REC245PE PV Module PAN Report
REC Solar US LLC | REC245PE PAN FILE DEVELOPMENT REPORT
BLACK & VEATCH | Executive Summary
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Executive Summary
REC Solar US LLC (REC) contracted Black & Veatch to create a photovoltaic (PV) module
characterization file (known as a“PAN”File) for use in PVsyst energy production simulation
software for the REC245PE module. REC provided Black & Veatch with third-party test
measurements from TÜV Rheinland labs (TÜV) which quantified various performance metrics of
220W, 225W, 235W, and 240W REC modules (in a pre-LID condition) at multiple irradiance and
temperature conditions. In order to create a PAN file for the REC245PE module, Black & Veatch
scaled the test result data from a REC240PE module and utilized data from the REC245PE module
datasheet. The Optimized PAN file is to be used in PVsyst software version 5.55 for modeling the
expected performance of the REC245PE.
Black &Veatch found that the Base Case PAN file (pre-optimization) resulted in efficiency curves
that did not accurately represent the laboratory-measured efficiencies of the modules. The Base
Case efficiency curves had a corresponding root sum square (RSS) deviation of 1.94% from the
measured curves. Black & Veatch used the meteorological profile of Las Vegas, NV as a Test Case to
assess the potential impact on estimated energy production that results from differences between
the measured and Base Case efficiency curves. The Base Case PAN file underestimated expected
energy production by 3.69% when compared to measured efficiency curves for the Las Vegas
scenario. With the optimized PAN file developed by Black & Veatch, the magnitude and shape of the
efficiency curves are more accurately represented, lowering RSS deviation to 0.23% and reducing
forecasted Las Vegas energy production difference to only 0.35% below measured efficiency
curves.
The optimized PAN file is providedseparatelyasa“.PAN”file.
Note to PAN file users: This PAN file was derived from pre-LID laboratory measurements:
therefore, an additional loss for LID must be factored in to the Module Quality Loss estimate
within PVsyst.