Acrel Co., Ltd., together with its subsidiaries, engages in the research, development, production, sale, and service of enterprise microgrid products and systems in China and internationally. It offers smart gateway; renewable energy systems; towers/base stations; and power monitoring and protection, including protection relays for medium voltage applications, real-time temperature measuring device, smart temperature and humidity controller, programmable meter, remote terminal unit, data center monitor device, smart motor protector, and residual current relay. The company also provides energy management systems, such as din rail energy, DC and AC multifunction, wireless energy, multi-channels, and prepayment energy meters; active power filter and static var generator; medical and industrial IT isolated power systems, as well as DC insulation monitor; power sensor comprising hall sensor, current transformer, UL split-core current transformer, AC current sensor, analog signal isolator, and power transducer; system software; and battery monitoring. In addition, it offers charging pile energy management system; energy consumption monitoring solution for base station; wireless temperature monitoring system; precision distribution monitoring solution for IDC; smart motor control and protection; power monitoring system; cloud platform for power IoT; smart busway monitoring; prepayment cloud platform; operation and maintenance cloud platform for substations; energy management system; energy efficiency management system; medical isolation power supply system; photovoltaic system; smart lighting control system; split core current transformer; hall sensor; prepaid; WHD temperature and humidity controller; and residual current operated relay solutions. The company was incorporated in 2003 and is headquartered in Shanghai, China.