Sustainable Energy Solutions Sweden Holding AB (publ)(SENS), provides sustainable energy solutions enabling the transition to a fossil-free and CO2 neutral energy mix both locally and internationally. SENS develops, designs, constructs and sells large-scale energy projects combining renewable energy sources with next generation energy storage technologies such as underground pumped hydro storage (UPHS) and/or battery energy storage systems (BESS). The company also conducts technical advisory consultancy services within energy storage and energy systems optimisation. The company is listed on NGM Nordic SME under the short name SENS. In 2021, the company acquired Pumped Hydro Storage Sweden AB.