The China Renewable Energy Engineering Institute (CREEI) dates back to 1950. Over the years, it has been the only institution dedicated to the management of hydro, wind and solar power technologies in China.

CREEI provides integrated technological support and services for renewable energy policy, resources survey and planning, industrial planning, design review, project acceptance, quality supervision, standards making, information management and international cooperation.

CREEI oversees the operations of the National Research Center for Hydro and Wind Power, National R&D Center for Hydropower Technologies, Station for Renewable Energy Cost, General Station for Hydropower Project Quality Supervision, General Station for Renewable Energy Project Quality Supervision and National Center for Renewable Energy Information. It is one of the first research and advisory bodies established by the National Energy Administration.