Adoption Inequalities and Causal Relationship between Residential Electric Vehicle Chargers and Heat Pumps
Publication: Journal of Construction Engineering and Management
Volume 150, Issue 5
Abstract
The building sector has implemented code requirements to promote the adoption of all-electric heating systems and electric vehicle (EV)-ready in new construction, aligning with electrification goals. However, existing studies on adoption and equity indicators lack a comprehensive spatiotemporal perspective, impeding the evaluation of trends over time and across communities. To fill these gaps, this study investigates spatiotemporal inequalities and the link between EV charger and heat pump adoption, integrating community characteristics in Seattle using proposed inequality indices and multilevel vector autoregressive models. Key findings include a recent decrease in Gini inequalities for EV charger adoption and a consistent reduction in Gini inequalities for heat pump adoption over time. EV charger adoption demonstrates a stronger association with spatial inequality across tracts. Higher adoption variations over time for both technologies are observed in similar communities. Additionally, communities with higher EV charger adoption exhibit higher heat pump adoption, with only heat pump adoption Granger causing EV charger adoption within a community. Economic factors predict adoption patterns, linking higher income and income inequality to increased EV charger adoption but lower heat pump adoption. The findings suggest tailored strategies in building codes for promoting equitable clean energy technology implementation, considering technology-specific characteristics and spatial dimensions. Recognizing the causal links between technology adoptions is crucial for collaborating with grid operators, particularly in establishing building standards that prevent grid congestion. Aligning codes with clean energy intricacies promotes sustainable construction and urban environment.
Practical Applications
Striving for electrification in the building sector, the study explores clean energy technology adoption in Seattle. Positive trends emerge, with recent reductions in inequalities for EV chargers and consistent decreases for heat pumps over time. Notably, areas with higher EV charger adoption also experience increased heat pump adoption, with heat pump adoption leading to EV charger adoption. EV charger adoption demonstrates stronger spatial clustering, with higher adoption variations over time observed in similar communities for both technologies. Economic factors, like income, influence these patterns in the opposite direction to the technologies. To ensure a sustainable and fair transition, the research recommends tailored building code strategies, considering each technology’s unique aspects and community spatial layouts. Recognizing the interconnections between these technologies is crucial for collaboration with grid operators and implementing building standards that prevent congestion. Aligning codes with clean energy intricacies fosters sustainability in construction and urban development, contributing to a greener future.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
This material is based in part upon work supported by a fellowship from the University of Washington’s Clean Energy Institute (CEI). The opinions, results, conclusions, and suggestions presented in this work are those of the authors and do not necessarily represent those of the program or the university.
References
Aguilar, F. J., S. Aledo, and P. V. Quiles. 2016. “Experimental study of the solar photovoltaic contribution for the domestic hot water production with heat pumps in dwellings.” Appl. Therm. Eng. 101 (May): 379–389. https://doi.org/10.1016/j.applthermaleng.2016.01.127.
Asare-Bediako, B., W. L. Kling, and P. F. Ribeiro. 2014. “Future residential load profiles: Scenario-based analysis of high penetration of heavy loads and distributed generation.” Energy Build. 75 (Jun): 228–238. https://doi.org/10.1016/j.enbuild.2014.02.025.
Barbier, E. B. 2015. “Climate change impacts on rural poverty in low-elevation coastal zones.” Estuarine Coastal Shelf Sci. 165 (Nov): A1–A13. https://doi.org/10.1016/j.ecss.2015.05.035.
Bernards, R., J. Morren, and H. Slootweg. 2018. “Development and implementation of statistical models for estimating diversified adoption of energy transition technologies.” IEEE Trans. Sustainable Energy 9 (4): 1540–1554. https://doi.org/10.1109/TSTE.2018.2794579.
Bouzarovski, S., and N. Simcock. 2017. “Spatializing energy justice.” Energy Policy 107 (Feb): 640–648. https://doi.org/10.1016/j.enpol.2017.03.064.
Bringmann, L. F., N. Vissers, M. Wichers, N. Geschwind, P. Kuppens, F. Peeters, D. Borsboom, and F. Tuerlinckx. 2013. “A network approach to psychopathology: new insights into clinical longitudinal data.” PLoS One 8 (4): e60188. https://doi.org/10.1371/journal.pone.0060188.
Brockway, A. M., and P. Delforge. 2018. “Emissions reduction potential from electric heat pumps in California homes.” Electr. J. 31 (9): 44–53. https://doi.org/10.1016/j.tej.2018.10.012.
Brückmann, G., F. Willibald, and V. Blanco. 2021. “Battery electric vehicle adoption in regions without strong policies.” Transp. Res. Part D Transp. Environ. 90 (Jan): 102615. https://doi.org/10.1016/j.trd.2020.102615.
Carley, S., R. M. Krause, B. W. Lane, and J. D. Graham. 2013. “Intent to purchase a plug-in electric vehicle: A survey of early impressions in large US cites.” Transp. Res. Part D Transp. Environ. 18 (Jan): 39–45. https://doi.org/10.1016/j.trd.2012.09.007.
CEC (California Energy Commission). 2022. “2022 building energy efficiency standards.” California Energy Commission. Accessed January 14, 2023. https://www.energy.ca.gov/programs-and-topics/programs/building-energy-efficiency-standards/2022-building-energy-efficiency.
Ceriani, L., and P. Verme. 2012. “The origins of the Gini index: Extracts from Variabilità e Mutabilità (1912) by Corrado Gini.” J. Econ. Inequality 10 (3): 421–443. https://doi.org/10.1007/s10888-011-9188-x.
City of Seattle. 2021. “Open data–Tech | seattle.gov.” Accessed August 21, 2021. http://www.seattle.gov/tech/initiatives/open-data.
Curtin, R., Y. Shrago, and J. Mikkelsen. 2009. Plug-in hybrid electric vehicles, 103. Ann Arbor, MI: Univ. of Michigan.
Darghouth, N., G. Barbose, A. Mills, R. Wiser, P. Gagnon, and L. Bird. 2017. Exploring demand charge savings from commercial solar. Berkeley, CA: Lawrence Berkeley National Lab.
Edmunds, C., S. Galloway, J. Dixon, W. Bukhsh, and I. Elders. 2021. “Hosting capacity assessment of heat pumps and optimised electric vehicle charging on low voltage networks.” Appl. Energy 298 (Sep): 117093. https://doi.org/10.1016/j.apenergy.2021.117093.
Eggimann, S., J. W. Hall, and N. Eyre. 2019. “A high-resolution spatio-temporal energy demand simulation to explore the potential of heating demand side management with large-scale heat pump diffusion.” Appl. Energy 236 (Feb): 997–1010. https://doi.org/10.1016/j.apenergy.2018.12.052.
Epskamp, S., L. J. Waldorp, R. Mõttus, and D. Borsboom. 2018. “The Gaussian graphical model in cross-sectional and time-series data.” Multivar. Behav. Res. 53 (4): 453–480. https://doi.org/10.1080/00273171.2018.1454823.
Erutku, C. 2020. “A first look at Ontario’s electric vehicle incentive program: Who Are Ontario’s green drivers?” Can. Public Policy 46 (1): 37–44. https://doi.org/10.3138/cpp.2019-014.
Fuller, T. 2019. PG&E outage darkens Northern California amid wildfire threat. New York: The New York Times.
Gaur, A. S., D. Z. Fitiwi, and J. Curtis. 2021. “Heat pumps and our low-carbon future: A comprehensive review.” Energy Res. Social Sci. 71 (Mar): 101764. https://doi.org/10.1016/j.erss.2020.101764.
Gehrke, S. R., and T. G. Reardon. 2022. “Patterns and predictors of early electric vehicle adoption in Massachusetts.” Int. J. Sustainable Transp. 16 (6): 514–525. https://doi.org/10.1080/15568318.2021.1912223.
Getis, A., and J. Aldstadt. 2004. “Constructing the spatial weights matrix using a local statistic.” Geogr. Anal. 36 (2): 90–104. https://doi.org/10.1111/j.1538-4632.2004.tb01127.x.
Granger, C. W. J. 1969. “Investigating causal relations by econometric models and cross-spectral methods.” Econometrica 37 (3): 424–438. https://doi.org/10.2307/1912791.
Hafner, C. M., and H. Herwartz. 2009. “Testing for linear vector autoregressive dynamics under multivariate generalized autoregressive heteroskedasticity.” Stat. Neerl. 63 (3): 294–323. https://doi.org/10.1111/j.1467-9574.2009.00424.x.
Hamaker, E. L., and R. P. P. P. Grasman. 2015. “To center or not to center? Investigating inertia with a multilevel autoregressive model.” Front. Psychol. 5 (Jan): 1492. https://doi.org/10.3389/fpsyg.2014.01492.
Hidrue, M. K., G. R. Parsons, W. Kempton, and M. P. Gardner. 2011. “Willingness to pay for electric vehicles and their attributes.” Resour. Energy Econ. 33 (3): 686–705. https://doi.org/10.1016/j.reseneeco.2011.02.002.
Holland, S. P., E. T. Mansur, N. Z. Muller, and A. J. Yates. 2019. “Distributional effects of air pollution from electric vehicle adoption.” Supplement, J. Assoc. Environ. Resour. Econ. 6 (S1): S65–S94. https://doi.org/10.1086/701188.
Hoogland, K., D. Chakraborty, and S. Hardman. 2022. “To purchase or lease: Investigating the finance decision of plug-in electric vehicle owners in California.” Environ. Res. Commun. 4 (9): 095005. https://doi.org/10.1088/2515-7620/ac8397.
Karytsas, S., O. Polyzou, and C. Karytsas. 2019. “Factors affecting willingness to adopt and willingness to pay for a residential hybrid system that provides heating/cooling and domestic hot water.” Renewable Energy 142 (May): 591–603. https://doi.org/10.1016/j.renene.2019.04.108.
King County. 2021. “Council approves requirement for electric vehicle charging in new development–King County.” Accessed January 14, 2023. https://kingcounty.gov/council/mainnews/2021/July/7-13-electric-vehicle-charging.aspx.
Krieger, E. M., J. A. Casey, and S. B. C. Shonkoff. 2016. “A framework for siting and dispatch of emerging energy resources to realize environmental and health benefits: Case study on peaker power plant displacement.” Energy Policy 96 (Sep): 302–313. https://doi.org/10.1016/j.enpol.2016.05.049.
Kumar, R. R., and K. Alok. 2020. “Adoption of electric vehicle: A literature review and prospects for sustainability.” J. Cleaner Prod. 253 (Apr): 119911. https://doi.org/10.1016/j.jclepro.2019.119911.
Lee, J. H., S. J. Hardman, and G. Tal. 2019. “Who is buying electric vehicles in California? Characterising early adopter heterogeneity and forecasting market diffusion.” Energy Res. Social Sci. 55 (Apr): 218–226. https://doi.org/10.1016/j.erss.2019.05.011.
Liu, X., M. C. Roberts, and R. Sioshansi. 2017. “Spatial effects on hybrid electric vehicle adoption.” Transp. Res. Part D Transp. Environ. 52 (Mar): 85–97. https://doi.org/10.1016/j.trd.2017.02.014.
Meles, T. H., and L. Ryan. 2022. “Adoption of renewable home heating systems: An agent-based model of heat pumps in Ireland.” Renewable Sustainable Energy Rev. 169 (Nov): 112853. https://doi.org/10.1016/j.rser.2022.112853.
Min, Y., and I. Ko. 2023. “Causal effects of place, people, and process on rooftop solar adoption through Bayesian inference.” Energy 285 (Dec): 129510. https://doi.org/10.1016/j.energy.2023.129510.
Min, Y., and H. W. Lee. 2023. “Characterization of vulnerable communities in terms of the benefits and burdens of the energy transition in Pacific Northwest cities.” J. Cleaner Prod. 393 (Mar): 135949. https://doi.org/10.1016/j.jclepro.2023.135949.
Min, Y., H. W. Lee, and P. M. Hurvitz. 2023. “Clean energy justice: Different adoption characteristics of underserved communities in rooftop solar and electric vehicle chargers in Seattle.” Energy Res. Social Sci. 96 (Feb): 102931. https://doi.org/10.1016/j.erss.2022.102931.
Moran, P. A. P. 1948. “The interpretation of statistical maps.” J. R. Stat. Soc. B 10 (2): 243–251. https://doi.org/10.1111/j.2517-6161.1948.tb00012.x.
Nayum, A., C. A. Klöckner, and M. Mehmetoglu. 2016. “Comparison of socio-psychological characteristics of conventional and battery electric car buyers.” Travel Behav. Soc. 3 (Mar): 8–20. https://doi.org/10.1016/j.tbs.2015.03.005.
Nowotny, J., J. Dodson, S. Fiechter, T. M. Gür, B. Kennedy, W. Macyk, T. Bak, W. Sigmund, M. Yamawaki, and K. A. Rahman. 2018. “Towards global sustainability: Education on environmentally clean energy technologies.” Renewable Sustainable Energy Rev. 81 (Jan): 2541–2551. https://doi.org/10.1016/j.rser.2017.06.060.
Nyangon, J., and J. Byrne. 2021. “Spatial energy efficiency patterns in New York and implications for energy demand and the rebound effect.” Energy Sources Part B 16 (2): 135–161. https://doi.org/10.1080/15567249.2020.1868619.
Ortega-Izquierdo, M., A. Paredes-Salvador, and C. Montoya-Rasero. 2019. “Analysis of the decision making factors for heating and cooling systems in Spanish households.” Renewable Sustainable Energy Rev. 100 (Feb): 175–185. https://doi.org/10.1016/j.rser.2018.10.013.
Plötz, P., U. Schneider, J. Globisch, and E. Dütschke. 2014. “Who will buy electric vehicles? Identifying early adopters in Germany.” Transp. Res. Part A Policy Pract. 67 (Mar): 96–109. https://doi.org/10.1016/j.tra.2014.06.006.
Reckien, D., F. Creutzig, B. Fernandez, S. Lwasa, M. Tovar-Restrepo, D. Mcevoy, and D. Satterthwaite. 2017. “Climate change, equity and the sustainable development goals: An urban perspective.” Environ. Urbanization 29 (1): 159–182. https://doi.org/10.1177/0956247816677778.
Ribeiro, D., S. Samarripas, K. Tanabe, A. Jarrah, H. Bastian, A. Drehobl, S. Vaidyanathan, E. Cooper, B. Jennings, and N. Henner. 2020. The 2020 city clean energy scorecard, 249. Washington, DC: American Council for an Energy-Efficient Economy.
Sandström, M., P. Huang, C. Bales, and E. Dotzauer. 2023. “Evaluation of hosting capacity of the power grid for electric vehicles—A case study in a Swedish residential area.” Energy 284 (Jul): 129293. https://doi.org/10.1016/j.energy.2023.129293.
SBCC (State Building Code Council). 2021. “2021 code proposals | SBCC.” Accessed January 14, 2023. https://www.sbcc.wa.gov/about-sbcc/2021-code-proposals.
Seattle.gov. 2019. “Seattle city council–Record No: CB 119472.” Accessed January 14, 2023. http://seattle.legistar.com/LegislationDetail.aspx?ID=3875336&GUID=A89842CC-3B4A-4C3E-B72B-D5647FED37DB.
Venables, W. N., and B. D. Ripley. 2002. “Spatial statistics.” In Modern applied statistics with S, statistics and computing, edited by W. N. Venables and B. D. Ripley, 419–434. New York: Springer.
WA Legislature. 2021a. “Washington state legislature.” Accessed January 14, 2023. https://app.leg.wa.gov/billsummary?BillNumber=1287&Year=2021&Initiative=false.
WA Legislature. 2021b. “Washington state legislature SB 5192-2021-22.” Accessed January 7, 2023. https://app.leg.wa.gov/billsummary?BillNumber=5192&Year=2021.
Yuksel, T., M.-A. M. Tamayao, C. Hendrickson, I. M. L. Azevedo, and J. J. Michalek. 2016. “Effect of regional grid mix, driving patterns and climate on the comparative carbon footprint of gasoline and plug-in electric vehicles in the United States.” Environ. Res. Lett. 11 (4): 044007. https://doi.org/10.1088/1748-9326/11/4/044007.
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Published In
Journal of Construction Engineering and Management
Volume 150 • Issue 5 • May 2024
Copyright
© 2024 American Society of Civil Engineers.
History
Received: Jan 20, 2023
Accepted: Dec 6, 2023
Published online: Feb 21, 2024
Published in print: May 1, 2024
Discussion open until: Jul 21, 2024
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