2013 PVPMC – Santa Clara

Wednesday, May 1

Welcome & Introduction: Why Are We Here? 1:00 pm

An overview of the workshop will be presented, along with intended outcomes, goals and next steps.

Welcome and Purpose (3663 downloads) Joshua SteinSandia National Laboratories
Summary of Previous Workshop (3663 downloads) Chris CameronIndependent Consultant

Module Models (1): Generating Performance Coefficients 1:30 pm

The selection of a module performance algorithm and associated module performance coefficients is a critical step in modeling system performance. These presentations will emphasize the process for deriving performance coefficients from test data.

User Experience with Module Performance Coefficients (3670 downloads) Bradley HibberdBorrego Solar
Generating Module Coefficients for Sandia Array Performance Model (3491 downloads) Cliff HansenSandia National Laboratories
Generating Module Coefficients for SAM/CEC n-parameter modelAron DobosNational Renewable Energy Laboratory
Audio-Black & Veatch PAN File CREATION Service (2286 downloads)
Black & Veatch PAN File CREATION Service (2022 downloads) Monali Joshi and Evan RileyBlack & Veatch
Systematic Approaches to Ensure Correct Representation of Measured Multi-Irradiance Module Performance in PV System Energy Production Forecasting Software Programs (2109 downloads) Ken SauerYingli Green Energy Americas

Module Models (2) 3:00 pm

Changes in Module Performance Coefficient Generation for PVsyst Version 6 (3802 downloads) André MermoudPVsyst
Generating Module Coefficients: Blind Study Results (3666 downloads) Cliff HansenSandia National Laboratories
Performance Matrices per IEC 61853 Standards: Their Importance for the Energy Estimation Models (3588 downloads) Mani G. TamizhManiASU PRL and TUV Rheinland PTL
The Sensitivity and Limitations of Present and Alternative PV Models (3397 downloads) Steve RansomeSRCL

PV System Performance Models 7:00 pm

Developers of system models will present overviews or demonstrations of their models.

PVsyst (Note: This was a live demonstration of the software, no file)André MermoudPVsyst
HelioScope (3189 downloads) Paul GranaFolsom Labs
PVSim (3242 downloads) Ben BourneSunPower Corporation
System Advisor Model  (SAM) (3240 downloads) Aron Dobos and Nate BlairNational Renewable Energy Laboratory
PV*SOL Expert (3151 downloads) Bernhard GatzkaValentin Software

Thursday, May 2

Solar Resource Data 8:00 am

The expected solar resource at a site is critical to establishing project viability. This session will present methods to reduce project risk by addressing bias and uncertainty in solar resource data.

A Review of Measured/Modeled Solar Resource Uncertainty (2589 downloads) Thomas StoffelNational Renewable Energy Laboratory
Reducing Solar Resource Error Through On-Site Monitoring (2934 downloads) Marie SchnitzerAWS Truepower
Quantifying Uncertainty in Solar Energy Estimates (3234 downloads) Kevin LangSAIC
Flexible Methods for Deriving POA Irradiance (3215 downloads) Ben BourneSunPower Corporation
Diffuse Irradiance and Backtracking in Tracker Systems (3185 downloads) Bodo LittmanFirst Solar

System Losses and Derates 10:15 am

Estimates of system losses vary greatly among models and modelers. This session will seek to improve our understanding of system losses and the means of modeling them.

Draft Definitions of System Loss Factors (3261 downloads)  (Note: Both of Geoff’s presentations are merged into a single file)Geoff KliseSandia National Laboratories
Audio - Quantifying Mismatch Losses in Small Arrays (1835 downloads) Quantifying Mismatch Losses in Small ArraysSara MacAlpineUniversity of Colorado, Boulder
Shading mismatch loss calculation in PVsyst 6 (4240 downloads) André MermoudPVsyst
Mismatch Losses in HelioScope (5381 downloads) Paul GibbsFolsom Labs
Audio - Calculating Model Shading Inputs from Design Data_Tarn Yates (6638 downloads) Calculating Model Shading Inputs from Design Data (5312 downloads) Tarn YatesBorrego Solar

System Losses and Derates (continued) 12:45 pm

Panel Discussion: System Losses and Derates

System Losses and Derates in PVSim: Balance of System Loss Modeling (4228 downloads) Jeff RocheSunPower Corporation
Working with Component Based Loss Factors (4193 downloads) Paul GibbsFolsom Labs
Effects of Snowfall on PV Systems (5379 downloads) Rob AndrewsQueens University and Calama Consulting
System Loss Considerations (4247 downloads) Alex PanchulaFirst Solar

Performance Degradation

Modeling of PV Module Power Degradation to Evaluate Performance Warranty Risks (5302 downloads) Thomas RoesslerYingli Green Energy Europe
Audio - Fleet-Wide Study of System Degradation_Mike Anderson (6322 downloads) Review of SunPower Fleet-Wide System Degradation Study using Year-over-Year Performance Index Analysis (6032 downloads) Mike AndersonSunPower Corporation
Standardizing Definitions: Survey Results and Inputs to the Working Group (Available as part of previous presentation file from Geoff Klise in System Derates)Geoff KliseSandia National Laboratories

Modeling for the Real World 3:00 pm

Modeling Needs for Performance Guarantees (5365 downloads) Alex PanchulaFirst Solar
Model Validation Methodology and Results (5597 downloads) Jeff RocheSunPower Corporation
Understanding PV performance based on real world data (4777 downloads) Jürgen SutterluetiTEL Solar
Climatically Diverse Data Set for Flat-Plate PV Module Model Validations (5197 downloads) Bill MarionNational Renewable Energy Laboratory
Standards for acceptance testing and model validation (4255 downloads) Evan RileyBlack & Veatch

Discussion and Wrap-Up 4:30 pm

Closing Remarks (2013 PVPMC Workshop) (5256 downloads)
Cliff Hansen and Joshua SteinSandia National Laboratories

Audio files are provided with the permission of the speaker.  We would like to thank Pramod Krishnani (Belectric) for making the recordings and preparing the files for distribution.