The highest proportion of solar thermal energy storage in China!
The highest proportion of solar thermal energy storage in China! CGN Delingha 800000 kW photovoltaic partial full capacity grid connection.
On December 13th, the 800000 kW photovoltaic power generation part of the CGN Delingha 1 million kW solar thermal storage integrated project, which has the highest proportion of solar thermal energy storage and multi energy complementary projects in China, was fully connected to the grid for power generation.
Project Overview
The project is located in the Photovoltaic (Solar Thermal) Industrial Park of Delingha City, Haixi Prefecture, Qinghai Province. It adopts the technology of combining photovoltaic power generation with solar thermal molten salt energy storage, with a total installed capacity of 1 million kilowatts and a high energy storage ratio of 25%. It is the most under construction solar thermal energy storage multi energy complementary project in China. The 800000 kilowatt photovoltaic power generation part of this grid connected power generation adopts the overall design scheme of "block based power generation and centralized grid connection", and is connected to the power grid through the construction of a new 330 kV booster station; In addition, it is equipped with a 200000 kilowatt solar thermal energy storage power generation section, making it the largest single tower solar thermal project in China.
As the largest new energy demonstration project in Qinghai Province that uses thermal storage solar thermal power stations as peak shaving power sources, this project can store energy for up to 6 hours and play a significant role in peak shaving and frequency regulation in the power system. The heat absorption tower and main plant of the 200000 kW tower solar thermal section of the project have been successfully topped out at the end of October, and the installation progress of the solar mirror has exceeded 50%.
This project has good technical safety, ecological adaptability, grid friendliness, and technological demonstration, which is of great significance for optimizing the regional power structure and promoting local economic and social construction. After completion and operation, it is expected that the annual grid connected electricity will reach 1.8 billion kilowatt hours.