DOE Office of Energy Efficiency and Renewable Energy

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Fuel-Cell-Powered Mobile Lights Tested, Proven, Ready for Commercial Use

News Article, December 4, 2014 • Developed by Sandia and several industry partners, the fuel-cell mobile light offers a cleaner, quieter alternative to diesel-powered units. As seen here (top center), the system has been used by airport construction personnel at San Francisco International Airport and in other applications. (Photo by Dino Vournas) Mobile lighting systems powered...

Portable Hydrogen Fuel-Cell Unit to Provide Green, Sustainable Power to Honolulu Port

News Article, March 13, 2014 • Sandia researcher Joe Pratt stands near the Port of Oakland, one of the west coast ports he studied to learn whether hydrogen fuel cells are a viable power source for docked ships. (Photo by Steffan Schulz) Clean hydrogen power that’s expected to lower emissions and reduce energy consumption will be...

Sandia Research on Rooftop Structural Strength Gains Attention

News Article, July 29, 2015 • A roof structure is made stronger by the system elements working together—much stronger than its main load-bearing element, the rafter, is alone. Current engineering analysis methods do not take this composite action into account when evaluating rooftop strength. Two Sandia research reports, “Structural Code Considerations of Solar Rooftop Installations” and...

Sandia Rooftop PV Structural Report Webinar

News Article, September 18, 2015 • Results from the Sandia research reports, “Structural Code Considerations of Solar Rooftop Installations” and “Empirically Derived Strength of Residential Roof Structure for Solar Installations,” will be featured in an upcoming webinar hosted by the Solar Instructor Training Network (SITN). Sandia PI Stephen Dwyer (in Sandia’s Geotechnology & Engineering Dept.) will...

Sandia Video Featured by DOE Bioenergy Technologies Office

News Article, December 10, 2014 • Sandia is working on a second generation of biofuels that can be refined from more abundant, less costly feedstocks. In July 2014, the DOE Bioenergy Technologies Office (BETO) released the short documentary film Bioenergy: America’s Energy Future, which highlights stories of individuals and companies who are passionate about achieving the...

Sandia Wins DOE Geothermal Technologies Office Funding Award

News Article, December 15, 2014 • (a) A fractured well. (b) Fractured zones loaded with unique tagged nanoparticles inside the proppant. (c) Tagged nanoparticles released from each zone over time. Above-ground sampling will be analyzed for the tagged nanoparticles. This diagram indicates: no flow from green zone, medium flow from blue zone, high flow from red...

Sandia’s Algae Nutrient Recycling Project Is a Triple Win

News Article, September 23, 2015 • Nitrogen and phosphate nutrients are among the largest costs in cultivating algae for biofuel production. Sandia molecular biologists (in Sandia’s Systems Biology Dept.) and Ryan Davis (in Sandia’s Biomass Science and Conversion Technology Dept.) have shown they can recycle ~⅔ of those critical nutrients, and aim to raise the recycling...

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

News Article, July 14, 2015 • 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...

Sandia’s Twistact Project Chosen for DOE’s LabCorps Entrepreneurial Program

News Article, June 26, 2015 • The Sandia-patented rotary electrical contact device and method for providing current to and/or from a rotating member. Twistact is a fundamentally new class of rotary electrical-contact device to replace brush/slip-ring hardware and eliminate the need for rare-earth-element magnets in wind-turbine generators. The Twistact technology provides rolling contact, the electric current...

Testing heat exchangers helps move solar plans forward

News Article, June 14, 2021 • STEADY AS SHE FLOWS — An illustration of the test facility, where particle and sCO2 flows can circulate indefinitely and achieve true steady-state operating conditions by maintaining accurate control over the heat exchanger inlet temperatures. (Graphic by Kevin Albrecht) Sandia researchers have completed a two-year effort to evaluate heat exchanger...