Green Technology: The Power of Pumped Storage Hydropower
In a groundbreaking study, researchers from the National Renewable Energy Laboratory have revealed that pumped storage hydropower, particularly the closed-looped variety, stands as the green technology of choice for large-scale energy storage. This revelation comes as a potential game-changer in the ongoing quest to reduce greenhouse gas emissions and transition away from fossil fuels.
A Lower Carbon Footprint Throughout Its Lifecycle
The research findings suggest that closed-loop pumped storage hydropower outperforms other renewable energy storage technology supplies, including lithium-ion batteries, when considering the technology’s entire lifecycle, from construction to decommissioning.
Harnessing the Power of Closed-Loop Pumped Storage Hydropower
Closed-loop pumped storage hydropower relies on a simple yet effective principle. Moreover, it utilizes two water reservoirs located at different elevations, with one positioned higher than the other. Power generation occurs as water flows or gets pumped from one reservoir to the other. Notably, this type of hydropower isn’t dependent on continuously flowing natural water sources. That makes it a versatile solution for large-scale energy storage.
A Sustainable Answer to Energy Storage Challenges
The U.S. fervently works to reduce greenhouse gas emissions and shift away from fossil fuels. Furthermore, the importance of finding efficient and environmentally friendly energy storage solutions has never been greater. Closed-loop pumped storage hydropower has emerged as a potential answer to these challenges. Unlike other grid-scale technology jobs that face hurdles related to resource availability and suitable locations, closed-loop pumped storage hydropower offers a viable and green option.
A Comprehensive Assessment
The study conducted by these diligent researchers examined 35 closed-loop pumped storage hydropower sites currently in the permitting process. The investigation also took into account emissions associated with construction materials. That includes concrete, sand, steel, and gravel, as well as the transportation of these materials to the construction sites.
The results are clear: pumped storage hydropower demonstrates lower greenhouse gas emissions when compared to other energy storage technology supplies like utility-scale lithium-ion batteries and vanadium redox flow batteries. This finding is not only promising but also aligns with the U.S. climate goals.
Balancing Energy Needs and Environmental Considerations
While pumped storage hydropower holds immense potential, its implementation does not come without challenges. In Goldendale, Washington, for instance, a proposed pumped storage hydropower facility has the capacity to power the city of Seattle for up to 12 hours. However, it also raises environmental concerns and potential damage to sacred Indigenous sites. This dilemma emphasizes the need for careful consideration and community involvement in clean energy projects.
Green Technology: The Path Forward
Recognizing the complex implications of clean energy transitions on communities, wildlife, water, and land, researchers from Portland State University are diligently studying both the positive and negative impacts of these initiatives. Their aim is to bridge the gap between the communities most affected by such projects and clean energy endeavours, ultimately striving for a more inclusive and sustainable future.
The future of energy storage lies in innovative and green technology like closed-loop pumped storage hydropower. As we move forward, it is imperative that we carefully weigh the environmental impact of our managed technology choices to ensure a cleaner and more sustainable energy landscape for generations to come.
