The Residential Appliance Saturation Study provides a snapshot of California household equipment and average energy consumption in 2019.
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From 2018 to 2020, the California Energy Commission funded and administered a Residential Appliance Saturation Study that serves as an update to the 2009 RASS, with the following utilities participating: Pacific Gas and Electric Company (PG&E), Southern California Edison (SCE), Sacramento Municipal Utility District (SMUD), San Diego Gas & Electric Company (SDG&E), Southern California Gas Company (SoCalGas), and Los Angeles Department of Water and Power (LADWP). DNV GL Energy Insights (formerly KEMA, Inc.) was the prime consultant for this study as well as the 2009 and 2003 studies.
The research team implemented the study as online and mailed paper surveys. The surveys requested households to provide information on appliances, equipment, and general consumption patterns, including electric vehicle (EV) charging and the presence of renewable energy technology such as a solar photovoltaic (PV) system. The research team completed data collection in early 2020 just before the full impact of COVID-19 events.
The study yielded energy consumption estimates for 28 electric and nine natural gas residential end uses and appliance saturations for households. The project team developed these consumption estimates using a conditional demand analysis, an approach that applied statistical methods to combine survey responses, household energy consumption data, and weather information to calculate average annual consumption estimates per appliance. The 2019 RASS resulted in end-use saturations for 39,682 individually metered and 303 master-metered households. The team weighted survey and conditional demand analysis results to provide population-level estimates, representative of the participating utilities that allow comparison across utility service territories, forecasting climate zones, and other variables of interest including dwelling type, dwelling age group, and income.
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Year
|
Title
|
Description
|
Last Updated
|
|---|---|---|---|
| 2019 | 2019 Executive Summary | Statewide abbreviated summary of 2019 study results - 15 pages | 05/26/2021 |
| 2019 | 2019 Project Overview | Statewide 2019 study results, similar to Exec Summ in prior studies - 63 pages | 05/26/2021 |
| 2019 | 2019 Volume 1: Methodology | Description of 2019 study design, process and overview of results - 143 pages | 05/26/2021 |
| 2019 | 2019 Volume 2: Study Results | Detailed 2019 UEC results, Load Profies and Gas Daily Use - 43 pages | 05/26/2021 |
| 2019 | 2019 Appendices | Appendices A through P for the 2019 study- 196 pages | 05/26/2021 |
| 2019 | 2019 Banner subset: LADWP | Subset of Volume 2 banners - 2019 Results for LADWP - 5 Excel workbooks | 05/26/2021 |
| 2019 | 2019 Banner subset: PG&E | Subset of Volume 2 banners - 2019 Results for PG&E- 5 Excel workbooks | 05/26/2021 |
| 2019 | 2019 Banner subset: SCE | Subset of Volume 2 banners - 2019 Results for SCE- 5 Excel workbooks | 05/26/2021 |
| 2019 | 2019 Banner subset: SoCalGas | Subset of Volume 2 banners - 2019 Results for SoCalGas- 5 Excel workbooks | 05/26/2021 |
| 2019 | 2019 Banner subset: SDG&E | Subset of Volume 2 banners - 2019 Results for SDG&E- 5 Excel workbooks | 05/26/2021 |
| 2019 | 2019 Banner subset: SMUD | Subset of Volume 2 banners - 2019 Results for SMUD- 5 Excel workbooks | 05/26/2021 |
| 2019 | 2019 Banner subset: CA statewide | Subset of Volume 2 banners - 2019 CA Statewide Results - 5 Excel workbooks | 05/26/2021 |
| 2009 | 2009 Executive Summary | Statewide overview of 2009 study results - 46 pages | 10/13/2010 |
| 2009 | 2009 Volume 1: Methodology | Description of 2009 study design, process and overview of results - 145 pages | 10/13/2010 |
| 2009 | 2009 Volume 2: Study Results | Detailed 2009 UEC results - 27 pages | 10/13/2010 |
| 2009 | 2009 Appendices | Appendices A through O for the 2009 study | 10/13/2010 |
| 2009 | 2009 Banner subset - CEC Forecast Zone and RASS Total | Subset of Volume 2 banners - 2009 Results by CEC Forecast Zone and RASS Total | 10/13/2010 |
| 2009 | 2009 Banner subset - LADWP | Subset of Volume 2 Banners - LADWP results for 2009 | 10/13/2010 |
| 2009 | 2009 Banner subset - PG&E | Subset of Volume 2 Banners - PG&E results for 2009 | 10/13/2010 |
| 2009 | 2009 Banner subset - SCE | Subset of Volume 2 Banners - SCE results for 2009 | 10/13/2010 |
| 2009 | 2009 Banner subset - SDG&E | Subset of Volume 2 Banners - SDG&E results for 2009 | 10/13/2010 |
| 2009 | 2009 Banner subset - SoCalGas | Subset of Volume 2 Banners - SoCalGas results for 2009 | 10/13/2010 |
| 2003 | 2003 Executive Summary | Statewide overview of 2003 study results - 42 pages | 06/30/2020 |
| 2003 | 2003 Volume 1 - Methodology and Appendices | Description of 2003 study design, process, and overview of results - 417 pages | 10/13/2010 |
| 2003 | 2003 Volume 1 - Methodology | Description of 2003 study design, process, and overview of results - 162 pages | 10/13/2010 |
| 2003 | 2003 Volume 2 - Study Results and Banners | Detailed 2003 UEC results and saturation banners - 7387 pages | 10/13/2010 |
| 2003 | 2003 Volume 2 - Study Results | Detailed 2003 UEC results - 30 pages | 10/13/2010 |
| 2003 | 2003 Banner subset - RASS Total | Subset of Volume 2 Banners - 2003 RASS total results | 10/13/2010 |
| 2003 | 2003 Banner subset - LADWP | Subset of Volume 2 Banners - LADWP results for 2003 | 10/13/2010 |
| 2003 | 2003 Banner subset - PG&E | Subset of Volume 2 Banners - PG&E results for 2003 | 10/13/2010 |
| 2003 | 2003 Banner subset - SCE | Subset of Volume 2 Banners - SCE results for 2003 | 10/13/2010 |
| 2003 | 2003 Banner subset - SDG&E | Subset of Volume 2 Banners - SDG&E results for 2003 | 10/13/2010 |
| 2003 | 2003 Banner subset - SoCalGas | Subset of Volume 2 Banners - SoCalGas results for 2003 | 10/13/2010 |
| 2003 | 2003 Revised RASS Report | Final report describing updated AC UEC values using 2004 billing data | 10/13/2010 |