Founded in 2013, Shenzhen Poweroak Technology Co. Ltd. has been focused on continuous R&D and innovation of distributed energy storage product and technology of micro-grid. We applied patents on the international advanced battery storage technology for new energy and provide the total scheme for application of energy storage battery each year.
Besides, Poweroak is the global leader in the Integration of Solar Photovoltaic Generation with Battery Storage, the On/Off-Grid Bidirectional Inverters, the Intelligent Energy Management System Based on Internet, and etc.
We serve customers with our complete sets of Project Design, R & D, Manufacture, Sales and After-sales of the Residential / Commercial photovoltaic energy storage system, and the Portable energy storage or the DC energy storage schemes. As our products have been sold in more than 70 countries around the world and as our branches have been functioned already in major global markets such as Japan, the United States, Australia, Germany, Nigeria, and so on., we have improved ourselves into one of the main manufacturers in the energy storage industry.

Unisun Energy Group is dedicated to the development and construction of and investment in distributed clean energy power generation, operation and maintenance management, and research and development of smart energy technologies. The Group owns three brands: Unisun Power, Uper Energy and Optim Energy Technology. It runs more than 2,000 clean energy projects and provides O&M services for such projects with nearly 5 GW of generation capacity. The Group is the first clean energy power station operator in China that focuses on distributed clean energy power generation and has entered a stage of fast development.