A research team that included Sandians Clifford Hansen and Joshua Stein (in Sandia’s Photovoltaic & Distributed Systems Integration Dept.) and Katherine Klise (in Sandia’s Geotechnology and Engineering Dept.) received a Best Paper Award for their work “Photovoltaic System Model Calibration Using Monitored System Data,” presented at the 6th World Conference on Photovoltaic Energy Conversion (WCPEC) held in Kyoto, Japan, in November 2014. This paper was presented at the WCPEC’s joint “Characterization and Modules Reliability” and “Systems, BOS components, and Grid Integration” session. Yuzuru Ueda (Tokyo Institute of Technology) and Keiichiro Hakuta (NTT Facilities, Inc., Japan) were also members of this research team.

Prediction – Measured maximum power point (PMP) plotted with respect to plane-of-array (POA) irradiance using the Sandia PV Array Performance Model (SAPM, top) and California Energy Commission model (CEC, bottom) for the Kyocera poly-Si (235 W) module.

Prediction – Measured maximum power point (PMP) plotted with respect to plane-of-array (POA) irradiance using the Sandia PV Array Performance Model (SAPM, top) and California Energy Commission model (CEC, bottom) for the Kyocera poly-Si (235 W) module.

Filtering for mismatched IV curves and irradiance measurements for the Sharp mono-Si module. (ISC = short-circuit current; POA = plane of array).

Filtering for mismatched IV curves and irradiance measurements for the Sharp mono-Si module. (ISC = short-circuit current; POA = plane of array).

Empirical function representing effect of spectral content on short-circuit current (ISC) for the Kyocera poly-Si module. Each point on the graph is colored according to the solar time of the measurement.

Empirical function representing effect of spectral content on short-circuit current (ISC) for the Kyocera poly-Si module. Each point on the graph is colored according to the solar time of the measurement.

WCPEC gathers researchers worldwide to discuss the most recent scientific and technological progress, industrial news, cost reductions, financial and policy issues concerning c-Si, thin-film (Si, CIGS, CdTe), III-V, and organic materials—and also in fundamentals and new materials, modules and system development, concentrators, and space applications.