Interested in a PV modeling tool that is customizable, flexible, and powerful? Sandia National Laboratories has developed the PV_LIB Toolbox of PV modeling functions (currently in Mathworks’ MATLAB®), and is providing the library at no cost to PV Performance Modeling Collaborative members. PV_LIB functions are open to viewing and provide a great way to deeply…Details
Lauren Ngan et al. from First Solar presented a great poster at the 39th IEEE PV Specialists Conference in Tampa, FL on how “true” single axis tracking (without backtracking) produced more energy for First Solar arrays than the use of backtracking, which avoids row-to-row shading. As part of her study, she and her coauthors discovered…Details
The New York Times published an interesting article about module reliability and degredation problems, quoting several PVPMC members. The article can be seen here: http://nyti.ms/16nXR7p. One interesting and relevant fact cited is a study by Meteocontrol of 30,000 PV systems in Europe, which found that 80% of these systems are underperforming expectations. This finding indicates to…Details
The presentations from the 2013 PV Performance Modeling Workshop are now available for download. A link to the workshop is available at https://pvpmc.sandia.gov/events/ You can also directly access the workshop page here. Please note that you will need to login to the pvpmc.sandia.gov site in order to download documents. If you are not logged in,…Details
The 2nd PV Performance Modeling Workshop was held on May 1-2 in Santa Clara, CA. The event was well attended with about 150 attendees from North America and Europe and the feedback we received has been very positive. Workshop attendees learned about advances in in PV performance models and modeling practice from industry experts (late…Details
The wide variety of PV system technologies and designs, site conditions, and operations strategies means that complex PV system performance models are needed to represent PV plant performance. While PV component and system costs are rapidly falling, the upfront costs of PV (before any energy is generated) remain high. Sandia National Laboratories’ scientists, Joshua Stein…Details
I have been trying to publish new pages in the modeling steps nearly every day. Some of the new pages include: reflective loss models, the Sandia Module IV model, diffuse radiation models, and some pages on irradiance components, AOI, etc. Check back frequently for updates. Please feel free to send me any content you want…Details
Sandia modeling team was featured in a Photon article entitled: Designing a Better Crystal Ball in the April 2012 issue. It described research at Sandia that is developing methods to estimate high frequency (e.g., 1-min) power output from utility-scale plants using a single irradiance sensor.