2026 21st PV Performance Modeling Workshop Albuquerque, New Mexico USA
Day 1: Tuesday May 12, 2026
1. Irradiance Modeling
Session Chair: Joshua S. Stein, Sandia National Laboratories
| Solar Resource Measurements and Site Adaptation (255 downloads ) | Nate Croft | GroundWork Renewables | |
| Evaluation of Decomposition–Transposition Methods for POA Irradiance Estimation in Tropical High-Cloudiness Conditions Using High-Resolution Field Measurements (122 downloads ) | Erick Cepeda | Ingeniería Creativa – ICREA and Universidad Nacional de Colombia | |
| Uncertainty evaluation of PR measurement with focus on meteorological parameters (129 downloads ) | Kees van den Bos | Hukx |
2. Modeling Single Axis Trackers
Session Chair: Kevin Anderson, Sandia National Laboratories
| Thermal-Aware Single-Axis Tracking: Reducing PV Module Temperature and UV Exposure Without Sacrificing Yield (159 downloads ) | Robinson Cavieres | The University of New South Wales | |
| A Workflow to Analyze the Impact of Terrain Undulations on Energy Yield for Different Motor Block Sizes (116 downloads ) | Umay Akkoseoglu | DNV | |
| Probabilistic reconstruction of unknown tracker angles for sub-hourly loss quantification (89 downloads ) | Thore Müller | PVRADAR Labs GmbH | |
| A framework for improving wind stow models with field validation (132 downloads ) | Justin Roelant | Array Technologies Inc. |
3. Poster Session 1
Expand to list posters
4. PV Performance Model Development
Session Chair: Janine Keith, National Laboratory of the Rockies
| Low Breakdown Voltage Cell in Pvsyst (120 downloads ) | Bruno Wittmer | PVsyst SA | |
| Application of the Intrinsic-Adjusted Single Diode Model to Production Data (85 downloads ) | Phillip Hamer | The University of New South Wales | |
| PVCollada: A Schema for Exchange of Digital PV System Design Data (125 downloads ) | Clifford Hansen | Sandia National Laboratories |
5. Modeling PV + Battery Systems
Session Chair: Balamurali Rammohan, Arevon Energy
| Sizing DC-Coupled Utility-Scale BESS Using a Charging Reliability Metric Under High Curtailment Conditions (97 downloads ) | Andres Fernandez | Ingeniería Creativa – ICREA | |
| Gaps in PV-Coupled Battery Modeling (97 downloads ) | Janine Keith | National Laboratory of the Rockies (NLR) | |
| Combined Lost Energy and Fault Analysis for DC-Coupled PV+BESS (91 downloads ) | Nicholas Ward | AES Clean Energy | |
| PV + Li-Ion BESS: Modeling & Evaluation of Energy Arbitrage & Ancillary Service Use Cases (74 downloads ) | Richard Holz | Bechtel Corporation |
Day 2: Wednesday, May 13, 2026
6. Key Performance Indicators
Session Chair: Marios Theristis, Sandia National Laboratories
| Updates from the PV O&M Analytics Collaborative (PVMAC) (162 downloads ) | Marios Theristis | Sandia National Laboratories | |
| Reliable and Actionable Performance Metrics for Heavily Curtailed Plants (110 downloads ) | Gofran Chowdhury | 3E | |
| O&M KPIs: You get what you pay for (152 downloads ) | Kevin Anderson | Sandia National Laboratories | |
| Introduction to the Energy Accounting Workgroup (103 downloads ) | Dan Leary | Denowatts | |
| How spectral effects impact capacity testing - a case study (133 downloads ) | Keith McIntosh | PV Lighthouse and Kiewit Engineering |
7. Closing the Loop from Operations to Design
Session Chair: Rhonda Bailey, RB RE Consulting LLC
| Interpreting Field Data from Five Utility-Scale PV Projects (266 downloads ) | Graham Gallop | Mortenson | |
| Understanding discrepancies in module degradation and performance loss rate (113 downloads ) | Norman Jost | Sandia National Laboratories | |
| Quantifying Losses and Failure Rates in Large-Scale PV Fleets with the SUPER Benchmarking Tool (83 downloads ) | Daniel Fregosi | EPRI (Electric Power Research Institute) |
8. Poster Session 2
Expand to list posters
9. Model Validation
Session Chair: Sha Li, Leeward Renewable Energy
| Comparative analysis: Validating PV simulation uncertainty against field measurements (116 downloads ) | Tomas Cebecauer | Solargis | |
| Evaluating Error Propagation Across the Photovoltaic Modeling Pipeline Through Blind Modeling (86 downloads ) | Lelia Deville | University of Louisiana at Lafayette | |
| Validation with PV plant data and updates of the 3D energy yield calculation model for the RatedPower software (87 downloads ) | Félix Ignacio Pérez Cicala | Rated Power |
10. Uncertainty
Session Chair: Clifford Hansen, Sandia National Laboratories
Day 3: Thursday, May 14, 2026
11. Forecasting
Session Chair: Andres Calcabrini, PVcase
| How Hybrid Forecasting Improves Earnings of Utility Scale Energy Assets (87 downloads ) | Juergen Sutterlueti | Gantner Instruments | |
| Reducing Month-Ahead PV Yield Uncertainty (88 downloads ) | Marc Perez | Clean Power Research |
12. Modeling Tool Updates 1
Session Chair: Amir Asgharzadeh Shishavan, Nextpower
| pvcaptest Evolves: Streamlined Bifacial Tests (80 downloads ) | Ben Taylor | Tailored Data Consulting | |
| Updates on the National Solar Radiation Data Base (NSRDB) (126 downloads ) | Yu Xie | National Laboratory of the Rockies (NLR) | |
| What’s New in System Advisor Model (79 downloads ) | Janine Keith | National Laboratory of the Rockies (NLR) |
13. Modeling Tool Updates 2
Session Chair: Kendra Conrad, Array Technologies
| Browser-Based, High-Fidelity PV Plant Modeling with High-Resolution Terrain (80 downloads ) | Tomas Sasko | Solargis | |
| Updates and future developments in PVsyst (118 downloads ) | Robin Vincent | PVsyst SA | |
| SolarFarmer: Latest developments and insights (83 downloads ) | Javier Lopez-Lorente | DNV | |
| PlantPredict: Model Updates and Roadmap (102 downloads ) | Jason Spokes | Terabase |
