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Title: Forecasting Peak Electricity Demand for Los Angeles Considering Higher Air Temperatures due to Climate Change

Abstract

We report that Los Angeles County (LAC) is a large urbanized region with 9.7 million residents (as of 2010) and aging infrastructure. Population forecasts indicate that LAC will become home to an additional 1.2-3.1 million residents through 2060. Additionally, climate forecasts based upon representative concentration pathway (RCP) scenarios 4.5 and 8.5 indicate that average air temperatures will increase by 1-4 degrees C (2-7 degrees F) in the region. Both of these factors are expected to result in higher summertime peak electricity demand due to growth in the number of buildings, the percentage of installed air conditioners (ACs), and the additional cooling load on those air conditioners. In order to understand potential power reliability issues, and support infrastructure planning efforts, a long-term peak demand forecast was developed using hourly residential and commercial (R&C) building energy models. Peak hour electricity demand was estimated to increase from 9.5 to 12.8 GW for R&C sectors, to 13.0-17.3 GW (2-36%) and 14.7-19.2 GW (16-51%) by 2060 for the population forecasts from the California Department of Finance and the Southern California Association of Governments respectively. While marginal increases in ambient air temperature due to climate change accounted for only 4-8% of future increases in peak demand,more » differences in annual maximum temperatures within the 20-year periods affected results by 40-66% indicating a high sensitivity to heat waves. Population growth of at least 1 million people is anticipated to occur mostly in the northern cities of Palmdale, Lancaster, and Santa Clarita, bringing an additional 0.4-1 GW of peak demand in those regions. Building and AC efficiency are anticipated to improve as national and state efficiency standards increase, and as older, less efficient units are replaced; this could offset some of the projected increases in peak demand. Furthermore, development of shared wall, multi-family dwelling units could enable population growth of up to 3 million people without increasing peak demand.« less

Authors:
 [1];  [1];  [2];  [2];  [3]
  1. Arizona State Univ., Tempe, AZ (United States)
  2. Univ. of California, Los Angeles, CA (United States)
  3. National Renewable Energy Lab. (NREL), Golden, CO (United States)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE; California Energy Commission (CEC)
OSTI Identifier:
1485557
Report Number(s):
NREL/JA-5500-72927
Journal ID: ISSN 0306-2619
Grant/Contract Number:  
AC36-08GO28308
Resource Type:
Accepted Manuscript
Journal Name:
Applied Energy
Additional Journal Information:
Journal Volume: 236; Journal Issue: C; Journal ID: ISSN 0306-2619
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
29 ENERGY PLANNING, POLICY, AND ECONOMY; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; building energy modeling; peak demand; demand forecasting; spatial analysis; heat waves; climate change

Citation Formats

Burillo, Daniel, Chester, Mikhail V., Pincetl, Stephanie, Fournier, Eric D., and Reyna, Janet. Forecasting Peak Electricity Demand for Los Angeles Considering Higher Air Temperatures due to Climate Change. United States: N. p., 2018. Web. doi:10.1016/j.apenergy.2018.11.039.
Burillo, Daniel, Chester, Mikhail V., Pincetl, Stephanie, Fournier, Eric D., & Reyna, Janet. Forecasting Peak Electricity Demand for Los Angeles Considering Higher Air Temperatures due to Climate Change. United States. https://doi.org/10.1016/j.apenergy.2018.11.039
Burillo, Daniel, Chester, Mikhail V., Pincetl, Stephanie, Fournier, Eric D., and Reyna, Janet. Tue . "Forecasting Peak Electricity Demand for Los Angeles Considering Higher Air Temperatures due to Climate Change". United States. https://doi.org/10.1016/j.apenergy.2018.11.039. https://www.osti.gov/servlets/purl/1485557.
@article{osti_1485557,
title = {Forecasting Peak Electricity Demand for Los Angeles Considering Higher Air Temperatures due to Climate Change},
author = {Burillo, Daniel and Chester, Mikhail V. and Pincetl, Stephanie and Fournier, Eric D. and Reyna, Janet},
abstractNote = {We report that Los Angeles County (LAC) is a large urbanized region with 9.7 million residents (as of 2010) and aging infrastructure. Population forecasts indicate that LAC will become home to an additional 1.2-3.1 million residents through 2060. Additionally, climate forecasts based upon representative concentration pathway (RCP) scenarios 4.5 and 8.5 indicate that average air temperatures will increase by 1-4 degrees C (2-7 degrees F) in the region. Both of these factors are expected to result in higher summertime peak electricity demand due to growth in the number of buildings, the percentage of installed air conditioners (ACs), and the additional cooling load on those air conditioners. In order to understand potential power reliability issues, and support infrastructure planning efforts, a long-term peak demand forecast was developed using hourly residential and commercial (R&C) building energy models. Peak hour electricity demand was estimated to increase from 9.5 to 12.8 GW for R&C sectors, to 13.0-17.3 GW (2-36%) and 14.7-19.2 GW (16-51%) by 2060 for the population forecasts from the California Department of Finance and the Southern California Association of Governments respectively. While marginal increases in ambient air temperature due to climate change accounted for only 4-8% of future increases in peak demand, differences in annual maximum temperatures within the 20-year periods affected results by 40-66% indicating a high sensitivity to heat waves. Population growth of at least 1 million people is anticipated to occur mostly in the northern cities of Palmdale, Lancaster, and Santa Clarita, bringing an additional 0.4-1 GW of peak demand in those regions. Building and AC efficiency are anticipated to improve as national and state efficiency standards increase, and as older, less efficient units are replaced; this could offset some of the projected increases in peak demand. Furthermore, development of shared wall, multi-family dwelling units could enable population growth of up to 3 million people without increasing peak demand.},
doi = {10.1016/j.apenergy.2018.11.039},
journal = {Applied Energy},
number = C,
volume = 236,
place = {United States},
year = {Tue Nov 27 00:00:00 EST 2018},
month = {Tue Nov 27 00:00:00 EST 2018}
}

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