Reduced grid operating costs and renewable energy curtailment with electric vehicle charge management

doi:10.1016/j.enpol.2019.111051

Title: Reduced grid operating costs and renewable energy curtailment with electric vehicle charge management

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Abstract

Widespread adoption of plug-in electric vehicles (PEVs) and renewable energy (RE) can help to jointly decarbonize the transportation and electricity sectors. Previous studies indicate strategies to manage PEV charging facilitate integration of RE into electricity grids, but the value of such strategies at scale is unclear because electricity markets and PEV charging have been inadequately represented together. This analysis focuses on the state of California in 2025, and improves on prior work by linking high-resolution mobility and grid dispatch models to quantify the value of managed charging under a 50% RE grid and PEV adoption scenarios up to California's 5 million vehicle target. Even after accounting for practical charging and grid constraints, 0.95 to 5 million “smart” charging PEVs avoid $120 to $690 million in California grid operating costs annually (up to 10% of total costs) and reduce RE curtailment up to 40% relative to unmanaged PEVs. Overnight time-of-use (TOU) charging provides similar cost savings but increases curtailment. Both of these managed strategies defer system infrastructure expansion at the 5 million PEV deployment. The results suggest residential smart charging complemented by TOU tariffs with added daytime periods are policies with most potential to advance California's dual PEV and RE goals.

Authors:: Szinai, Julia K.; Sheppard, Colin J. R.; Abhyankar, Nikit; Gopal, Anand R.

Publication Date:: 2020-01-01

Research Org.:: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1577416

Alternate Identifier(s):: OSTI ID: 1760194

Grant/Contract Number:: 32048; AC02-05CH11231

Resource Type:: Published Article

Journal Name:: Energy Policy

Additional Journal Information:: Journal Name: Energy Policy Journal Volume: 136 Journal Issue: C; Journal ID: ISSN 0301-4215

Publisher:: Elsevier

Country of Publication:: United Kingdom

Language:: English

Subject:: 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; Plug-in electric vehicles; mobility model; electricity grid; renewable energy; smart charging; time-of-use electricity rate

Citation Formats


                    Szinai, Julia K., Sheppard, Colin J. R., Abhyankar, Nikit, and Gopal, Anand R. Reduced grid operating costs and renewable energy curtailment with electric vehicle charge management.  United Kingdom: N. p., 2020. 
        Web.  doi:10.1016/j.enpol.2019.111051.

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                    Szinai, Julia K., Sheppard, Colin J. R., Abhyankar, Nikit, & Gopal, Anand R. Reduced grid operating costs and renewable energy curtailment with electric vehicle charge management.  United Kingdom.  doi:10.1016/j.enpol.2019.111051.

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                    Szinai, Julia K., Sheppard, Colin J. R., Abhyankar, Nikit, and Gopal, Anand R. Wed .  
        "Reduced grid operating costs and renewable energy curtailment with electric vehicle charge management".  United Kingdom.  doi:10.1016/j.enpol.2019.111051.

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@article{osti_1577416,

  title        = {Reduced grid operating costs and renewable energy curtailment with electric vehicle charge management},

  author       = {Szinai, Julia K. and Sheppard, Colin J. R. and Abhyankar, Nikit and Gopal, Anand R.},

  abstractNote = {Widespread adoption of plug-in electric vehicles (PEVs) and renewable energy (RE) can help to jointly decarbonize the transportation and electricity sectors. Previous studies indicate strategies to manage PEV charging facilitate integration of RE into electricity grids, but the value of such strategies at scale is unclear because electricity markets and PEV charging have been inadequately represented together. This analysis focuses on the state of California in 2025, and improves on prior work by linking high-resolution mobility and grid dispatch models to quantify the value of managed charging under a 50% RE grid and PEV adoption scenarios up to California's 5 million vehicle target. Even after accounting for practical charging and grid constraints, 0.95 to 5 million “smart” charging PEVs avoid $120 to $690 million in California grid operating costs annually (up to 10% of total costs) and reduce RE curtailment up to 40% relative to unmanaged PEVs. Overnight time-of-use (TOU) charging provides similar cost savings but increases curtailment. Both of these managed strategies defer system infrastructure expansion at the 5 million PEV deployment. The results suggest residential smart charging complemented by TOU tariffs with added daytime periods are policies with most potential to advance California's dual PEV and RE goals.},

  doi          = {10.1016/j.enpol.2019.111051},

  journal      = {Energy Policy},

  number       = C,

  volume       = 136,

  place        = {United Kingdom},

  year         = {2020},

  month        = {1}

}

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