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Sandia Researcher Recognized at SunSpec Alliance Annual Meeting

Sandia solar researcher Jay Johnson (in Sandia’s Photovoltaics and Distributed Systems Dept.) attended the SunSpec Alliance Annual Member’s Meeting in San Francisco last Spring and received the 2015 SunSpec McCulloch-Pitts Award in recognition of “innovation, collaboration, and general technical excellence in the area of distributed energy resource control automation.” The award acknowledged Johnson’s collaborative research [...]

Sandia’s Continuously Recirculating Falling-Particle Receiver Emplaced at Top of Solar Tower

Sandia researchers are working to lower the cost of solar energy systems and improve efficiencies in a big way, thanks to a system of small particles. Technologists John Kelton and Daniel Ray (both in Sandia’s Concentrating Solar Technologies Dept.) perform inspection of the falling-particle receiver during a cloud delay atop the NSTTF’s Solar Tower [...]

Sandians Win ‘Best Paper’ Award at Photovoltaic Conference in Japan

A research team that included Sandians Clifford Hansen and Joshua Stein (in Sandia’s Photovoltaic & Distributed Systems Integration Dept.) and Katherine Klise (in Sandia’s Geotechnology and Engineering Dept.) received a Best Paper Award for their work “Photovoltaic System Model Calibration Using Monitored System Data,” presented at the 6th World Conference on Photovoltaic Energy Conversion (WCPEC) [...]

Sandia Research on PV Arc-Fault Detection Submitted for US Patent

Different types of parallel arc-faults on the DC side of a PV array. Sandia National Laboratories/Tigo Energy researchers recently submitted an application for a US patent related to research on arc-fault detection and circuit interruption in solar photovoltaic (PV) systems. Sandia’s patent-pending methods, filed as Identifying an Arc-Fault Type in Photovoltaic Arrays, allow [...]

PV Plant Performance Technical Briefing Published in PV Power Tech

The state of the art in PV system monitoring is relatively simplistic, relying either on comparisons of outputs between various parts of the system (e.g., inverters) or on an evaluation of a performance metric that normalizes output to available irradiance and other environmental conditions. However, neither of these methods is very effective in discovering the source [...]

By | 2017-10-16T20:05:43+00:00 March 4th, 2015|Computational Modeling & Simulation, Energy, Facilities, News, News & Events, Photovoltaic, Photovoltaic Systems Evaluation Laboratory (PSEL), Renewable Energy, Solar, Solar Newsletter, SunShot|Comments Off on PV Plant Performance Technical Briefing Published in PV Power Tech

SolarReserve Is Testing Prototype Heliostats at NSTTF

SolarReserve is testing engineering units at the National Solar Thermal Test Facility (NSTTF) operated by Sandia. The company says it decided to test its prototype heliostats at NSTTF because of Sandia’s, “knowledge and reputation in the solar industry, as well as the breadth of resources available for improving and testing new designs.” SolarReserve is focused [...]

By | 2016-12-02T18:48:16+00:00 March 3rd, 2015|Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, News & Events, Partnership, Renewable Energy, Solar, Solar Newsletter|Comments Off on SolarReserve Is Testing Prototype Heliostats at NSTTF

Sandian Presents on PV Failure Analysis at European PV Solar Energy Conference and Exhibition (EU PVSC)

PV fault detection/monitoring system using machine-learning algorithms. A learning algorithm is trained to estimate power production based on meteorological data (irradiance, temperature, wind speed, etc.). This predic-tion is then compared to the actual power to detect various faults. Current research is focused on distinguishing different fault signatures. (Figure from Riley and Johnson, 2012) [...]

By | 2016-12-02T18:48:19+00:00 December 15th, 2014|Computational Modeling & Simulation, Energy, Facilities, News, News & Events, Partnership, Photovoltaic, Photovoltaic Regional Testing Center (PV RTC), Photovoltaic Systems Evaluation Laboratory (PSEL), Renewable Energy, Solar, Solar Newsletter, SunShot, Systems Analysis|Comments Off on Sandian Presents on PV Failure Analysis at European PV Solar Energy Conference and Exhibition (EU PVSC)

Sandian Recognized as a Top Professional in Energy

Sandia’s Kenneth Armijo (in the Photovoltaic & Distributed Systems Integration Dept.) was recognized in Hispanic Engineer and Information Technology magazine’s Fall 2014 issue as a “top professional in energy” in their article, “Where Does the Energy Sector Find Its Next-Gen Stars?” Dr. Armijo is a research scientist who holds a Ph.D. in Mechanical Engineering from [...]

By | 2016-12-02T18:48:19+00:00 December 15th, 2014|Computational Modeling & Simulation, Energy, Facilities, News, News & Events, Photovoltaic, Photovoltaic Systems Evaluation Laboratory (PSEL), Renewable Energy, Solar, Solar Newsletter, SunShot|Comments Off on Sandian Recognized as a Top Professional in Energy

PV Performance Modeling Collaborative’s New and Improved Website Is Launched

The PV Performance Modeling Collaborative (PVPMC) is excited to announce the launch of our newly redesigned Web site located at the new address: https://pvpmc.sandia.gov. The new site’s homepage welcomes visitors with a clean uncluttered design, with featured content focused on our mission to provide you with the most accurate information, strengthen partner relations, and share [...]

By | 2016-12-02T18:48:22+00:00 December 10th, 2014|Computational Modeling & Simulation, Energy, Facilities, News, News & Events, Partnership, Photovoltaic, Photovoltaic Systems Evaluation Laboratory (PSEL), Renewable Energy, Solar, Solar Newsletter, Systems Analysis|Comments Off on PV Performance Modeling Collaborative’s New and Improved Website Is Launched

Solar Regional Test Center in Vermont Achieves Milestone Installation

Dr. Danielson and Sen. Sanders attend ribbon-cutting ceremony to commemorate the newly installed PV arrays at the Williston, Vermont, RTC site. The solar industry is now more than 60% of the way toward achieving the DOE SunShot Initiative affordability goal of $0.06 per kilowatt-hour for solar electricity. Meeting the last 40% without compromising [...]