The Database for Energy Efficient Resources (DEER) is a California Energy Commission and California Public Utilities Commission (CPUC) sponsored database designed to provide well-documented estimates of energy and peak demand savings values, measure costs, and effective useful life (EUL) all with one data source. The users of the data are intended to be program planners, regulatory reviewers and planners, utility and regulatory forecasters, and consultants supporting utility and regulatory research and evaluation efforts. DEER has been has been designated by the CPUC as its source for deemed and impact costs for program planning.

DEER 2004-05 version 2.01

The most recent update, completed in 2005, has four primary goals:

1. Update the estimates within the database by using recently improved models and methodologies and by expanding the number of efficiency measures available.


2. To integrate and directly link the energy efficiency impact estimates with appropriate cost estimates.


3. To include other useful program planning information variable such as effective useful life estimates by measure and net-to-gross program estimates.


4. To make all this information available through a website.

DEER 2004-05, Version 2.01 (October 2005) has more than 130,000 unique records representing over 360 unique measures within the DEER dataset. The data is presented as a web-based searchable data set. The entire DEER may be downloaded as an access database or portions of the data as excel spreadsheets. Where appropriate, measure information is available for 16 different California climate zones, 36 different building types, five building vintages for single family, multifamily, and nonresidential, and four building vintages for mobile homes. The new data is based on the Energy Commission's Title 24 climate zones, whereas older DEER data was based on Energy Commission forecasting climate zones. A user's guide and the data can be found at

http://eega.cpuc.ca.gov/deer/

Shortly after release of Version 2, there was a revision to the peak demand calculation method for Residential Weather-Sensitive Measures. All weather sensitive residential measure "peak demand" baseline and impact values were revised. No other sector, measures, or data was impacted by this revision. This was a minor revision, so DEER 2004-05, Version 2 is not available on line.

DEER 2004-05, Version 1, DEER 2001 Update, and DEER 4.0 will continue to be archived on this website but are no longer used for program planning.

DEER 2004-05, Version 1

DEER 2004-05, Version 1 is a partial release of DEER data that was made available in April 2005, for 2006-08 program planning. Version 1 data now resides as an archived set of Microsoft Access data, cost data spreadsheets, and other supporting documents. DEER 2004-05, Version 1 is available in a Zip file format.

DEER 2001 Update

The DEER 2001 Update provides cost estimates in 2001 dollars for both residential and commercial energy-efficiency measures. Note that per-unit energy savings and peak demand reduction estimates are provided for residential measures only. Full and incremental cost estimates for each of the studied technologies by size, efficiency, vintage and volume are included. The residential energy and peak savings results are grouped into two categories; those that are sensitive to weather conditions and those that are not. Agricultural and industrial measure costs were not included in the 2001 update. An important difference between DEER 2004-05 and DEER 2001 is that DEER 2001 is based on forecasting climate zones, whereas DEER 2004-05 is based on Title 24 climate zones.

The DEER 2001 Update file is a Zip file containing four data files and instructions in Microsoft Word. Two Microsoft Excel spreadsheets contain the final energy and demand savings values divided into single-family and multi-family homes. "SglFam_ES.xls" contains the savings values for single-family homes and "MultiFam_ES.xls" contains the results for multi-family homes. When opening the spreadsheet files, you may be asked whether you would like to enable macros. Click "Enable." Both spreadsheets are controlled by selecting measures from the droplist in the top right corner of the window.

The DEER 2001 Update also contains a Microsoft Access 2000 database of the Recommended Costs and the same information in a spreadsheet format. The database "2001_DEER.mdb" can be searched using the two-part pull-down menu on the right side of the window. First, click the small arrow button to view the high-level measure categories. Next, click on the specific measure within that category to view the cost data. At the bottom of the database window is an option button allowing the data to be viewed in the same format as the report. For the convenience of users who may not be able to use Access 2000, a Microsoft Excel spreadsheet table, "2001_DEER_CostTable.xls" is provided that contains all of the cost database information in a single copyable format.

DEER 4.0

DEER 4.0 (1996) is the latest complete update of the full data set. DEER 4.0 is a DOS-based computer software package and associated database but it cannot be run with current software. Therefore, the savings and cost estimates have been downloaded into Excel spreadsheets that are available in a zip format.

DEER 4.0 has savings and cost estimates for more than 250 available energy-efficient technologies and emerging technologies from the 1991-1995 period. It also includes estimates of energy and peak savings for over 1,000 measures associated with the California investor-owned utilities' 1995 DSM programs. Finally, there are two market saturation databases. The first database includes estimates of annual installations, market saturations, and feasible market size for more than 350 technologies promoted by utility programs in the early- to mid-1990s. The second includes market-saturation estimates totaling approximately 3,000 data entries for 369 technology installations by building type and climate area - 16 nonresidential building types in five climate areas - and residential homes as of 1993.

CALMAC The California Demand-Side Measure-ment and Evaluation Committee is a consortium of state energy agencies, major electric and gas utilities, and public-interest groups. Members include the California Energy Commission, the California Public Utilities Commission, each of the state's major electric and gas utility companies (Pacific Gas and Electric, Southern California Edison, Southern California Gas, and San Diego Gas & Electric), the Natural Resources Defense Council, the California Institute for Energy Efficiency and Lawrence Berkeley National Lab.

How DEER Came About