R&D and Innovation

Non-combustion compressed air energy storage Wind and solar hydrogen production technology

Non-Supplementary Combustion Compressed Air Energy Storage (CAES) A Large-Scale Long-Duration Energy Storage Solution Combining Economy, Safety, and Stability

A CAES system consists of four main processes: compression, air storage, heat exchange, and expansion. During charging, electricity drives compressors to generate high-pressure air and compression heat, which are stored separately. During discharge, the high-pressure air is reheated by the stored compression heat and expanded through a turbine to generate electricity. Excess heat can be supplied externally for heating, while the cold energy generated during air expansion can be used for cooling, enabling combined cooling, heating, and power (CCHP).

Core Technology System

1 Core Process Package

A globally pioneering Non-Combustion CAES process package, covering full-process simulation and multi-energy flow coupling design.

2 Key Control Capabilities

Advanced temperature control (from medium-low to medium-high temperature ranges) and pressure control (constant pressure and wide sliding pressure operation).

3 Pieces of Core Equipment

Engineering design and parameter definition capabilities for compressors, heat exchangers, and turbines.

Technology Iteration Through the construction and operation of n generations of CAES power plants, multiple technical routes have been fully validated, with over three years of operational data accumulated.

2014 | World's first Non-Supplementary Combustion CAES power station High-Pressure Vessel System Anhui 500 kW pilot plant

2016 | World's first solar-thermal coupled Non-Supplementary Combustion CAES system Solar Thermal Coupled System Qinghai 100 kW pilot system

2022 | World's first commercial Non-Supplementary Combustion CAES plant Salt Cavern Storage Jiangsu 60 MW / 300 MWh

2024 | World's first high-cold wide-sliding-pressure Non-Supplementary Combustion CAES plant Artificial Cavern + Wide Sliding Pressure (Cold Climate) Inner Mongolia Huade 60 MW CAES

2025 | World's first million-kilowatt-scale Non-Supplementary Combustion CAES plant World’s Largest CAES Power Station Ulanqab 1050 MW project

Full Lifecycle Digital Twin Platform (AI + Operations)

Focusing on simulation-driven modeling, digital twin integration, and training support, two core platforms have been established

CAES Digital Twin Platform

Enables full 3D reconstruction of power plants and multi-mode interaction, supporting system-level and equipment-level dynamic simulation.

Underground Storage Simulation Platform

Covers the full design process including volume calculation, structural design, and cost estimation.

CAES Digital Twin Platform

Enables full 3D reconstruction of power plants and multi-mode interaction, supporting system-level and equipment-level dynamic simulation.

Underground Storage Simulation Platform

Covers the full design process including volume calculation, structural design, and cost estimation.