Calif Wind Resources

California Wind Maps and Data

California Wind Energy Resource Modeling and Measurement: Measurement Program Final Report

Prepared by AWS Truewind, LLC for the California Energy Commission Public Interest Energy Research Program, June 2006

This report presents the results of a wind resource measurement study conducted on behalf of the California Energy Commission by AWS Truewind for five focus areas in California. The objective of the Measurement Program was to collect high-quality data at heights relevant to modern wind turbines. Data was collected from four tall tower locations and seven sodar sites in California. The analysis period covered in this report is from April 2004 to July 2005. A number of important wind characteristics are presented, including mean wind speed, wind shear, prevailing wind direction, and diurnal speed distributions. Long-term speed estimates were produced for the tall tower locations and sodar locations, when appropriate, through a comparison with regional meteorological reference stations.

Reports associated with this study:

Wind Energy Resource Modeling and Measurement – Map Comparison Report, 2004

Final Detailed Measurement Program Plan, 2004

Statewide Maps and Modifications Report, 2006

California Wind Energy Resource Modeling and Measurement - Wind Map of 5 Sites around California

Prepared by AWS Truewind, LLC for the California Energy Commission Public Interest Energy Research Program, June 2006

California Wind Resources at 70 Meter Elevation

California Energy Commission, 2003

California Wind Resources at 30 Meter Elevation

California Energy Commission, 2006

CEC 2002 New Wind Energy Resource Maps of California

California Energy Commission, 2002

This report describes a wind-mapping project conducted by TrueWind Solutions for the California Energy Commission. The purpose of this contract is to develop more accurate and reliable wind resource maps for California using state-of-the-art numerical modeling techniques and site validation data. This effort not only updates the existing annual wind resource map for California produced in the late 1970s, but includes several enhancements, including the incorporation of new meteorological, geographical and terrain data that have been collected but were unavailable when the original map was produced. Validation of map results also has been performed in conjunction with the modeling effort. These new maps will help to better define wind corridors as well as identify new potential sites for wind energy integration.

CEC Wind Atlas 1985

Information found here was based on the California Energy Commission report, CEC Wind Atlas, April 1985. Most of the windspeed data was collected at <10m above ground level. The complete  CEC Wind Atlas  and its underlying reports can be found at the CEC's main library at 1516 9th St, Sacramento, CA 95814, (916) 654-4292.

CEC Wind Atlas 1985 - excerpts

Report from the California Energy Commission, April 1985

California Wind Map (Google Earth, kmz file)

Wind speeds based on CEC Wind Atlas

Wind Station Index - CEC Wind Atlas 1985

Only Wind Stations with average wind speeds above 10.0 mph are listed.

Miscellaneous California Resources

California Regional Wind Energy Forecasting System (Vol 1, Vol 2, Vol 3, Vol 4)

Electric Power Research Institute Inc., Prepared for the California Energy Commission PIER Program, 2006

The rated capacity of wind generation in California is expected to grow rapidly in the future beyond the approximately 2100 megawatts (MW) in place at the end of 2005. The main drivers are the state’s 20 percent Renewable Portfolio Standard requirement in 2010 and the low cost of
wind energy relative to other renewable energy sources. As wind is an intermittent generation resource and weather changes can cause large and rapid changes in output, system operators will need accurate and robust wind energy forecasting systems in the future. In response to this need, the California Energy Commission (Energy Commission) and the Electric Power Research Institute (EPRI) initiated the California Regional Wind Energy Forecasting System Development Project in 2003 to develop and test short- and intermediate-term (for example, next-hour and next-day) forecast algorithms with improved forecast accuracy relative to the results of a previous project completed in 2002. Volume 1 of the final report is an executive summary of the research and results. It addresses
development and testing of same-day and next-day wind forecasting algorithms, wind tunnel and empirical modeling of wind flow over the complex terrain at Altamont Pass, and development of the California Wind Generation Research Dataset (CARD). Volumes 2 through 4 present the detailed results.

California Renewable Energy Program Preliminary Evaluation

Regional Economic Research Inc. for the Governor and California State Legislature, October 30, 2000

This report provides an overview of the Independent Evaluation of the State of California’s Renewable Energy Program, as provided by AB 1890 which was enacted September 23, 1996. The Renewable Energy Program (Program) is funded by the ratepayers of the three largest California investor-owned utilities through the Renewable Resource Trust Fund. The California Energy Commission (Commission) administers all components of the Program. In 1998, Regional Economic Research, Inc. (RER) was selected by the Commission in a competitive bid process to perform this Preliminary Program Evaluation, along with related market research/assessment and other general program support. The primary objective of this Preliminary evaluation effort is to further the Program’s goal of supporting the development of a fully competitive and self-sustaining California renewable energy supply through early feedback on its performance and impacts on the state’s renewable energy market. In this report, RER offers recommendations for evolving each of the Program’s four key accounts. In addition, this Overall Evaluation Report considers the interrelated evaluation aspects of all the accounts implemented under the Program.

Draft Boundary Layer Research and Findings Report

AWS Truewind, LLC, Prepared for the Californai Energy Commission , December 7, 2005

This is a draft report of Boundary Layer Research done by AWS Truewind. This report discusses identifying poorly simulated cases associated with boundary layer model problems, the results of model experiments, terrain complexity experiments, and surface energy budget formulation experiments.

Northern California Resources

Percent Change in Wind Speed at 50m - Mayacamas Mountains

Prepared by AWS Truewind, LLC for the California Energy Commission Public Interest Energy Research Program, June 2006

Wind Speed Map at 50m - Mayacamas Mountains

Prepared by AWS Truewind, LLC for the California Energy Commission Public Interest Energy Research Program, June 2006

San Francisco County Resources

City and County of San Francisco Wind Resource Assessment Project - Data Analysis and Reporting

Prepared by Itron, Inc. for the California Energy Commission PIER Program, September 2004

The California Energy Commission’s PIER Renewables program element undertook an urban wind resource assessment project to help the City and County of San Francisco optimize its future investment in distributed wind energy generation. Five prospective wind energy generation sites within the City and County were selected. For each site annual energy production estimates were calculated for a generic 10 kW horizontal axis wind turbine on a 98-foot tower. Annual energy production estimates ranged from 7,371 kWh/yr for Hunters Point to 15,632 kWh/yr for Twin Peaks. The findings of this project will help the City and County of San Francisco make better decisions regarding their future investments in small wind-based renewable energy distributed generation, thereby benefiting California.

Urban Wind Power Assessment

Prepared by California Wind Energy Collaborative for the California Energy Commission, May 2014

This project was a preliminary investigation of the wind resource in urban areas. Five buildings in two zones within the city of San Francisco were chosen to assess near surface winds on buildings by wind‐tunnel testing in the Atmospheric Boundary Layer Wind Tunnel at the University of California, Davis. Three buildings located near 10th Street and Market Street—Fox Plaza, the CSAA Building and the Bank of America Building—were tested for two settings. The first setting was actual and included existing buildings and approved developments in the area. The second setting was cumulative, which included proposed development projects and provided what the city might look like in the near future. Two buildings near Folsom Street and Main Street were wind‐tunnel tested for the existing setting only. It was shown that the wind for all of the buildings tested near 10th Street and Market Street averaged “good,” (more than 400 watts per square meter) or “great,” (more than 700 watts per square meter) average wind power density values for the existing and cumulative settings. The two buildings near Folsom Street and Main Street had average values of approximately 234 watts per square meter each.

Shasta County Resources

Percent Change in Wind Speed at 50m - Shasta Valley

Prepared by AWS Truewind, LLC for the California Energy Commission Public Interest Energy Research Program, June 2006

Wind Speed Map at 50m - Shasta Valley

Prepared by AWS Truewind, LLC for the California Energy Commission Public Interest Energy Research Program, June 2006

Solano County Resources

Wind Energy Prospecting in Alameda and Solano Counties

Earl Davis and Ron Nierenberg, Pacific Gas and Electric Company, California Energy Commission, May 1980

The Pacific Gas and Electric Company and the California Energy Commission conducted a wind energy prospecting program in Northern California. Eight candidate areas were initially considered and qualitatively evaluated; two ares in the San Francisco Bay Area were selected for study. a total of 23 sites were instrumented at the 30-ft level. Data were collected and analyzed for the ten-month period of March through December 1979.

Southern California Resources

Advanced Characterization of Wind Resources in Selected Focus Areas of California

AWS Truepower, prepared for California Energy Commission, December 2010

This report presents the results of a wind measurement and mapping study to improve the understanding and predictability of wind regimes within some of California’s attractive wind development regions. Wind measurements using meteorological towers and sonic detection and ranging systems were taken during a one-year period to better characterize the wind regimes of the Tehachapi Pass and Imperial Valley areas of Southern California. The results defined the wind’s mean and temporal characteristics, its vertical structure, and the nature and frequency of extreme weather events. The data were also used to verify and update prior wind map predictions for wind resource in the same areas. Typical meteorological year time-series datasets were developed for nine selected state communities where net metering or load matching evaluations were important. These data sets were intended to support various community-scale wind applications.

Mean Annual Wind Speed at 70m - Tehachapi Pass and Imperial Valley

AWS Truepower, prepared for California Energy Commission, December 2010

Wind Energy Assessment of Southern California

California Energy Commission, 1983

Imperial and San Diego County Resources

Mean Annual Wind Speed at 70m - Imperial Valley Focus Area

AWS Truepower, prepared for California Energy Commission, December 2010

Appendix's with Wind Roses and Wind Frequency Distributions, Construction Emissions and Impact Analysis, Emissions and Operating Parameters, Modeling Analysis, Evaluation of Best Available Control Technology, Cumulative Impacts Analysis, and Compliance Demonstration, Modeling Protocol. This information is for the Pio Pico Energy Center between 2006 and 2008.

 

Kern County Resources

Mean Annual Wind Speed at 70m - Tehachapi Pass Focus Area

AWS Truepower, prepared for California Energy Commission, December 2010

Percent Change in Wind Speed at 50m - Antelope Valley

Prepared by AWS Truewind, LLC for the California Energy Commission Public Interest Energy Research Program, June 2006

Wind Speed Map at 50m - Antelope Valley

Prepared by AWS Truewind, LLC for the California Energy Commission Public Interest Energy Research Program, June 2006

Wind Speed Map of Tehachapi Pass at 50m - Comparison between 2002 and 2006

Prepared by AWS Truewind, LLC for the California Energy Commission Public Interest Energy Research Program, June 2006

Riverside County Resources

Percent Change in Wind Speed at 50m - San Gorgonio Pass

Prepared by AWS Truewind, LLC for the California Energy Commission Public Interest Energy Research Program, June 2006

Wind Energy Assessment of the Palm Springs-Whitewater Region

California Energy Commission, March 1983

This report documents a jointly-sponsored field investigation of the wind energy potential of the Palm Springs- Whitewater Region for the Southern California Edison Company and the California Energy Commission. Presented is a comprehensive description of all field and related activities of the one-year study period (August 1987-July 1979); pertinent historical information; measured data; energy assessment results and wind energy conversation systems performance estimates. The report presents a framework in which data are analyzed in a manner suitable for policy and decision-making for wind energy systems in the PSWR. The study area covers the area from Beaumont, CA through the San Gorgonio Pass to the outskirts of Palm Springs.

Wind Speed Map at 50m - San Gorgonio Pass

Prepared by AWS Truewind, LLC for the California Energy Commission Public Interest Energy Research Program, June 2006

San Bernardino County Resources

Percent Change in Wind Speed at 50m - Mojave Desert

Prepared by AWS Truewind, LLC for the California Energy Commission Public Interest Energy Research Program, June 2006

Wind Speed Map at 50m - Mojave Desert

Prepared by AWS Truewind, LLC for the California Energy Commission Public Interest Energy Research Program, June 2006

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