Dave joined NREL (then the Solar Energy Research Institute [SERI]) in 1985. He specializes in data acquisition and instrumentation and has served as lead technician on several NREL projects. Dave has installed instrumentation on meteorological towers and all classifications of wind turbines, and he has experience with sodar and tall towers. Dave joined the Independent Testing team by participating in Skystream 2 testing in 2006 and Mariah testing in early 2008. Dave worked under other staff members to become familiar and proficient in the testing requirements in accordance with IEC and MEASNET standards and in the procedures used in the NWTC's quality assurance system. Dave is a fully qualified member of the certification test team for power performance, loads, safety and function, and duration testing.