An Energy Storage Cost Comparison: Li-Ion Batteries vs Distributed Load Control

Yue Chen, Neil Cammardella, Robert Moye, Sean Meyn

Research output: Contribution to conferencePaperpeer-review

14 Scopus Citations

Abstract

In 2017, San Diego Gas & Electric installed a 30 MW, 120 MWh lithium-ion battery storage facility-The world's largest at the time. But, recent work demonstrates that local control can enable flexible loads to provide equivalent battery-like services to the grid. Our cost comparison shows that it is much cheaper to acquire 30 MW, 120 MWh of capacity by retro-fitting 120,000 water heaters with control hardware and telecommunications. Surprisingly, it may even be cheaper to give away 120,000 'smart' water heaters.

Original languageAmerican English
Number of pages6
DOIs
StatePublished - 2 Jul 2018
Event2018 Clemson University Power Systems Conference, PSC 2018 - Charleston, United States
Duration: 4 Sep 20187 Sep 2018

Conference

Conference2018 Clemson University Power Systems Conference, PSC 2018
Country/TerritoryUnited States
CityCharleston
Period4/09/187/09/18

Bibliographical note

Publisher Copyright:
© 2018 IEEE.

NREL Publication Number

  • NREL/CP-5D00-73834

Keywords

  • Demand-side management
  • energy storage
  • load management
  • power system economics
  • power system management

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