Page 167 - Solar Power in Building Design The Engineer's Complete Design Resource
P. 167

SEMITROPIC OPEN FIELD SINGLE-AXIS TRACKING SYSTEM PV ARRAY  137


               Semitropic Open Field Single-Axis

               Tracking System PV Array—Technical

               Specifications


               The following project was designed and built by Shell Solar and consists of a solar farm
               configured from 1152-kW solar array modules. The single axis solar power tracking
               system presented for discussion is one of the recent solar farm projects which was
               installed at Semitropic Water District (SWD), located at Wasco, California, approxi-
               mately 150 miles northeast of Los Angeles. The 550 ft × 38 ft land provided by SWD
               is relatively flat, with no trees, and thus required minimal grading and brush clearing.
               As shown in Figure 5.17, PV arrays movement rotational axels are mounted in a north
               south orientation.


               MECHANICAL DESCRIPTION
               The PV array design for the single-axis tracking system was based upon the use of 7200
               Shell Solar Industries model SQ-160 modules, which were assembled into 1800 panels.




































                 Figure 5.17  Aerial view of solar farming system, Semitropic
                 Water District, Wasco, California. Photo courtesy of SolarWorld.
   162   163   164   165   166   167   168   169   170   171   172