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Sandians Joshua Stein and Bruce King Published in Photovoltaics International

April 3rd, 2013|Categories: Energy, Facilities, News, News & Events, Photovoltaic, Photovoltaic Systems Evaluation Laboratory (PSEL), Renewable Energy, Solar, Solar Newsletter, Systems Analysis|Tags: , , , , , , , , , , |

Standard steps in modeling PV plant performance (from the PV Performance Modeling Collaborative). 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. Stein & King’s (both in the Photovoltaics and Distributed Systems Dept.) [...]

Mark Boslough Featured in NOVA Special about the Chelyabinsk Meteor

April 3rd, 2013|Categories: Capabilities, Computational Modeling & Simulation, Modeling, Modeling, Modeling & Analysis, Modeling & Analysis, News, News & Events, Research & Capabilities|Tags: , , , , , , |

Scientist Mark Boslough (Discrete Mathematics and Complex Systems Dept.) was featured in NOVA’s special program ”Meteor Strike,” which aired Wednesday, March 27. The episode is about last month’s giant meteor explosion in Russia. Mark traveled to Chelyabinsk, Russia, where he performed astrometric calibrations of dashcam videos to help pinpoint the altitude and coordinates of the explosion. Sandia National Laboratories' Mark Boslough. NOVA also spent a day with him at UNM, discussing event simulations [...]

George Wang’s Invited Talk at 2013 tSSL

March 26th, 2013|Categories: Conferences, EC, Energy, Energy Efficiency, Energy Surety, Events, News, News & Events, Solid-State Lighting|Tags: , , , , , , , , , , |

SSLS scientist George Wang presented at tSSL on March 26th-27th. George Wang, a senior investigator in solid-state lighting science, was invited to speak at the 7th Taiwan Solid-State Lighting (2013 tSSL). The conference was held on March 26th-27th in Taipei, Taiwan. The purpose of tSSL is "to bring together scientists and engineers actively engaged in research, development, and manufacturing on all aspects of Solid State Lighting..." George presented before an audience of around [...]

Release of Version 1.1 of the PV_LIB Toolbox for Matlab

March 7th, 2013|Categories: Energy, Facilities, News, News & Events, Photovoltaic, Photovoltaic Systems Evaluation Laboratory (PSEL), Renewable Energy, Solar, Solar Newsletter, Systems Analysis|Tags: , , , , , |

The PV Performance Modeling Collaborative (PVPMC) recently released version 1.1 of the PV_LIB Toolbox for Matlab. The new version includes important bug fixes and many new and useful functions, including support for the single diode module model, clear sky irradiance models, incident angle modifier models and more! Sandia facilitates the PVPMC, a group of over 300 members around the globe who are interested in improving the accuracy and technical rigor of PV performance models and [...]

Study Rebuts Hypothesis That Comet Attacks Ended 13,000-Year-Old Clovis Culture

March 7th, 2013|Categories: Capabilities, Climate, Global, Global, Global Climate & Energy, Global Climate & Energy, Modeling, Modeling & Analysis, News, News & Events, Research & Capabilities|Tags: , , , , , , |

Rebutting a speculative hypothesis that comet explosions changed Earth’s climate sufficiently to end the Clovis culture in North America about 13,000 years ago, Sandia lead author Mark Boslough (Discrete Mathematics & Complex Systems Dept.) and researchers from 14 academic institutions assert that other explanations must be found for the apparent disappearance. “There’s no plausible mechanism to get airbursts over an entire continent,” said Boslough, a physicist. “For this and other reasons, we conclude that the impact [...]

Sandia Offers Approach to Help Utilities Understand Effects of PV Variability on the Grid

March 7th, 2013|Categories: DETL, Distribution Grid Integration, Energy, Energy Surety, Facilities, Grid Integration, Infrastructure Security, Microgrid, News, News & Events, Photovoltaic, Renewable Energy, SMART Grid, Solar Newsletter, Systems Analysis, Systems Engineering|Tags: , , , , , , , , , , , , , , , , , |

The Distributed Energy Technologies Laboratory (DETL) at Sandia National Laboratories. A report released recently by Sandia National Laboratories, the Electric Power Research Institute (EPRI), and the Georgia Institute of Technology provides a unique approach to help utilities assess the potential effects of high levels of solar photovoltaic (PV) systems on the grid. “Time Series Power Flow Analysis for Distribution Connected PV Generation” demonstrates how quasi-static time series (QSTS) simulation and high time-­resolution data [...]

Results from the Human Resilience Index and Modeling project were reported recently in the National Intelligence Council’s Global Trends 2030 Report

March 7th, 2013|Categories: Analysis, Capabilities, Climate, Energy, Energy Surety, Facilities, Global, Global, Global Climate & Energy, Global Climate & Energy, Infrastructure Security, News, News & Events, NISAC, Research & Capabilities, Systems Analysis|Tags: , , , , , , , , , , , , |

The Global Trends report is issued every four years and is the intelligence community’s unclassified effort to look decades ahead at global trends to identify security risks with direct or indirect impact to the U.S. The Human Resilience Index and Modeling project provides a set of tools to help explore the links among human ecological conditions and human resilience to shocks such as droughts, famines, and migration events, and conflict. Human ecological conditions are measured with [...]

Cellular Membrane Bending by Protein-Protein Crowding

March 7th, 2013|Categories: Biofuels, Biomass, CRF, Energy, Facilities, News, News & Events, Office of Science, Renewable Energy, Research & Capabilities, Transportation Energy|Tags: , , , , , , , , |

Cellular membranes are made up of lipid bilayers that can be highly curved, an essential feature critical for processes such as endocytosis, organelle synthesis, cell division, and intracellular transport. Current understanding suggests that specialized proteins are responsible for membrane curvature through two mechanisms. Mechanisms causing membrane curvature. Membrane scaffolding by proteins or complexes that assemble into a curved shape: These scaffolding proteins can bend membranes using anchors that cause the membrane to follow [...]

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

March 6th, 2013|Categories: EC, Energy, News, Photovoltaic, Renewable Energy, Solar|Tags: , , , , , , , |

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 energy storage. The Hawaiian Island of Maui plans to provide upwards of 40% of its system capacity by [...]

Engineering Alternative Fuel with Cyanobacteria

February 27th, 2013|Categories: Biofuels, Biomass, Energy, News, News & Events, Renewable Energy, Research & Capabilities, Transportation Energy|Tags: , , , , , |

Truman Fellow Anne Ruffing looks at a flask of cyanobacteria with precipitated fatty acid floating on top. She has engineered two strains of cyanobacteria to produce free fatty acids, a precursor to fuels, as she studies the direct conversion of carbon dioxide into biofuels by photosynthetic organisms. Sandia Truman Fellow Anne Ruffing (8622) has engineered two strains of cyanobacteria to produce free fatty acids (FFAs), a precursor to liquid fuels, but she also [...]

Measurements of Thermal Stratification in a Homogenous Charge Compression Ignition Engine

February 27th, 2013|Categories: CRF, Energy, Facilities, News, News & Events, Partnership, Research & Capabilities, Sensors & Optical Diagnostics, Transportation Energy|Tags: , , , , , , , , , |

Schematic of the optically accessible HCCI research engine. Homogenous charge compression ignition (HCCI) engines use fuel mixed with a substantial amount of excess air or recirculated exhaust gas that is compressed in the combustion chamber until it autoignites. The resulting combustion is a flameless and low-temperature burn that consumes less fuel than traditional spark-ignition internal combustion engines, and therefore, produces less carbon dioxide. HCCI engines have diesel-engine efficiency but without the accompanying nitrogen [...]

Improved Method to Measure Glare and Reflected Solar Irradiance

February 27th, 2013|Categories: Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, News & Events, Photovoltaic, Renewable Energy, Research & Capabilities, Solar, Solar Newsletter|Tags: , , , |

Sandia has developed a significantly cheaper, more efficient, and more accurate method of measuring the irradiance from solar reflections using a digital camera. Measurements of reflected solar irradiance is of great importance to industry, military, and government agencies to assess potential impacts of glint and glare from growing numbers of solar power installations around the world. In addition, this measurement technique can be used to monitor and maintain system performance for concentrating solar power applications.

‘Zombie’ Replica Cells May Outperform Live Ones as Catalysts and Conductors

February 27th, 2013|Categories: Advanced Materials Laboratory, Facilities, Materials Science, News, News & Events, Office of Science, Partnership, Research & Capabilities|Tags: , , , , , , |

The Sandia-developed technique coats a cell’s insides with a silica solution to form a near-­‐perfect replica of its internal structure—simplifying a wide variety of commercial fabrication processes from the nano- to macro-scale. The work, reported in the Proceedings of the National Academy of Sciences, uses the nanoscopic organelles and other tiny components of mammalian cells as templates on which to deposit silica. The researchers then heat the cell to burn off its protein. The resultant [...]

CRF Researchers Awarded David A. Shirley Award for Outstanding Scientific Achievement

February 27th, 2013|Categories: CRF, Energy, Facilities, News, News & Events, Office of Science, Research & Capabilities, Transportation Energy|Tags: , , , , , , , , , , , , , |

The David A. Shirley Award was presented to Carl Percival (University of Manchester), Dudley Shallcross [(University of Bristol) not pictured], and Craig Taatjes and David Osborn (Sandia). Craig Taatjes and David Osborn (both in 8353), along with collaborators at the universities of Manchester and Bristol, were given this LBNL Advanced Light Source (ALS) award for their work in making the first direct measurements of the reactions of Criegee intermediates and showing that their [...]

ECIS Biosciences Featured in Top Trade Publication

February 27th, 2013|Categories: Biofuels, Biomass, Energy, News, News & Events, Renewable Energy, Transportation Energy|Tags: , , , |

The latest edition of International Innovation features a Q&A with Malin Young (Director, Biological and Materials Science Center) and focuses on Sandia’s biosciences work. Malin describes how the Biological Science and Technology Department is working to protect the U.S. from biological threats, and how its innovative approach to biofuels could provide solutions to future energy demands. International Innovation touts itself as “Europe’s Leading Portal for Scientific Dissemination” and a top resource for the wider scientific, [...]

Graphene Image Cover for Journal of Materials Chemistry

February 26th, 2013|Categories: Materials Science, News, News & Events, Office of Science, Research & Capabilities|Tags: , , , |

The samples were prepared by Ronen Polsky and imaged by Joe Michael in an advanced SEM. The image is a composite produced by combining a secondary electron image obtained at very low voltage (500 V) with a backscattered electron image of the same area obtained at 10 kV. The Journal of Materials Chemistry selected to highlight on the December 7, 2012 (Volume 22, Issue 45), journal cover a high-resolution image of three-dimensional graphene [...]

Sandia Earns Federal Laboratory Consortium (FLC) Awards

February 26th, 2013|Categories: Energy, News, News & Events, Nuclear Energy, Research & Capabilities|Tags: , , , , , , , , , , , |

Paul Hommert has been named 2013 Laboratory Director of the Year by the FLC for his support of technology transfer activities at Sandia. The FLC said the award recognized the excellence of work during 2012 by Hommert, Sandia’s president and laboratories director, and the entire Sandia tech transfer program. The blue structure is a stylized CST. The magenta spheres are radiocesium ions in water and are being preferentially taken up by the CSTs over [...]

Biofuels Blend Right In: Researchers Show Ionic Liquids Effective for Pretreating Mixed Blends of Biofuel Feedstocks

February 26th, 2013|Categories: Biofuels, Biomass, Energy, Facilities, JBEI, News, News & Events, Partnership, Renewable Energy, Research & Capabilities, Transportation Energy|Tags: , , , , , , , , , , |

Jian Shi, Seema Singh, and Blake Simmons of the Joint BioEnergy Institute (JBEI): research on the successful use of ionic liquids to pre-treat mixed blends of different biofuel feedstocks. Winemakers have long known that blending different grape varietals can favorably balance the flavor characteristics of the wine they produce. In the future, makers of advanced biofuels might use a similar strategy, blending different feedstock varieties to balance the energy characteristics of the transportation [...]

Photovoltaic (PV) Regional Test Center (RTC) Website Goes Live

February 26th, 2013|Categories: Energy, National Solar Thermal Test Facility, News, News & Events, Partnership, Photovoltaic, Photovoltaic Regional Testing Center (PV RTC), Renewable Energy, Solar, Solar Newsletter, SunShot|Tags: , , , , , , , , , , , , , |

ECIS has developed a new external website to facilitate the functions of the five DOE RTCs—both interacting with each other to fulfill the overall DOE objectives and with partners in the U.S. PV industry. The site houses project updates, news, and events as well as controlled access for project file sharing. The DOE has commissioned five RTCs to provide the long-term technical data and the model validation for the performance and reliability of new PV [...]

Hope Michelsen named to Alameda County Women’s Hall of Fame

February 26th, 2013|Categories: CRF, Energy, News, News & Events, Research & Capabilities, Transportation Energy|Tags: , , , , , , |

Sandia combustion and atmospheric scientist Hope Michelsen (Combustion Chemistry Dept.) has been named by the Alameda County Women’s Hall of Fame as the 2013 Outstanding Woman in Science. She is the first Sandian to receive this award. Hope is being honored for her atmospheric science research, specifically, for developing methods of measuring soot, understanding how soot is formed, and building & deploying a mobile research facility coupled with atmospheric modeling to trace and identify the [...]