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Modeling Guide
Weather and Design
Sun Position
Solar Position Algorithm (SPA)
Basic Solar Position Models
Sandia’s Ephemeris Model
Irradiance & Insolation
Extraterrestrial Radiation
Air Mass
Direct Normal Irradiance
Piecewise Decomposition Models
DIRINT Model
Global Horizontal Irradiance
Diffuse Horizontal Irradiance
Spectral Content
AM 1.5 Standard Spectrum
Weather Data Sources for Performance Modeling
Global Normal Spectral Irradiance Dataset from Albuquerque
Weather Observations
Air Temperature
Wind Speed and Direction
Precipitation
Air Pressure
Array Orientation
Fixed Tilt
Single Axis Tracking
Two-Axis Tracking
Array Orientation Errors
Effect of Array Tilt Errors
Effect of Array Azimuth Errors
Plane of Array (POA) Irradiance
Calculating POA Irradiance
POA Beam
Angle of Incidence
POA Ground Reflected
POA Sky Diffuse
Shading, Soiling, and Reflection Losses
Incident Angle Reflection Losses
Physical IAM Model
ASHRAE IAM Model
Martin and Ruiz IAM Model
Sandia IAM Model
Soiling Losses
Kimber Soiling Model
HSU Soiling Model
DC Module IV Characteristics
Module Temperature
Sandia Module Temperature Model
Faiman Module Temperature Model
Cell Temperature
Sandia Cell Temperature Model
PVsyst Cell Temperature Model
NOCT Cell Temperature
Fuentes Cell Temperature
Effective Irradiance
Spectral Response
Spectral Mismatch Definition
Spectral Mismatch Models
Single Diode Equivalent Circuit Models
De Soto “Five-Parameter” Module Model
PVsyst Module Model
Point-value models
Sandia PV Array Performance Model
Loss Factor Model
PVWatts
Improvements to PVWatts
DC Array IV
Mismatch Losses
DC Component Health
DC Wiring Losses
Array Utilization
DC to AC Conversion
CEC Inverter Test Protocol
Operating Temperature
Sandia Inverter Model
Driesse Inverter Model
Inverter Saturation or “Clipping”
Loss of Grid
Advanced Inverter Features
AC System Output
AC Wiring Losses
PV Performance Metrics
Performance Ratio
Normalized Efficiency
Performance Index
Annual Yield
Datasets
All Datasets
Global Normal Spectral Irradiance Dataset from Albuquerque
PV Lifetime Module Characterization Datasets
IEA PVPS Task 13: Module validation dataset
Module Operating Temperature Dataset
2021 Blind PV Modeling Comparison
Solar Variability Zones
Model Validation
2023 IEA Bifacial Tracking Modeling Exercise
2023 PVPMC Blind Modeling Comparison
Model Validation Procedure
Tools
All Tools
PV_LIB Toolbox
PVAnalytics
Wavelet Variability Model
WVM Discrete Point Example
Polygon Vertices to Define Plant Footprint Example
WVM Square Plant Example
GridPV Toolbox
PV Degradation Modeling
Workshops & Publications
Workshops
2024 High Latitude PV Workshop
2023 PVPMC – Mendrisio, Switzerland
2023 PVPMC – Salt Lake City
2022 PVPMC – Salt Lake City
2020 PVPMC Webinars
2019 PVPMC – Kunshan, China
2019 PVPMC – Albuquerque
2019 PVPMC – Albuquerque – Grid Track
2018 PVPMC – Weihai, China
2018 PVPMC – Albuquerque
2018 PVPMC – Albuquerque – Grid Integration Track
2017 PVPMC – Weihai, China
2017 PVPMC – Santa Anna Pueblo
2017 PVPMC – Lugano, Switzerland
2016 PVPMC – Freiburg, Germany
2016 PVPMC – Santa Clara
2016 PVPMC – Santa Clara – Grid Track
2015 PVPMC – Cologne, Germany
2014 PVPMC – Santa Clara
2014 Bifacial PV Workshop, Chambery
2013 PVPMC – Santa Clara
IEA PVPS Task 13 Reports
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