The Necessity and Feasibility of Hydrogen Storage for Large-Scale, Long-Term Energy Storage in the New Power System in China

Energies, Год журнала: 2023, Номер 16(13), С. 4837 - 4837

Опубликована: Июнь 21, 2023

In the process of building a new power system with energy sources as mainstay, wind and photovoltaic enter multiplication stage randomness uncertainty, foundation support role large-scale long-time storage is highlighted. Considering advantages hydrogen in large-scale, cross-seasonal cross-regional aspects, necessity, feasibility economy participation under are discussed. Firstly, supply demand production simulations were carried out based on characteristics generation China. When penetration reaches 45%, long-term becomes an essential regulation tool. Secondly, by comparing duration, scale application scenarios various technologies, it was determined that most preferable choice to participate storage. Three methods screened from numerous including salt-cavern storage, natural gas blending solid-state Finally, analyzing development status above three types geographical resource endowment China, pointed China will form “solid state ground salt cavern underground” future.

Язык: Английский

---

Optimal integration of a low-carbon energy system – A circular hydrogen economy perspective

Energy Conversion and Management, Год журнала: 2023, Номер 292, С. 117354 - 117354

Опубликована: Июль 3, 2023

Язык: Английский

---

Techno-economic analysis of underground hydrogen storage in Europe

iScience, Год журнала: 2023, Номер 27(1), С. 108771 - 108771

Опубликована: Дек. 20, 2023

Hydrogen storage is crucial to developing secure renewable energy systems meet the European Union's 2050 carbon neutrality objectives. However, a knowledge gap exists concerning site-specific performance and economic viability of utilizing underground gas (UGS) sites for hydrogen in Europe. We compile information on UGS assess potential capacity evaluate associated current future costs. The total Europe 349 TWh working (WGE), with capital costs ranging from $10 million $1 billion. Porous media salt caverns, boasting minimum 0.5 WGE, exhibit levelized $1.5 $0.8 per kilogram hydrogen, respectively. It estimated that can potentially decrease as low $0.4 after three experience cycles. Leveraging these techno-economic considerations, we identify suitable sites.

Язык: Английский

---

Stability evaluation of salt cavern hydrogen storage and optimization of operating parameters under high frequency injection production

Gas Science and Engineering, Год журнала: 2023, Номер 119, С. 205119 - 205119

Опубликована: Сен. 21, 2023

Язык: Английский

---

Multi-criteria site selection workflow for geological storage of hydrogen in depleted gas fields: A case for the UK

International Journal of Hydrogen Energy, Год журнала: 2023, Номер 51, С. 143 - 157

Опубликована: Ноя. 10, 2023

Underground hydrogen storage (UHS) plays a critical role in ensuring the stability and security of future clean energy supply. However, efficiency reliability UHS technology depend heavily on careful criteria-driven selection suitable sites. This study presents hybrid multi-criteria decision-making framework integrating Analytical Hierarchy Process (AHP) Preference Ranking Organisation Method for Enrichment Evaluations (PROMETHEE) to identify select best sites among depleted gas reservoirs UK. To achieve this, new set site criteria is proposed light technical economic aspects UHS, including location, reservoir rock quality tectonic characteristics, maximum achievable well deliverability rate, working capacity, cushion volume requirement, distance potential clusters, access intermittent renewable sources (RESs). The implemented rank 71 based their suitability UHS. Firstly, are thoroughly evaluated each criterion then AHP-PROMETHEE technique employed prioritise reveals that total calculated capacity single-well plateau withdrawal rates around 881 TWh across all reservoirs. found vary considerably sites; however, 22 % estimated have exceeding 100 sm3/d, 63 located within km from major cluster. Moreover, 70 nearby RESs developments, with an cumulative approximately 181 GW. results highlight efficacy framework. top five highest-ranked Cygnus, Hamilton, Saltfleetby, Corvette, Hatfield Moors fields. insights provided by this can contribute informed decision-making, sustainable development, overall progress projects UK globally.

Язык: Английский

---

Carbon abatement costs of green hydrogen across end-use sectors

Joule, Год журнала: 2024, Номер unknown

Опубликована: Окт. 1, 2024

Язык: Английский

---

Economic Assessment of Clean Hydrogen Production from Fossil Fuels in the Intermountain-West Region, USA

Renewable and Sustainable Energy Transition, Год журнала: 2024, Номер 5, С. 100077 - 100077

Опубликована: Янв. 8, 2024

The transition from fossil fuels to carbon-neutral energy sources is necessary reduce greenhouse gas (GHG) emissions and combat climate change. Hydrogen (H2) provides a promising path harness in sectors such as transportation. However, regional economic analyses of various H2 production techniques are still lacking. We selected well-known fuel-exporting region, the USA's Intermountain-West (I-WEST), analyze carbon intensity demonstrate tradeoffs. Currently, 78% global comes natural coal. Therefore, we considered steam methane reforming (SMR), surface coal gasification (SCG) underground (UCG) methods this work. developed cost estimation frameworks SMR, SCG UCG with without capture, utilization sequestration (CCUS). In addition, identified optimal sites for hubs by considering proximity sources, markets, storage CO2 sites. included new tax credits (PTCs) quantify benefit CCUS. Our results suggest that has lowest levelized due elimination cost. using SMR process 99% capture profitable when PTCs considered. also analyzed opportunities where conversion formic acid option. This work quantifies potential I-WEST key parameter designing pathways.

Язык: Английский

---

Molecular simulations of hydrogen diffusion in underground porous media: Implications for storage under varying pressure, confinement, and surface chemistry conditions

International Journal of Hydrogen Energy, Год журнала: 2024, Номер 65, С. 540 - 547

Опубликована: Апрель 9, 2024

Язык: Английский

---

A comparative analysis of gas mixing during the underground hydrogen storage in a conventional and fractured reservoir

Gas Science and Engineering, Год журнала: 2024, Номер 122, С. 205217 - 205217

Опубликована: Янв. 11, 2024

Язык: Английский

---

Molecular Insights into the Impact of Surface Chemistry and Pressure on Quartz Wettability: Resolving Discrepancies for Hydrogen Geo-storage

ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 12(14), С. 5555 - 5563

Опубликована: Март 26, 2024

Subsurface formations are promising for large-scale H2 storage, balancing the energy demand and supply. Wettability is vital in ensuring storage safety, efficiency, capacity, whereas noticeable discrepancies exist literature. This work reconciles these by revealing mechanisms of quartz wettability alteration with surface chemistry pressure using classical molecular dynamics simulation. We find that fully rigid substrate results much lower hydrophilicity than flexible hydroxyl group substrates due to probability hydrogen bond formation between water groups. Also, relies on not only area density but also arrangement Monolayer adsorption both hydrophilic hydrophobic surfaces observed, structure adsorbed film different. Dissolved prefers move rather staying bulk water. The contact angle hydroxylated fluctuates 30.7 37.1° ranging from 1–30 MPa, without a monotonic trend. reveal dominant mechanism within this range pinning effect induced microstructures surface.

Язык: Английский

---