Merus Power Oyj engages in the design, manufacture, and sale of battery energy storage systems and power quality solutions in Finland and internationally. The company offers lithium-ion-based battery energy storage systems under Merus ESS brand name. Its power quality solutions include Merus A2, an active harmonic filtering solution; Merus 4DRIVES, an optimized active harmonic filter for variable frequency drives; Merus HPQ, an all-in-one power quality system for combined active harmonic mitigation and power factor correction; Merus STATCOM, a modular and modern static synchronous compensator for demanding applications and heavy industrial loads; and Merus SVC, a static var compensator solution for higher-power-class applications. In addition, the company is involved in the provision of power quality studies and analyses, installation and commissioning, spare parts, and training and support activities. Its solutions are used in crushers, electric arc and ladle furnaces, elevators, EV charging stations, HVAC systems, industrial cranes, lighting, paper machine and printing, variable frequency drives, and welding applications. The company offers its solutions for industries, including automotive, chemical, food and beverage, glass, maritime, metallurgical, mining, oil and gas, paper and pulp, pharmaceutical, plastics, semiconductor, and textile; commercial buildings comprising airports, casinos, data centers, distribution centers, greenhouses, high buildings, hospitals, hotels, office buildings, and shopping centers; and renewables, such as hydro, solar, and wind power, as well as distribution system operators and water and wastewater treatment sectors. Merus Power Oyj was incorporated in 2008 and is based in Ylöjärvi, Finland.