Wake Deficit Measurements on the Jess and Souza Ranches, Altamont Pass

This report is ninth in a series of documents presenting the findings of field tests under DOE's Cooperative Field Test Program (CFTP) with the wind industry. This report provides results of a project conducted by Altamont Energy Corp. (AEC) to measure wake deficits on the Jess and Sousa Ranches in Altamont Pass, CA. This research enhances and complements other DOE-funded projects to refineestimates of wind turbine array effects. This project will help explain turbine performance variability caused by wake effects.