Using energy storage systems to extend the life of hydropower plants
Abstract
Despite their advantages, distributed energy resources (DERs) bring inherent uncertainty and variability into the landscape of modern power systems. As DER penetration grows, conventional generators like hydropower plants have to respond more often to arrest the imbalance in the net load. Hydropower turbines provide their best operational performance with minimal wear and tear when operating at regions of maximum efficiency. However, the current needs for hydropower plants require them to operate under varying load conditions and thus sub-optimal operating points leading to additional stress. To relieve the hydropower plants, this paper proposes a hybridization strategy where a hydropower unit is paired with an energy storage system (ESS) to increase operational flexibility and mitigate damage to the hydro plant. Models are developed to represent the operation of the hybrid system, quantify degradation, and assess economic benefits. Moreover, an innovative controller disaggregates the market dispatch signal into separate control setpoints for the ESS and hydropower unit. In case studies performed on a real-world hydropower facility, it was found that the ESS-based hybridization can extend the life of the hydropower plant by 5% on average. Notably, the economic benefits from reduced maintenance and deferred investment are estimated to be around $3.6 million.
- Publication Date:
- Research Org.:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Org.:
- USDOE Office of Electricity (OE)
- OSTI Identifier:
- 1968035
- Report Number(s):
- PNNL-SA-174080
Journal ID: ISSN 0306-2619
- Grant/Contract Number:
- AC05-76RL01830
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Applied Energy
- Additional Journal Information:
- Journal Volume: 337; Journal ID: ISSN 0306-2619
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 13 HYDRO ENERGY; 25 ENERGY STORAGE; economic analysis; energy storage system; hybrid operation; hydro turbines; power system operation
Citation Formats
Bhatti, Bilal Ahmad, Hanif, Sarmad, Alam, Jan E., Mitra, Bhaskar, Kini, Roshan L., and Wu, Di. Using energy storage systems to extend the life of hydropower plants. United States: N. p., 2023.
Web. doi:10.1016/j.apenergy.2023.120894.
Bhatti, Bilal Ahmad, Hanif, Sarmad, Alam, Jan E., Mitra, Bhaskar, Kini, Roshan L., & Wu, Di. Using energy storage systems to extend the life of hydropower plants. United States. https://doi.org/10.1016/j.apenergy.2023.120894
Bhatti, Bilal Ahmad, Hanif, Sarmad, Alam, Jan E., Mitra, Bhaskar, Kini, Roshan L., and Wu, Di. Sat .
"Using energy storage systems to extend the life of hydropower plants". United States. https://doi.org/10.1016/j.apenergy.2023.120894. https://www.osti.gov/servlets/purl/1968035.
@article{osti_1968035,
title = {Using energy storage systems to extend the life of hydropower plants},
author = {Bhatti, Bilal Ahmad and Hanif, Sarmad and Alam, Jan E. and Mitra, Bhaskar and Kini, Roshan L. and Wu, Di},
abstractNote = {Despite their advantages, distributed energy resources (DERs) bring inherent uncertainty and variability into the landscape of modern power systems. As DER penetration grows, conventional generators like hydropower plants have to respond more often to arrest the imbalance in the net load. Hydropower turbines provide their best operational performance with minimal wear and tear when operating at regions of maximum efficiency. However, the current needs for hydropower plants require them to operate under varying load conditions and thus sub-optimal operating points leading to additional stress. To relieve the hydropower plants, this paper proposes a hybridization strategy where a hydropower unit is paired with an energy storage system (ESS) to increase operational flexibility and mitigate damage to the hydro plant. Models are developed to represent the operation of the hybrid system, quantify degradation, and assess economic benefits. Moreover, an innovative controller disaggregates the market dispatch signal into separate control setpoints for the ESS and hydropower unit. In case studies performed on a real-world hydropower facility, it was found that the ESS-based hybridization can extend the life of the hydropower plant by 5% on average. Notably, the economic benefits from reduced maintenance and deferred investment are estimated to be around $3.6 million.},
doi = {10.1016/j.apenergy.2023.120894},
journal = {Applied Energy},
number = ,
volume = 337,
place = {United States},
year = {Sat Mar 04 00:00:00 EST 2023},
month = {Sat Mar 04 00:00:00 EST 2023}
}
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