Beyond Resource Complementarity: Identifying High-value Reservoirs for Potential Hydropower-floating Solar Hybrid Plants

Abstract Submission: Hydropower operators, traditionally focused on centralized, large-scale energy production, now face the growing challenge of integrating distributed energy resources (DERs) such as solar and wind into an increasingly dynamic grid. The inherent variability and intermittency of these DERs demand substantial adaptations in both operational strategies and long-term planning to preserve grid stability and flexibility. This evolving landscape introduces significant uncertainties that threaten profitability, forcing operators to strike a difficult balance between maintaining operational flexibility and ensuring financial sustainability.
This work proposes a novel complementarity framework that combines floating solar (FPV) and hydropower to optimize their joint potential. The framework will identify high-value reservoirs by evaluating factors such as joint capacity, market participation potential, community needs, grid service contributions, and the ability to meet rising load demand. By prioritizing reservoirs with strategic value across multiple dimensions, this methodology aims to ensure the seamless integration of solar and hydropower resources, addressing both operational goals and community-focused objectives.
In addition, the study will develop a predictive model that leverages historical data and real-time inputs to optimize the balance between solar and hydropower generation. This model will enhance grid stability by dynamically adjusting hydropower output to offset the variability of solar energy, thereby minimizing risks related to energy production uncertainties.
Finally, the work will explore strategies to boost hydropower operators’ participation in electricity markets. By leveraging the complementarity between solar and hydropower, operators can tap into ancillary services, demand response programs, and time-of-use pricing. This approach not only increases potential revenue streams but also enhances the overall profitability and market competitiveness of hydropower operations

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