Advancements in underground large‐scale energy storage technologies for new production chains
Year: 2025
Type: article
Abstract: Advancements in underground large-scale energy storage technologies for new production chainsDeep Underground Science and Engineering (DUSE) is pleased to present this special issue highlighting recent advancements in underground large-scale energy storage technologies.This issue comprises 19 articles: six from our special issue "Underground large-scale energy storage technologies in the context of carbon neutrality", 11 from regular submissions on related topics, and two from early regular submissions.These contributions include five review articles, one perspective article, and 13 research articles.The increased volume of this issue and later issues reflects DUSE's commitment to addressing the rapid growth in submissions and the current backlog of high-quality papers.Global energy demand has experienced steady growth in recent decades.While renewable energy capacity has expanded exponentially, fossil fuels remain the dominant energy source, currently accounting for approximately 80% of global primary energy consumption.In major economies, renewables now contribute over 20% of the energy mix.The dual challenges of meeting rising energy demand and reducing greenhouse gas emissions are driving the global transition toward renewable sources.However, the inherent intermittency and instability of renewables-such as solar, wind, marine, geothermal, and biomass energy-create a dynamic imbalance between energy supply and demand.To address this, technologies like power-to-gas, powerto-liquids, and solar-to-fuel have been developed.Among these, energy storage serves as a critical buffer.Energy storage technologies facilitate the spatiotemporal redistribution of energy, maintaining a dynamic balance between generation and demand.This enables higher penetration of renewable sources, improves power system stability, enhances overall efficiency, and reduces the environmental impact of energy generation.Large-scale energy storage is essential for a better integration of renewable sources, balancing supply and demand, enhancing energy security, improving grid management, and advancing the transition to a lowcarbon economy.Underground reservoirs offer significant potential for storing large volumes of fluids with minimal environmental and societal impact, thereby making large-scale energy storage feasible.Viable underground energy storage technologies include compressed air energy storage (CAES), underground pumped hydro storage (UPHS), underground thermal energy storage (UTES), underground gas storage (UGS), and underground hydrogen storage (UHS).These
DOI: 10.1002/dug2.70071
Authors: Jianguo Wang, Chunfai Leung
Language: English
Subfield: Energy Engineering and Power Technology
Field: Energy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W7106574357