On April 20, Shenyang Rundian Thermal Power Co., Ltd. held the commencement ceremony of Phase I Project of Supporting Heat Supply Pipeline for Shenhai Relocation Project in Huitian Environment-friendly Heat Source Factory in Dadong District, Shenyang City. The Project selected the directly buried insulation pipe with the largest diameter of 1.6 meters in China as the main heat supply pipeline, with a trench length of 16.5 kilometers. The newly built and reconstructed primary network trench is 7.8 kilometers long, and two pressure-isolated heat exchange stations of 1000MW and 200MW are built. After completion, it will ensure clean heating of local people for about 30 million square meters in Shenyang City.