A newly developed control system will strengthen Hydro Årdal's position as a producer of low-carbon aluminium and supports Hydro's long term ambitions for the plant. The newly developed control system, HAL5000, will be installed on the electrolysis line Å2C in Årdal. The first cells are available along with the new control system in 2023.The HAL5000 pot control system is developed by the technology community in Årdal and provides more efficient control of aluminium production. Together with upgrading equipment on the electrolysis cells, the technology contributes to increased production, reduced electricity consumption and lower CO2 emissions. The savings will be approximately NOK 6 million annually.The pot control system will be installed in one of two electrolysis lines in Årdal and work begins in 2022. The first cells are available along with the new control system during 2023, and are a pilot for other Hydro aluminium plants.Hydro has invested significantly in the Norwegian aluminium plants in recent years. Since 2017, Hydro has invested over NOK 700 million in Årdal, in addition to the new pot control system.