Solar Energy

Sandian Selected for Outstanding Engineer Award

The Institute of Electrical and Electronics Engineers (IEEE) Region 6: Southwest Area (encompassing New Mexico, Arizona, California, and Nevada) has selected Dr. Jose Luis Cruz-Campa (in Sandia’s MEMS* Technologies Dept.) as the recipient of their 2014 Outstanding Engineer Award for his “critical technical and leadership contributions to the development of microsystems-enabled PV (MEPV) technology and […]

By |December 10th, 2014|Energy, Materials Science, News, News & Events, Photovoltaic, Renewable Energy, Research & Capabilities, Solar|Comments Off on Sandian Selected for Outstanding Engineer Award

ECIS-Princeton Power Systems, Inc.: Demand Response Inverter

Solar energy is both predictable—the sun rises and sets everyday—and intermittent—a passing cloud can reduce a 1 MW photovoltaic (PV) array from 100% of its power generating capacity to 10% in a matter of seconds. This intermittency limits this renewable-energy (RE) source and how much of it is integrated into today’s electricity grid.

To alleviate this […]

By |March 19th, 2013|DETL, Distribution Grid Integration, Energy, Energy Surety, Facilities, Grid Integration, Infrastructure Security, Microgrid, Partnership, Photovoltaic, Renewable Energy, Research & Capabilities, Solar|Comments Off on ECIS-Princeton Power Systems, Inc.: Demand Response Inverter

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

Pratt Whitney Rocketdyne Testing

On November 24, 2012 the National Solar Thermal Test Facility (NSTTF) began testing of the Pratt Whitney Rocketdyne (PWR) solar receiver shroud.  Fifteen days of solar testing are scheduled for this testing.  The flux levels on the shroud range between 100 and 500 suns.  The work is sponsored by PWR in cooperation with the Department […]

By |December 19th, 2012|Concentrating Solar Power, EC, Energy, Facilities, National Solar Thermal Test Facility, News, News & Events, Partnership, Renewable Energy, Solar, Solar Newsletter|Comments Off on Pratt Whitney Rocketdyne Testing

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

Inverter Reliability Program

As scientists and engineers improve the durability of photovoltaic (PV) modules, the inverter system, which converts the harvested energy into power usable by the grid, becomes the next emerging challenge in the reliability of the PV system.   Addressing these issues represents a difficult task to both the PV and power systems communities for the following […]

By |December 18th, 2012|Comments Off on Inverter Reliability Program

Molten Nitrate Salt Initial Flow Testing is a Tremendous Success

 

The Molten Salt Test Loop (MSTL ) system at Sandia National Laboratories’ National Solar Thermal Test Facility (NSTTF) completed initial flow testing this week with great success.  The system pumped molten nitrate salt through a range of process conditions and showed performance characteristics that meet or exceed the design specifications.  The outstanding system performance was the […]

By |November 2nd, 2012|Concentrating Solar Power, News, Renewable Energy, Solar|Comments Off on Molten Nitrate Salt Initial Flow Testing is a Tremendous Success

Molten Salt Test Loop Melted Salt

The Molten Salt Test Loop (MSTL) team at Sandia National Laboratories melted 38 tonnes (84,000 pounds) of salt and filled the furnace of the MSTL system this week.  The salt melting was the culmination of many weeks of planning and preparation from a great team that assessed the hazards, planned the activities, modified the salt […]

By |October 10th, 2012|Concentrating Solar Power, Energy, News, Renewable Energy, Solar|Comments Off on Molten Salt Test Loop Melted Salt