As renewable energy adoption intensifies, the demand for efficient and large-scale storage technologies such as compressed air energy storage (CAES) has become
The compressed air energy storage (CAES) system is a very complex system with multi-time-scale physical processes. Following the
With the demand for peak-shaving of renewable energy and the approach of carbon peaking and carbon neutrality goals, salt caverns are
The use of abandoned coal mine tunnels as underground compressed air energy storage (CAES) facilities has garnered significant attention given that it effectively repurposes unused
Widely distributed aquifers have been proposed as effective storage reservoirs for compressed air energy storage (CAES). This aims to overcome the limitations of geological
To expedite the construction and implementation of compressed air energy storage (CAES) in under- ground salt caverns (USCs), conducting a thorough stability
The compressed air energy storage cavern stability is strongly affected by initial damages and cavern shape transformations. The transformation of an abandoned coal mine roadway into
Compressed air energy storage (CAES) caverns transformed from horseshoe‐shaped roadways in abandoned coal mines still face unclear mechanisms of force
15. Conclusions Compressed Air Energy Storage (CAES) represents a versatile and powerful technology that addresses many of the challenges associated
In summary, the proposed pipe layout-type abandoned mine gas storage scheme has the following advantages: ① it reduces the requirements of gas storage on the geological structure
Compressed air energy storage (CAES) has emerged as a game-changing solution in transforming underground mining spaces into powerful energy
As the address types of underground gas storage, the existing compressed air energy storage projects or future ideas can be divided into the following four types: rock salt
Abstract Large-scale compressed air energy storage (CAES) technology can effectively facilitate the integration of renewable energy sources into the power grid. The
The intermittent nature of renewable energy poses challenges to the stability of the existing power grid. Compressed Air Energy Storage (CAES) that stores energy in the form
The comparison and discussion of these CAES technologies are summarized with a focus on technical maturity, power sizing, storage capacity, operation pressure, round
Abstract The long-term stability of a lined rock cavern (LRC) for underground compressed air energy storage is investigated using a thermo-mechanical (TM) damage
To support the large-scale integration of renewable energy, this study evaluates the technical and economic feasibility of utilizing China''s abundant abandoned salt caverns for compressed air
Large-scale compressed air energy storage (CAES) technology is regarded as an effective way to alleviate the instability of electricity generated from renewable sources such as
This paper presents a numerical modeling study of coupled thermodynamic, multiphase fluid flow and heat transport associated with underground compressed air energy
This study comprehensively evaluates the stability of Compressed Air Energy Storage Roadways (CAES-R) under multiple operating frequencies by simultaneously
PDF | On Jul 19, 2023, Mingzhong Wan and others published Compressed air energy storage in salt caverns in China: Development and outlook | Find, read
Compressed air energy storage (CAES) is pivotal in integrating renewable energy and balancing the power grid. This study assesses the stability and ground subsidence
A rock mass is mainly subjected to a high internal pressure load in the lined rock cavern (LRC) for compressed air energy storage (CAES).
As an effective approach of implementing power load shifting, fostering the accommodation of renewable energy, such as the wind and solar generation, energy storage
Among all energy storage systems, the compressed air energy storage (CAES) as mechanical energy storage has shown its unique eligibility in terms of clean storage
The utilization of abandoned mines to build compressed air energy storage (CAES) power stations can fully utilize land and space resources and reduce excavation costs. It possesses
It is desirable to build compressed air energy storage (CAES) power plants in this area to ensure the safety, stability, and economic operation of the power network.
To elaborate on the research and future development of salt cavern compressed air energy storage technology in China, this paper analyzes the mode and
The world''s largest compressed-air energy storage power station, the second phase of the Jintan Salt Cavern Compressed Air Energy
Three-dimensional thermo-mechanical analysis of abandoned mine drifts for underground compressed air energy storage: a comparative study of two construction and
Large-scale CAES technology provides a cost-effective solution for storing surplus energy generated by intermittent renewable sources like wind and solar [9]. CAES
Thus, over a 24 h period, we can store about 2000 W per meter drift. However, note that our analysis is focused on air tightness and energy balance of the underground cavern, whereas additional energy transfer will also occur during the compression and cooling of the air at the ground surface facility.
A storage cavern was located at more than 450 m underground in rock salt, with a storage volume at over 500,000 m 3. Air storage pressure is about 7.4 MPa, and at full decompression, air pressure is about 4.5 MPa.
General requirements for underground rock caverns involved in CAES include stability, air tightness, acceptable surface subsidence, and (later on) an environmentally safe decommissioning and abandonment .
When salt cavern CAES stores 5% of solar and wind energy, the required energy storage capacity will reach 485.0 TWh by 2050. If 50% of Class A salt caverns and 20% of Class B salt caverns are repurposed for CAES (Mode 1), mining enterprises could provide 466.6 TWh of storage capacity by 2050.
Discussion This study investigates the method of utilizing abandoned salt caverns for CAES. By developing a 3D geomechanical model, the mechanical response of abandoned salt caverns during the storage of compressed air was simulated numerically.
Among the different ES technologies, compressed air energy storage (CAES) can store tens to hundreds of MW of power capacity for long-term applications and utility-scale. The increasing need for large-scale ES has led to the rising interest and development of CAES projects.