At 18:25 on May 28, 2025, the Jinta ZhongGuang Solar “CSP + PV” Pilot Project 100MW CSP Project, developed by Cosin Solar, was successfully connected to the grid.

This project is part of China’s second batch of large-scale wind and solar power base projects focused on desert, Gobi, and barren land. Located in the Baishuiquan Photovoltaic Industrial Park of Jinta County, Jiuquan City, it has a total installed capacity of 700MW and adopts a "CSP+" hybrid configuration—600MW of PV and 100MW of CT CSP, equipped with a 9-hour molten salt thermal energy storage system. Once fully operational, the project is expected to deliver approximately 1450GWh of clean electricity annually to the grid, saving about 480,000 tons of standard coal and reducing 1,360,000 tons of CO₂ emissions each year. It holds significant importance for promoting local socio-economic development, energy conservation, and emissions reduction. 

The project adopts a complementary power generation technology combining CSP and PV, achieving efficient coordination and deep integration between different energy sources. Leveraging its stable output, flexible adjustability, and grid-friendly advantages, the CSP can proactively shut down or reduce load during peak PV generation periods, thereby freeing up capacity for solar PV power. Conversely, during morning/evening peak demand or insufficient PV output, it can rapidly ramp up to full-load operation, providing critical peak-shaving support to the grid and significantly improving overall energy utilization efficiency. The implementation of this project will optimize the energy structure in Gansu region while substantially enhancing grid stability and renewable energy accommodation capacity. 

The project uses solar thermal tower technology fully developed by Cosin Solar, achieving innovative optimization in Concentrated Solar Collector System and Molten Salt TESS&SGS System. With a solar field covering approximately 770,000 square meters, the project utilizes Cosin Solar's proprietary high-precision smart heliostats and solar field control system, which effectively addresses the challenges of long-distance high-accuracy heliostat tracking and large-scale solar field control while significantly enhancing the plant's intelligent operation level.

This project marks the first application of Cosin Solar's patented low-position molten salt tank + short-shaft pump solution, increasing usable molten salt ratio from 85% to 90.3% while substantially reducing the design and manufacturing complexity of cold salt pumps. The technology notably improves operational reliability and maintenance accessibility of molten salt pumps, and has obtained patent authorizations in China and multiple countries worldwide. Additionally, the project's 20MW medium-high voltage molten salt electric heater can fully absorb curtailed PV power, enabling bidirectional and rapid peak-shaving functionality. 

Currently, multiple "CSP+" mega-base projects involving Cosin Solar in Xinjiang, Qinghai, and Gansu have successively achieved grid-connected operation, fully demonstrating the company's leadership in concentrated solar power. Moving forward, Cosin Solar will leverage its outstanding product delivery and project execution capabilities to make all-out efforts in commissioning the under-construction CSP mega-base projects. Looking ahead, the company will steadfastly implement China's "Dual Carbon" strategy, continuously focus on technological advancement and cost optimization of tower CSP, and contribute more of Cosin Solar's expertise and solutions to advance the clean and low-carbon energy transition.