Zimbabwe’s Rio Energy Ltd., a unit of RioZim Ltd., will build a 2,100 megawatt thermal power plant with China Gezhouba Group Corp in northern Zimbabwe at a projected cost of $3 billion, Rio Energy said Monday. “CGGC will develop the project and assist with the fund raising,” Caleb Dengu, chairman of Rio Energy Ltd said last week. The power plant at Sengwa will be constructed in four phases of about 700 megawatts each, bringing total capacity to 2,800 megawatts. “We have coal reserves to support a 10,000 megawatt plant at Sengwa,” Dengu said. A 250 kilometer (155-mile) pipeline will carry water from Lake Kariba to Sengwa. The pipeline, and a 420 kilovolt-ampere power line, will be built by PowerChina, said Dengu. The first phase of the project will cost about $1.2 billion, he added.