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Welcome to the RASS Reporting Center
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**TO RUN INTERACTIVE QUERIES CLICK THE RASS REPORTS TAB ABOVE & DISABLE POP-UP BLOCKERS FOR THIS SITE**
The California Energy Commission's Consortium Residential Appliance Saturation And Unit Energy Consumption Study
For the first time in California, the large Investor Owned Utilities (IOUs) pooled resources and performed a RASS and Unit Energy Consumption (UEC) Study as a team. The project was administered by the California Energy Commission and sponsored by Pacific Gas and Electric (PG&E), San Diego Gas and Electric (SDG&E), Southern California Edison (SCE), Southern California Gas Company (SoCalGas), and Los Angeles Department of Water and Power (LADWP). KEMA-XENERGY was the prime consultant. Itron provided data cleaning and performed the Conditional Demand Analysis. RoperASW fielded the non-response follow-up.
The RASS effort has resulted in a research product that provides both statewide and utility-specific results. The study was designed to allow comparison of results across utility service territories, climate zones and other variables of interest (i.e. dwelling type, dwelling vintage, and income). The study includes results for 21,920 residential customers that are weighted to the population represented by the sponsoring utilities. The saturation results capture both individual and master metered dwellings. This rich set of customer data includes information on all appliances, equipment, and general usage habits. The study also includes a detailed conditional demand analysis that calculates unit energy consumption (UEC) values for all individually metered customers.
The study was initiated in late 2002 and the sampling plans and survey implementation occurred throughout 2003. The results from the RASS study were used to develop a CDA model. This analytical method uses a combination of customer energy use with the responses from the customer survey to model end uses and develop unit energy consumption results for those end uses.
Feel free to browse the site and explore. All documents related to the project are available in the Document section below. The RASS Reports banner allows users to perform interactive queries on the database as well as to access specific UEC results. Please register as a first time user or sign in to obtain access to the results pages. To goto the RASS Reports query tool, please click on the RASS Reports tab above. The tab will only appear after registration.
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Updates
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08/18/2004 | Reports cannot be run with pop-up blockers enabled. Please turn them off to run reports. |
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08/05/2004 | The Web Site Technical Support is now working. Please note the new email address is RASSSupport@kema-xenergy.com. |
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08/05/2004 | Title 24 Climate Zones have been added to the query. |
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10/20/2004 | The formatting for the 'Primary Language' variable (ETHNIC) has been corrected. 2=Spanish, 3=Asian. |
| 05/24/2006 |
The final report describing the RASS update to air conditioning UECs using 2004 billing data is available for download under the documents section. Because the initial study was performed at a time when the Statewide 20/20 program was in effect and customers were incentivized for reducing their summer energy use, the Energy Commission contracted with KEMA and Itron to perform a follow-on analysis of the results with non-20/20 program period billing data. The follow-on analysis uses data from 2004. |
| 06/30/2006 |
Static UEC tables updated with revised weather-sensitive UECs. |
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