2025 19th PV Performance Modeling Workshop Albuquerque, New Mexico USA

Day 1: Tuesday May 13, 2025
1. Hybrid Systems and Grid Integration
Session Chair: Juergen Sutterlueti, Gantner Instruments
PV Modeling for Grid Studies: How it’s different (36 downloads ) | Janine Keith | National Renewable Energy Laboratory | |
Reevaluating PV and Wind Power Variability Across Temporal Domains: Implications for Grid Integration (29 downloads ) | Mark Perez | Clean Power Research | |
Dynamically Curtailing PV Plants to Provide Ancillary Services (34 downloads ) | Mohit Aggarwal | BrightNight | |
Technoeconomic Modeling of Solar Energy Generation and Storage Grid Penetration (34 downloads ) | Jennifer Braid | Sandia National Laboratories |
2. PV Tracking on 3D Terrain
Session Chair: Kevin Anderson, Sandia National Laboratories
Evaluating Software for Terrain-Integrated Modelling of Single-Axis Trackers (39 downloads ) | John Moseley | Array Technologies | |
Maximizing Energy Gains in PV Tracking Systems: A Comparative Study of Advanced Backtracking Methods on Undulating Terrain (35 downloads ) | Amir Asgharzadeh Shishavan | NexTracker | |
Validation of Terrain Losses & Energy Yield Optimization: Case Study (32 downloads ) | Kerstin Lukrafka | Wood PLC |
3. Day 1 Poster Session
4. Power Plant Underperformance
Session Chair: Ann Will, GroundWork Renewables
Diagnosis of under- performing power plants using new SolarGEMINI (39 downloads ) | Clara Fernandez | DNV | |
Soiling losses From modelling to PV systems simulation (36 downloads ) | Tomas Cebecauer | Solargis | |
Identifying PV Underperformance trends with Aerial Thermography (33 downloads ) | Molly Persaud | RaptorMaps |
5. Model Validation for Bankability
Session Chair: Janine Keith, NREL
Model Validation- The Motivation for the Session (31 downloads ) | Janine Keith | National Renewable Energy Laboratory | |
Commercial Photovoltaic Modeling Software Review and Comparison (36 downloads ) | Lelia Deville | Sandia National Laboratories, University of Louisiana at Lafayette | |
Tailored Performance Models: Custom Recipes for Every Application (33 downloads ) | Imre T. Horvath | PVcase | |
When random errors are actually systematic errors (32 downloads ) | Jeff Newmiller | DNV |



Day 2: Wednesday, May 14, 2025
Introduction to the PV O&M Analytics Collaborative (PVMAC) (27 downloads ) | Marios Theristis | Sandia National Laboratories |
6. Reconciling Proforma and Expected Yield
Session Chair: Marios Theristis, Sandia National Laboratories
Harmonizing Calculations of Expected Yield (28 downloads ) | Joshua S. Stein | Sandia National Laboratories | |
iSight’s Approach to Track Expected Yield Variance (26 downloads ) | Ishtiza Azad | Southern Power Company | |
Performance Modeling of Operating Assets (27 downloads ) | Kurt Rhee | Proximal Energy | |
Expected vs. Measured: Yield assessment for utility-scale PV assets in operation (30 downloads ) | Juergen Sutterlueti | Gantner Instruments |
7. Challenges for Estimating KPIs
Session Chair: Rob van Haaren, Proximal Energy
Standardizing Inverter Availability (26 downloads ) | Abhishek Parikh | EDF Renewables | |
Assessing Tracker Availability in Utility- Scale Solar Power Plants (30 downloads ) | Gofran Chowdhury | 3E | |
O&M KPIs: Uncertainty Due to Data Loss and Operational Issues (34 downloads ) | Kevin Anderson | Sandia National Laboratories |
8. Day 2 Poster Session
9. Solar Capacity Testing: Insights and Trends
Session Chair: Jon Kalantar, DNV
Intro to the Capacity Testing Panel (28 downloads ) | Jon Kalantar | DNV | |
Capacity Testing from a Developer’s Perspective (31 downloads ) | Andrew Nurse | Invenergy | |
Capacity Testing from EPC’s Perspective: Challenges and Solutions (32 downloads ) | Jaya Mallineni | SOLV Energy | |
Irradiance Measurements for Capacity Testing (28 downloads ) | Justin Robinson | GroundWork Renewables | |
PV Capacity Testing: Sensitivity of technical choices (31 downloads ) | Jessica Forbess | Sunshine Analytics |
10. From Data to Insights: AI/ML for Predictive Fault and Underperformance Detection
Session Chair: Jaya Mallineni (Solv Energy)
Intro to AI/ML Session (22 downloads ) | Jaya Mallineni | Solv Energy | |
Beware of the black box (22 downloads ) | Julien Deckx | 3E | |
Inverter Classifier: A Boosting Model for Detecting Inverter Underperformance (23 downloads ) | Sandra Villamar | PowerFactors | |
Boosting Solar Data Analytics: Hybrid Modeling and Adaptable, Controllable Framework (29 downloads ) | Xuanji Yu | Univers | |
Automation of PV Fault Classification Using AI and ML (25 downloads ) | Neeraj Desila | SmartHelio |


Day 3: Thursday, May 15, 2025
11. Solar Resource
Improving the National Solar Radiation Data Base using PSM v4 (24 downloads ) | Manajit Sengupta | National Renewable Energy Laboratory | |
Measuring the Sun (35 downloads ) | Adam Jensen | Denmark Technical University | |
The influence of Cloud Cover on the Reliability of Satellite-based Solar Resource Data (26 downloads ) | Yu Xie | National Renewable Energy Laboratory | |
Assessment of the transportability of the coefficients of a new solar radiation decomposition model (23 downloads ) | Brighton Mabasa | University of Johannesburg |
12. Software Updates
SolarFarmer: highlights, insights and near-term plans (25 downloads ) | Javier Lopez-Lorente | DNV | |
PVsyst updates (25 downloads ) | Michele Oliosi | PVsyst SA | |
Unified and validated ray-tracing framework applied from PV cell to PV plant (23 downloads ) | Arthur Poquet | TotalEnergies | |
Validation and results of the 3D energy yield calculation model for the RatedPower software (23 downloads ) | Félix Ignacio Pérez Cicala | RatedPower | |
PlantPredict Model Updates and Roadmap (25 downloads ) | Jason Spokes | Terabase |



Afternoon Parallel Sessions
- PV Modeling Academy (11 downloads ) – Clifford Hansen
- PlantPredict Performance API / Python SDK Introduction and Demonstration (12 downloads ) – Jason Spokes
- PVRADAR Python package: Extension to pvlib for faster and easier modeling (14 downloads ) – Thore Müller
- IEC 61724 Workshop Session (14 downloads ) – Josh Horst