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Sandian Contributes to Western Electricity Coordinating Council Photovoltaic Power Plant Model Validation Guideline

Utility-scale PV systems connected to the transmission network must comply with NERC modeling, data, and analysis standards. WECC’s new “Central Station Photovoltaic Power Plant Model Validation Guideline” helps them with this requirement. (Photo credit: Ceinturion, Creative Commons 3.0) As part of the Western Electricity Coordinating Council’s (WECC’s) Modeling and Validation Work Group, Sandia [...]

Navy/Marine Engineering Command Visits Sandia

Our nation relies upon a network of radars across the country to support the missions of homeland defense/ security, flight safety, and weather forecasting. The air-surveillance environment contains within it clutter, both stationary and moving. Wind turbines present a unique problem in that they can be both stationary and moving clutter and operate with [...]

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 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 |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

Combining ‘Tinkertoy’ Materials with Solar Cells for Increased Photovoltaic Efficiency

Sandia researchers have received a $1.2M award from the DOE’s SunShot Initiative to develop a technique that they believe will significantly improve photovoltaic (PV) materials efficiency and help make solar electricity cost-competitive with other energy sources. Sandia researcher Vitalie Stavila inserts a substrate patterned with electrodes into a temperature-controlled liquid-phase reactor for depositing MOF thin [...]

By |December 4th, 2014|Energy, Materials Science, News, News & Events, Photovoltaic, Renewable Energy, Research & Capabilities, Solar|Comments Off on Combining ‘Tinkertoy’ Materials with Solar Cells for Increased Photovoltaic Efficiency

Solar Glare Hazard Analysis Tool Available for Download

Sandia developed the Solar Glare Hazard Analysis Tool (SGHAT), a web-based tool that predicts energy production and the potential for solar glare and ocular impacts from an array of photovoltaic (PV) panels. Glare viewed from the air traffic control tower at Manchester/Boston Regional Airport. SGHAT uses an interactive Google Maps interface together with [...]

By |March 13th, 2014|Energy, News, News & Events, Photovoltaic, Renewable Energy, Solar, Solar Newsletter|Comments Off on Solar Glare Hazard Analysis Tool Available for Download

Sandia-Electric Power Research Institute Partnership Publishes Photovoltaic Reliability Report

Total Maintenance Actions per Component. This “button” chart shows the total number of maintenance actions across all system components per month. Color coding is used to differentiate each component. [Note: CTRLBRD = Inverter Control Board; CRTLSW = Inverter Control Software; CPS = Inverter Control Power Supply; CYL = hydraulic cylinder; DAS = Data Acquisition [...]

By |January 21st, 2014|Energy, Facilities, Grid Integration, Modeling & Analysis, News, News & Events, Photovoltaic, Photovoltaic Systems Evaluation Laboratory (PSEL), Renewable Energy, Solar, Solar Newsletter, Systems Analysis|Comments Off on Sandia-Electric Power Research Institute Partnership Publishes Photovoltaic Reliability Report

Sandia R&D Funded under New DOE SunShot Program

On October 22, the Department of Energy announced $60M in new awards to drive affordable, efficient so­lar power. The SunShot Physics of Reliability: Evaluating Design Insights for Component Technologies in Solar (PREDICTS) program is taking a physics- and chemistry-based approach to identifying solar product failure modes. Module-level (~200 W) power electronics (MLPE), such as microinverters, microconverters, [...]

By |November 27th, 2013|Energy, News, News & Events, Partnership, Photovoltaic, Renewable Energy, Solar, Systems Analysis, Systems Engineering|Comments Off on Sandia R&D Funded under New DOE SunShot Program

Launch of Solar Testing Site in Vermont

Sandia's Steve Rottler delivers his remarks at the groundbreaking ceremony for the DOE-funded photovoltaic Regional Test Center (RTC) on the IBM campus in Williston, Vermont. U.S. Senator Bernie Sanders (I-VT) joined representatives of Sandia, IBM, and the DOE in early November to announce the launch of the Vermont Photovoltaic Regional Test Center (RTC). [...]

By |November 27th, 2013|Energy, Facilities, News, News & Events, Partnership, Photovoltaic, Photovoltaic Regional Testing Center (PV RTC), Renewable Energy, Solar, Solar Newsletter, SunShot|Comments Off on Launch of Solar Testing Site in Vermont