There have been recent advancements and developments in pumped storage hydropower (PSH) that aim to improve its efficiency and accessibility:
Advancements in Pumped Storage Hydropower
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Algorithm for Grid Stability:
US scientists have recently developed an algorithm to predict electric grid stability using signals from PSH projects. This innovation helps optimize the performance of PSH systems in maintaining grid reliability and stability. -
Innovative Construction Methods:
Researchers are exploring the use of modern tunnel-boring machines (TBMs) to construct underground PSH facilities. This approach could significantly reduce construction time and costs by up to 50%, allowing PSH to be more viable in flat landscapes where traditional methods are less practical. -
Efficiency and Cost Considerations:
Pumped storage remains one of the most efficient forms of long-duration energy storage, with round-trip efficiencies typically ranging from 75% to 80%. While lithium-ion batteries can also achieve high efficiencies, pumped hydroelectric storage is generally the lowest-cost option for long-duration storage. -
Closed-Loop Systems and Retrofits:
Proposals have been made to add new upper reservoirs to existing hydropower systems, allowing for additional storage capacity without the need for entirely new facilities.
These advancements highlight potential paths for enhancing the efficiency and versatility of PSH systems while maintaining their status as a premier long-duration energy storage solution.
Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/are-there-any-new-advancements-in-pumping-technologies-that-could-improve-the-efficiency-of-pumped-hydroelectric-energy-storage/
