Water/Energy Bank Proof-of-Concept
Innovative State Water Project Delivery Scheduling Shifts has Potential to Significantly Lower Summer Electric Peak Demand
This project was completed in July 2019. The technical and final reports are complete. Using the Edmonston pumping plant for the analysis, implementation of the Recipient's recommendations would lead to an average peak load reduction of 60 MW from July to September based on a normal water year. A notable finding is the possibility of converting the Water-Energy Bank into an energy neutral operation through the use of 40 MW of solar arrays and 5 MW of hydropower. The Recipient presented the Water-Energy Bank concept at the Demand Response & Distributed Energy Resources World Forum on October 16, 2018 and American Water Works Association CA-NV spring conference The Recipient also plans to publish results in journals and disseminate results at future conferences after the end of the grant period.
This proof of concept study evaluated the feasibility of using groundwater storage and cycling surface reservoirs to shift the State Water Project's Southern California water deliveries to non-summer months to reduce summer electric grid peak demand. Shifting the timing of water deliveries could reduce solar and wind power over-generation risk during non-summer months when renewable energy is in surplus. This project investigated the technical, institutional, legal and economic feasibility of implementing a guaranteed water delivery shift and develop demand response and load shifting tools and strategies to manage peak load and demand and thereby reduce energy costs in the water sector.
By implementing the recommendations found by this research study, the State Water Project (SWP) contractors could eliminate the need to meet peak electricity needs using fossil-fueled combustion turbines due to summer reductions
Implementing the recommendations from this study has the potential to increase use of renewable energy generation during periods of over generation by pumping water through the State Water Project during these times. Use of renew
Implementing recommendations from the research study could improve electric grid reliability by providing a guaranteed summer pumping reduction that provides firm demand response to match the evening ramp up as solar arrays go of
Key Project Members
Energy & Environmental Economics, Inc.
Water and Energy Consulting
GEI Consultants, Inc.
HDR Engineering, Inc
Antelope Valley Water Storage, LLC