Sperra, Fraunhofer IEE, and PLEUGER Unite for Energy Innovation
Sperra and Partners Launch Innovative Subsea Energy Storage Initiative
U.S.-based Sperra is making strides in subsea pumped storage hydropower by utilizing cutting-edge concrete 3D printing technology. This groundbreaking method circumvents reliance on crucial imported battery materials, enabling a new era of energy storage solutions.
Funding Secured for Advanced Hydropower Technologies
Recently, Sperra has garnered a $4 million grant from the U.S. Department of Energy's Water Power Technologies Office. This funding is designated to propel advances in pumped storage hydropower technology. A key facet of this venture includes the design and testing of a significant energy storage unit—10 meters in diameter, with a capacity of 500 kW / 600 kWh—located offshore.
Collaboration with International Partners
This substantial grant is complemented by an additional €3.4 million in funding from the German Ministry for Economic Affairs and Climate Action for a parallel development project involving Fraunhofer IEE and PLEUGER Industries GmbH. The teamwork on both fronts aims to establish a cost-effective subsea energy storage technology that aligns with the global pursuit of decarbonizing electrical grids.
Importance of Long-Duration Energy Storage
In light of rising demands for renewable energy integration in the U.S., the need for long-duration energy storage options becomes paramount. Subsea pumped storage hydropower (SPSH) presents a revolutionary approach that can effectively store energy in ocean depths, thus alleviating space concerns typically associated with land-based storage solutions.
Advantages over Conventional Energy Storage
Subsea pumped storage offers all the benefits of traditional systems while effectively mitigating land-use challenges. Unlike conventional batteries, SPSH does not depend on rare materials and can primarily utilize locally sourced concrete, making it a sustainable alternative. The U.S. has access to approximately 75 terawatt-hours of untapped offshore energy potential, significantly superseding onshore storage capabilities.
Leadership Vision
"This project represents a crucial forward step in realizing the energy storage sector's potential for decarbonizing our electricity supply," stated Jason Cotrell, the CEO and Founder of Sperra. He emphasized the advantages of employing local labor and using readily available materials through 3D concrete printing. Collaborating with esteemed organizations such as Fraunhofer IEE and PLEUGER is an exciting aspect of this initiative, affirming the immense promise of their collective research and advancements.
Advancement of Offshore Energy Storage Technology
Sperra's innovative strategy enhances offshore energy storage technology, significantly relying on 3D printing to streamline the construction of modular and scalable concrete storage solutions. Building on the foundation established by prominent figures in energy research, this approach aims toward commercializing subsea pumped storage hydropower for broader deployments, particularly within the U.S. wind energy sector.
Project Team & Stakeholders
The multidisciplinary project team comprises leading members from research, engineering, and energy supply chains, including WSP USA, Purdue University, and the National Renewable Energy Laboratory alongside Fraunhofer IEE and PLEUGER Industries. A carefully constructed advisory panel also lends expertise to this endeavor.
Functional Potential of Pumped Storage
Dr. Bernhard Ernst, Senior Project Manager at Fraunhofer IEE, elaborated on pumped storage's capacity to retain electricity for several hours to days. He highlighted the limited global expansion prospects of traditional systems and the advantages of adapting this technology to a seabed environment, which presents fewer ecological and social challenges.
Next Steps for the Project
The funding and foundations laid through this project build upon earlier research initiatives supported by California's CalSEED program and NYSERDA. Future goals for Sperra involve developing a grid-connected pilot demonstration post-project completion, which will serve to mitigate risks associated with this new technology and attract increased public and private investment, ultimately contributing significantly to future energy storage solutions.
About Sperra
Based in Colorado, with operations extending to various states, including California, New York, and Virginia, Sperra is dedicated to innovating renewable energy solutions via automated construction. Their work involves 3D-printed concrete products, such as wind turbine towers and anchors for various energy systems.
About Fraunhofer IEE
Fraunhofer IEE in Kassel focuses on engineering solutions for the global transition towards renewable energy systems, aiming to minimize the costs associated with implementing clean energy sources while ensuring stability and reliability in energy supply.
About PLEUGER Industries
PLEUGER is distinguished as a leading global supplier of submersible motor pumps and thrusters, with a reputation for reliability across diverse sectors including energy and industrial processing. Their engineering excellence is supported by decades of expertise.
Frequently Asked Questions
What is the main goal of the Sperra project?
The primary aim is to develop innovative subsea pumped storage hydropower technology to enhance renewable energy storage and availability.
How is this project funded?
Funding comes from a $4 million grant by the U.S. Department of Energy and an additional €3.4 million from the German Ministry for Economic Affairs and Climate Action.
Why is subsea energy storage important?
Subsea energy storage addresses the challenges of land-based energy storage and utilizes local materials, making it more sustainable and less reliant on rare materials.
What organizations are collaborating on this project?
The project involves collaboration among Sperra, Fraunhofer IEE, and PLEUGER Industries, along with various research and engineering entities.
What future plans does Sperra have?
Future steps include planning a grid-connected pilot demonstration to mitigate risks and encourage further investments in subsea energy storage technologies.
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