Hanas New Energy Group (Hanas) is investing approximately US$346 million into the production of an integrated solar combined cycle (ISCC) trough solar power plant in Gaoshawo town, Ningxia, China. The construction, in collaboration with North China Power Engineering and Siemans, started on October 12, 2011 and is due to be operational in October 2013, with a capacity of 92.5MW.
The project integrates trough solar thermal generators with gas turbine generators to create the trough ISCC system, which enhances the energy utilization efficiency by increasing the thermal efficiency by 70% to 80%, by fully using solar energy as the source of low and medium temperature heating and high temperature flue gas generated by natural gas power generation as the source of high temperature heating.
In particular, the project's system output changes are consistent with grid peaks and dips and are closer to the traditional thermal power generation, allowing for easier grid connection and management. The system is operated at a load of between 30% and 100% everyday, reducing frequent interrupts and extending the lifetime of units through adjusting the output value.
“The kick-off of the Hanas project marks the autonomous region which is marching forward to the new solar power technology,” the National Energy Administration said in a letter of congratulations. “The project will serve as an important model for the design, construction, operation and management of solar thermal power projects in China and position itself as a solar thermal power demonstration project with sophisticated technology and good economy.”