Hydropower is an enduring source of flexible and reliable energy generation. As the energy landscape changes and demand increases, the hydropower community has a responsibility to improve and advance technology through innovative solutions that address emerging environmental, social, and economic demands. To address this responsibility, the Advanced Technology area considers the design, development, operation, and performance of technologies that maintain the existing hydropower fleet and address new opportunities for energy production. The scope of this area includes any component, equipment, structure, and/or system at a hydropower facility.
While forward and out-of-the-box thinking supports multiple aspects of hydropower development and operations, hydropower visionaries identified three goals during the reimagining process to drive technology through and beyond 2050:
- 1.1 Innovative Approaches and Materials
- 1.2 Environmental Performance
- 1.3 Validated Technology
The first goal focuses on strategies to move beyond conventional approaches to hydropower that optimize performance and unlock new energy potential in a cost-effective manner. The second goal considers the role of hydropower technology in understanding, assessing, and addressing environmental issues, which may vary across different facilities and sites. The third goal is centered around testing, demonstration, and validation of novel technologies to inform their acceptance and use by the hydropower industry.
Forum members have drawn upon their collective experience and expertise to identify activities that will help achieve each of these goals. Similar suggestions were combined and, if necessary, moved to the area and goal where impact and alignment were greatest. For example, discussions of technology acceptance related to design and testing were captured in the Validated Technology goal, whereas regulatory processes for technology acceptance were addressed in the Optimized Regulatory Processes area. This approach generated a set of activities that can direct collaboration, strategic planning, and progress tracking efforts across the hydropower community without creating silos of effort.
Goals & Activities
- Goal 1.1 Innovative Approaches and Materials – Innovative approaches improve development and capacity value.
Activity 1.1.1 – Improve strategies for monitoring, modeling, and predicting the performance of technology.
As the demands of the energy landscape change, it is critical to understand how technologies can and do perform within different contexts. From real-time health and performance monitoring to validation of predictive research models, diverse strategies are needed to collect, assess, and apply performance data.
Activity 1.1.2 – Research applicability of advanced materials and manufacturing techniques, and establish guidance for design standards and application.
Cost-effective and efficient approaches to repair, maintain, and refurbish hydropower components or systems are needed to support hydropower performance while meeting more variable and off-design demands. Recent innovations in advanced materials and manufacturing are promising, but more research is needed to define their role in the hydropower industry, including standards and best practices for their application.
Activity 1.1.3 – Research and develop tools and techniques for subsurface characterization, safety monitoring, and construction to reduce risk, costs, and timelines for large-scale civil projects.
Reducing risk and streamlining siting and construction activities is critical to support future investment and development of hydropower and pumped storage projects. Innovative tools and approaches can help by improving knowledge about subsurface conditions and informing underground tunneling and excavation activities.
Activity 1.1.4 – Research and develop solutions for hybridization of hydropower and innovative storage applications.
Increasing the operational flexibility of hydropower and developing innovative storage solutions are needed to support the growing grid integration of renewable energy technologies and respond to changing energy demands. Novel solutions related to energy conversion, colocation of energy generation technologies, energy storage systems, and others need further exploration to determine their efficacy and costs.
Activity 1.1.5 – Develop technologies and approaches for small hydropower generation at water conveyance structures.
There are many opportunities for power generation at new and existing sites, structures, and facilities that utilize environmental flows, including non-powered dams and municipal or agricultural water conveyance structures. Incorporating standardization and modularity into these designs is critical to ensure scalable and economical technologies.
- Goal 1.2 Environmental Performance – Environmental performance is improved through technology.
Activity 1.2.1 – Establish standard techniques for monitoring, evaluating, and reporting environmental performance of technologies.
Many approaches are used to develop and assess the performance of technologies that address environmental issues. Meaningful advancement in areas such as fish passage, emissions, and others require more consistency in assessing environmental performance and technology progress, including standard protocols and coordinated practices among the hydropower community.
Activity 1.2.2 – Develop and deploy safe passage and guidance technologies to improve survival of aquatic biota.
Advances in technology demonstrate improved aquatic passage and survival rates, but increased deployment requires further community coordination and efficacy assessment. Development and use of supporting technologies such as eDNA, chemical sensors, and others are needed to assess and inform the design and performance of passage and guidance technologies.
Activity 1.2.3 – Improve selective and adaptive control of the withdrawal and release of water quality constituents across a range of flows.
Hydropower balances multiple competing demands, including generation, grid support, and environmental conditions, which can affect flows and water quality constituents such as temperature, sediment, dissolved oxygen, and emissions. Technologies that incorporate real-time sensing and logic are needed to inform smart feedback and control mechanisms that can respond to these changes and effectively manage water quantity and quality.
Activity 1.2.4 – Research and design strategies for understanding, cataloging, and improving sediment processes to promote more natural geomorphological conditions at sites.
The supply, movement, and interaction of sediment with biota is a critical challenge for environmental management of rivers at hydropower sites. To advance management efforts across local and watershed scales, researchers and practitioners need innovative strategies and solutions to track these conditions and inform long-term planning.
Activity 1.2.5 – Develop tools and approaches to improve knowledge and prediction of mechanistic and behavioral aspects of aquatic biota related to attraction, approach, and passage at hydropower structures.
A critical challenge to effective fish attraction and passage is understanding the interaction between fish behavior and hydropower design. Innovative tools and approaches are needed to better understand and quantify the impact of physical cues and environmental dynamics on causal and response mechanisms. Example tools and approaches include visual observation technologies, machine learning, and neural networks, which could be coupled with computational fluid dynamics.
- Goal 1.3 Validated Technology – Technologies are tested, demonstrated, and validated.
Activity 1.3.1 – Establish dedicated testing sites to validate new technologies and inform industry acceptance.
Industry acceptance of new technologies is dependent on their safety, reliability, efficacy, and performance, which could be tested and demonstrated at a dedicated testing facility or network of sites that provide a wide range of testing capabilities. In turn, these sites could enable full-scale validation of environmental mitigations, flexible operation over extended durations, and advanced manufacturing and materials.
Activity 1.3.2 – Identify collaboration approaches with funding agencies and industry for cost and risk sharing of new technology validation across Technology Readiness Levels to enhance acceptance and adoption.
Cost and risk are critical barriers for nascent technology developers in their quest for validation and acceptance. To support valuable innovation, government and industry can work together to identify programs and mechanisms to share costs and de-risk validation while providing incentives and mutual oversight for success across all steps of technology development.
Activity 1.3.3 – Establish best practices for conducting performance and feasibility testing, benchmarking, and information sharing.
Documenting and sharing lessons from validation efforts are essential for understanding and adapting technology developments to meet hydropower community expectations and needs for adoption. Best practices would ensure these validation efforts minimize risk, support objectivity, and maintain transparency across all aspects of testing and information sharing.
Survey Results
Hydropower community members ranked Advanced Technology as high impact in the 2023 Vision Roadmap Survey, and the area was especially prioritized among resource agencies and industry organizations. Despite some disagreement among sectors, hydropower community members prioritized efforts to improve environmental performance of technology and highlighted the need for more technology testing and validation.
Overall results for the Roadmap can be found on the Survey page. Results for other areas can be found on their individual pages under the Roadmap menu.
