequently, to improve the plant’s environmental performance.