Photovoltaics

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

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 our […]

By |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

Sandian Selected for Outstanding Young Engineer Award

The Albuquerque Section of the Institute of Electrical and Electronics Engineers (IEEE) has selected Dr. Jose Luis Cruz-Campa as the recipient of the 2014 Outstanding Young Engineer Award for his outstanding con­tributions to the electrical engineering profession. A key aspect of Jose Luis’ research program is the use of microfabrication techniques, more commonly used in […]

By |June 4th, 2014|Energy, News, News & Events, Photovoltaic, Renewable Energy, Solar|Comments Off on Sandian Selected for Outstanding Young Engineer Award

New Jersey Transit FutureGrid MOU Signing

In late August, DOE Secretary Moniz and New Jersey Governor Christie signed an memorandum of understanding (MOU) over grid modernization, which establishes a relationship between the U.S. Department of Energy, New Jersey Transit Corporation, and the New Jersey Board of Public Utilities (BPU) to explore the design, possible construction, and future implementation of an advanced […]

By |October 4th, 2013|Analysis, Energy Surety, Infrastructure Security, Microgrid, Modeling, Modeling & Analysis, News, News & Events, Partnership, SMART Grid|Comments Off on New Jersey Transit FutureGrid MOU Signing

Sandia Labs, Front Edge Technology, Inc., Pacific Northwest National Lab, Univ. of California–Los Angeles: Micro Power Source

What if the batteries had the ability to recharge themselves? Just as on rooftops, a PV surface could convert the sunlight to electricity to charge the storage device.

Sandia, working with Pacific Northwest National Laboratory (PNNL) and University of California at Los Angeles (UCLA), has developed the Micro Power Source, a system that integrates a lithium-ion-based […]

By |March 20th, 2013|Energy Storage Systems, Materials Science, Partnership, Research & Capabilities|Comments Off on Sandia Labs, Front Edge Technology, Inc., Pacific Northwest National Lab, Univ. of California–Los Angeles: Micro Power Source

ECIS, Lockheed Martin Aeronautics, University of New Mexico, and Davidson College: Multifunctional Optical Coatings by Rapid Self-Assembly

Optical coatings appear on items ranging from electronic devices, photographic lenses, and windows to aircraft sensors, photovoltaic cells, and goggles for troops in the field. The coatings protect or alter the way a material reflects and/or transmits light. However, the two primary methods of applying coatings—sputtering and chemical vapor deposition (CVD)—are expensive, require highly specialized […]

By |March 19th, 2013|Advanced Materials Laboratory, Capabilities, Facilities, Materials Science, Partnership, Research & Capabilities|Comments Off on ECIS, Lockheed Martin Aeronautics, University of New Mexico, and Davidson College: Multifunctional Optical Coatings by Rapid Self-Assembly

ESTAP Webinar: Briefing on Sandia’s Maui Energy Storage Study

March 6, 2013
14:00 — 15:00 Eastern
The Energy Storage Technology Advancement Partnership project of the Clean Energy States Alliance (CESA) and the Department of Energy is presenting a webinar featuring a case study conducted by Sandia National Laboratory on the Island of Maui and its goals of increasing its renewable energy capacity and the role of […]

By |March 6th, 2013|EC, Energy, News, Photovoltaic, Renewable Energy, Solar|Comments Off on ESTAP Webinar: Briefing on Sandia’s Maui Energy Storage Study

Sandia Report Offers Reliable Way to Evaluate Unintentional Islanding Risk

A recently released Sandia National Laboratories report, “Suggested Guidelines for Assessment of DG Unintentional Islanding Risk,” outlines a procedure to help utility distribution engineers determine the risk of unintentional islanding in distributed energy generation installations. By providing a quick and reliable way to identify situations in which such risk is negligible, Sandia’s approach can help […]

By |February 28th, 2013|DETL, Distribution Grid Integration, Energy, Energy Assurance, Energy Surety, Events, Grid Integration, Infrastructure Security, Microgrid, News & Events, Photovoltaic, Renewable Energy, Research & Capabilities, Solar, Solar Newsletter, SunShot|Comments Off on Sandia Report Offers Reliable Way to Evaluate Unintentional Islanding Risk

Goal 2: Development of Prognostics and Health Management

Degradation Signature Characterization
The data from the characterization of parts before and after stress testing will be analyzed for useful fingerprints that indicate degradation and remaining lifetime. One approach is to apply the characterization results to simulations to look for corresponding changes in behavioral parameters of the inverters. Figure 1 describes one potential behavioral parameter, voltage […]

By |December 18th, 2012|Comments Off on Goal 2: Development of Prognostics and Health Management

Goal 1: Degradation Study of Components and Subsystems

Thermal Management Subsystem
Thermal management of inverter systems and internal components is critical for ensuring lasting performance reliability. Research is currently being carried out to more accurately characterize inverter components and system topologies of varying scales. This work includes:

Thermal/fluid phenomena of internal inverter components, and their impact on electrical performance and reliability.

Finite Element Analysis (FEA)/Computational Fluid […]

By |December 18th, 2012|Comments Off on Goal 1: Degradation Study of Components and Subsystems