成都大陆希望集团有限公司

Against the backdrop of deepening energy transition, large-capacity, long-duration energy storage has become a core pillar in developing new-type power systems. A landmark milestone has recently been achieved in the industry: the national pilot demonstration project of salt-cavern compressed air energy storage (CAES) in Jintan, Jiangsu Province, has maintained stable grid-connected operation for more than 1,500 days.

This project is the world's first non-combustion salt-cavern CAES power station, and the only domestically operated salt-cavern CAES project that has realized long-term commercial stable operation. With a forward-planned capacity of 1,000 MW, the project offers a highly valuable practical benchmark for the large-scale, industrial implementation of compressed air energy storage in China. [Excerpted from: China's First Salt-Cavern Compressed Air Energy Storage Demonstration Project Operates Stably for Over 1,500 Days; First Batch of PV-ESS Projects at Datang Lingao Jinpai Port Zero-Carbon Park Connected to Grid]

Benchmark Energy Storage Project Fully Supported by Hope Slanvert

Unlike conventional combustion-type CAES technologies, non-combustion compressed air energy storage eliminates fossil fuel consumption and relies on natural underground salt caverns for air storage. It boasts prominent strengths including large energy storage capacity, long operational life, low-carbon and pollution-free operation, and recyclable resource utilization, rendering it a highly promising long-duration energy storage solution. Since grid connection, the project has been fully engaged in power grid peak shaving, effectively smoothing fluctuations from wind and photovoltaic (PV) power generation, and reinforcing the secure and stable operation of the regional power grid—comprehensively validating the commercial viability of salt-cavern CAES.

Hope Slanvert has been deeply involved in this national demonstration project, providing a complete solution comprising high-voltage variable frequency drive (VFD) systems and high-voltage variable frequency soft-starters for the project's 29 MW compressors, ensuring efficient, stable, and reliable equipment operation, and supporting continuous performance across the entire storage and generation process.

Drawing on technical deployment and engineering practice outcomes accumulated in this project, the Jiangsu Jintan Salt-Cavern CAES National Pilot Demonstration Project was honored with the 【2022 Most Influential Engineering Project】 Award (presented by the Chinese Association of Automation at the 2023 China Automation Industry Annual Conference). This accolade not only recognizes the project's exemplary value across the industry but also serves as authoritative affirmation of Hope Slanvert's technological strength in high-voltage VFD equipment for long-duration energy storage applications.

Continuous Technology Iteration Empowering Industry Advancement

With the ever-expanding installed capacity of wind and photovoltaic power, the power grid's demand for long-duration flexible regulation resources has become increasingly urgent, ushering in unprecedented growth opportunities for the compressed air energy storage sector.

As a high-tech enterprise specializing in drive intelligence and new energy equipment, Hope Slanvert closely tracks the technological evolution and project development needs of CAES. Focusing on energy storage scenarios, the company continuously iterates its core offerings, including high-voltage VFDs and intelligent control systems, and has established a systematic service capability covering the full-process application scenarios of non-combustion CAES.

Rooted in independent innovation and dedicated to empowering green energy development, Hope Slanvert will continue to leverage its core technological strengths, collaborate with industry chain partners, and deliver localized system solutions for diverse application scenarios. With high-performance self-developed equipment, the company is committed to driving industrial upgrading and contributing the power of Hope to advancing the low-carbon energy transition and building a modern energy system. (Contributed by Hope Slanvert)

Source reference: New Energy Technology & Equipment – "China's First Salt-Cavern Compressed Air Energy Storage Demonstration Project Operates Stably for Over 1,500 Days; First Batch of PV-ESS Projects at Datang Lingao Jinpai Port Zero-Carbon Park Connected to Grid"