SkyTrough® parabolic trough concentrating solar power collectors continues to operate with the high efficiency forecast by NREL.
A loop of SkyTrough® parabolic trough concentrating solar power collectors, commissioned at Solar Energy Generating Station (SEGS) II in Daggett, California on January 1, 2010, continues to operate with the high efficiency forecast by National Renewable Energy Lab (NREL) tests. Engineering firm Sargent & Lundy used over 100,000 data points to compare actual SkyTrough® performance to that indicated by NREL’s tests, concluding that "the thermal output of SkyTrough® solar collector assemblies (SCAs) can be expected to achieve the predicted levels."
Sargent & Lundy visited the site, reviewed the test methodology, daily performance data, instrumentation, and engineering drawings. The average measured thermal output for the 24 days of data collection was 978 kW — 2% more than predicted by the model. In their report, Sargent & Lundy stated "overall, it is