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 (4565 downloads) Joshua SteinSandia National Laboratories
Summary of Previous Workshop (4566 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 (4587 downloads) Bradley HibberdBorrego Solar
Generating Module Coefficients for Sandia Array Performance Model (4413 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 (3299 downloads)
Black & Veatch PAN File CREATION Service (2944 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 (3044 downloads) Ken SauerYingli Green Energy Americas

Module Models (2) 3:00 pm

Changes in Module Performance Coefficient Generation for PVsyst Version 6 (4731 downloads) André MermoudPVsyst
Generating Module Coefficients: Blind Study Results (4590 downloads) Cliff HansenSandia National Laboratories
Performance Matrices per IEC 61853 Standards: Their Importance for the Energy Estimation Models (4497 downloads) Mani G. TamizhManiASU PRL and TUV Rheinland PTL
The Sensitivity and Limitations of Present and Alternative PV Models (4321 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 (4101 downloads) Paul GranaFolsom Labs
PVSim (4174 downloads) Ben BourneSunPower Corporation
System Advisor Model  (SAM) (4166 downloads) Aron Dobos and Nate BlairNational Renewable Energy Laboratory
PV*SOL Expert (4060 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 (3514 downloads) Thomas StoffelNational Renewable Energy Laboratory
Reducing Solar Resource Error Through On-Site Monitoring (3840 downloads) Marie SchnitzerAWS Truepower
Quantifying Uncertainty in Solar Energy Estimates (4138 downloads) Kevin LangSAIC
Flexible Methods for Deriving POA Irradiance (4152 downloads) Ben BourneSunPower Corporation
Diffuse Irradiance and Backtracking in Tracker Systems (4103 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 (4169 downloads)  (Note: Both of Geoff’s presentations are merged into a single file)Geoff KliseSandia National Laboratories
Audio - Quantifying Mismatch Losses in Small Arrays (2849 downloads) Quantifying Mismatch Losses in Small ArraysSara MacAlpineUniversity of Colorado, Boulder
Shading mismatch loss calculation in PVsyst 6 (5231 downloads) André MermoudPVsyst
Mismatch Losses in HelioScope (7461 downloads) Paul GibbsFolsom Labs
Audio - Calculating Model Shading Inputs from Design Data_Tarn Yates (8551 downloads) Calculating Model Shading Inputs from Design Data (7395 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 (5205 downloads) Jeff RocheSunPower Corporation
Working with Component Based Loss Factors (5183 downloads) Paul GibbsFolsom Labs
Effects of Snowfall on PV Systems (7483 downloads) Rob AndrewsQueens University and Calama Consulting
System Loss Considerations (5237 downloads) Alex PanchulaFirst Solar

Performance Degradation

Modeling of PV Module Power Degradation to Evaluate Performance Warranty Risks (7498 downloads) Thomas RoesslerYingli Green Energy Europe
Audio - Fleet-Wide Study of System Degradation_Mike Anderson (8264 downloads) Review of SunPower Fleet-Wide System Degradation Study using Year-over-Year Performance Index Analysis (8100 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 (7494 downloads) Alex PanchulaFirst Solar
Model Validation Methodology and Results (7703 downloads) Jeff RocheSunPower Corporation
Understanding PV performance based on real world data (5767 downloads) Jürgen SutterluetiTEL Solar
Climatically Diverse Data Set for Flat-Plate PV Module Model Validations (7328 downloads) Bill MarionNational Renewable Energy Laboratory
Standards for acceptance testing and model validation (5246 downloads) Evan RileyBlack & Veatch

Discussion and Wrap-Up 4:30 pm


Closing Remarks (2013 PVPMC Workshop) (7409 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.