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Solar Energy Windows and Smart IR Switchable Building Technologies

Description: The three building envelope functions with the largest impact on the energy usage are illumination, energy flux and energy production. In general, these three functions are addressed separately in the building design. A step change toward a zero-energy building can be achieved with a glazing system that combines these three functions and their control into a single unit. In particular, significant value could be realized if illumination into the building is dynamically controlled such that it o… more
Date: September 30, 2011
Creator: McCarny, James & Kornish, Brian
Partner: UNT Libraries Government Documents Department
open access

Bonded Bracket Assmebly for Frameless Solar Panels

Description: In February 2011 the US Department of Energy announced their new Sunshot Initiative. The Sunshot goal is to reduce the total cost of solar energy systems by about 75 percent before the end of the decade. The DOE estimated that a total installed cost of $1 per watt for photovoltaic systems would be equivalent to 6¢/kilowatt hour (kWh) for energy available from the grid. The DOE also estimated that to meet the $1 per watt goal, PV module costs would need to be reduced to $.50 per watt, bal… more
Date: January 30, 2013
Creator: Murray, Todd
Partner: UNT Libraries Government Documents Department
open access

Reflector Technology Development and System Design for Concentrating Solar Power Technologies

Description: Alcoa began this program in March of 2008 with the goal of developing and validating an advanced CSP trough design to lower the levelized cost of energy (LCOE) as compared to existing glass based, space-frame trough technology. In addition to showing a pathway to a significant LCOE reduction, Alcoa also desired to create US jobs to support the emerging CSP industry. Alcoa's objective during Phase I: Concept Feasibility was to provide the DOE with a design approach that demonstrates significant … more
Date: December 30, 2011
Creator: Schaut, Adam & Smith, Philip
Partner: UNT Libraries Government Documents Department
open access

The Role of Energy Storage in Commercial Building

Description: Motivation and Background of Study This project was motivated by the need to understand the full value of energy storage (thermal and electric energy storage) in commercial buildings, the opportunity of benefits for building operations and the potential interactions between a building and a smart grid infrastructure. On-site or local energy storage systems are not new to the commercial building sector; they have been in place in US buildings for decades. Most building-scale storage technologies… more
Date: September 30, 2010
Creator: Kintner-Meyer, Michael CW; Subbarao, Krishnappa; Prakash Kumar, Nirupama; Bandyopadhyay, Gopal K.; Finley, C.; Koritarov, V. S. et al.
Partner: UNT Libraries Government Documents Department
open access

Concentrating Solar Power – Central Receiver Panel Component Fabrication and Testing FINAL REPORT

Description: The objective of this project is to complete a design of an advanced concentrated solar panel and demonstrate the manufacturability of key components. Then confirm the operation of the key components under prototypic solar flux conditions. This work is an important step in reducing the levelized cost of energy (LCOE) from a central receiver solar power plant. The key technical risk to building larger power towers is building the larger receiver systems. Therefore, this proposed technology proje… more
Date: March 30, 2013
Creator: McDowell, Michael W & Miner, Kris
Partner: UNT Libraries Government Documents Department
open access

Molten Salt-Carbon Nanotube Thermal Energy Storage for Concentrating Solar Power Systems Final Report

Description: We demonstrated that adding nanoparticles to a molten salt would increase its utility as a thermal energy storage medium for a concentrating solar power system. Specifically, we demonstrated that we could increase the specific heat of nitrate and carbonate salts containing 1% or less of alumina nanoparticles. We fabricated the composite materials using both evaporative and air drying methods. We tested several thermophysical properties of the composite materials, including the specific heat, th… more
Date: March 30, 2012
Creator: Schuller, Michael; Little, Frank; Malik, Darren; Betts, Matt; Shao, Qian; Luo, Jun et al.
Partner: UNT Libraries Government Documents Department
open access

Final Report for Department of Energy/EERE (for public release)

Description: Developing CIGS solar cells calls for the understanding of materials and processing in order to translate the record small efficiency to module and the strategy to produce thin cells for materials and processing saving. This project has exploited nanostructuring of CIG solar cells, including nanowires and nanotextured substrates. We showed that nanowires function as well-defined CIGS-CdS p-n junction for understanding the chemical fluctuation, defect formation interface and grain boundary behav… more
Date: April 30, 2012
Creator: Cui, Yi
Partner: UNT Libraries Government Documents Department
open access

Solar Energy Development Assistance for Fort Hunter Liggett

Description: Pacific Northwest National Laboratory provided assistance to Fort Hunter Liggett to determine the opportunities for solar energy development on the site. Increasing use of renewable energy is mandated by several executive orders and legislation. Fort Hunter Liggett has many attributes that enhance its suitability for renewable energy development. First, the site is located south of San Francisco in a remote portion of the costal foothills. Brush and forest fires are frequent and often result in… more
Date: March 30, 2011
Creator: Russo, Bryan J.; Hoffman, Michael G. & Chvala, William D.
Partner: UNT Libraries Government Documents Department
open access

Flexible Ultra Moisture Barrier Film for Thin-Film Photovoltaic Applications

Description: Flexible Thin-film photovoltaic (TFPV) is a low cost alternative to incumbent c-Si PV products as it requires less volume of costly semiconductor materials and it can potentially reduce installation cost. Among the TFPV options, copper indium gallium diselenide (CIGS) has the highest efficiency and is believed to be one of the most attractive candidates to achieve PV cost reduction. However, CIGS cells are very moisture sensitive and require module water vapor transmission rate (WVTR) of less t… more
Date: October 30, 2012
Creator: Dean, David M.
Partner: UNT Libraries Government Documents Department
open access

Recovery Act: A Low Cost Spray Deposited Solar PV Anti-Reflection Coating Final Technical Report

Description: PV module glass is typically low iron glass which exhibits extremely low absorption of light at solar wavelengths. However, reflection losses from typical high quality solar glass are about 4.5% of the input solar energy. By applying an antireflection coating to the cover glass of their modules, a PV module maker will gain at least a 3% increase in the light passing through the glass and being converted to electricity. Thus achieving an increase of >3% in electricity output from the modules. T… more
Date: August 30, 2010
Creator: Harvey, Michael D.
Partner: UNT Libraries Government Documents Department
open access

Construction of High-Performance, Low-Cost Photoelectrodes with Controlled Polycrystalline Architectures

Description: The major goal of our research was to gain the ability in electrochemical synthesis to precisely control compositions and morphologies of various oxide-based polycrystalline photoelectrodes in order to establish the composition-morphology-photoelectrochemical property relationships while discovering highly efficient photoelectrode systems for use in solar energy conversion. Major achievements include: development of porous n-type BiVO{sub 4} photoanode for efficient and stable solar water oxida… more
Date: June 30, 2013
Creator: Choi, Kyoung-Shin
Partner: UNT Libraries Government Documents Department
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Impact of solid-phase crystallization of amorphous silicon on the chemical structure of the buried Si/ZnO thin film solar cell interface

Description: The chemical interface structure between phosphorus-doped hydrogenated amorphous silicon and aluminum-doped zinc oxide thin films is investigated with soft x-ray emission spectroscopy (XES) before and after solid-phase crystallization (SPC) at 600C. In addition to the expected SPC-induced phase transition from amorphous to polycrystalline silicon, our XES data indicates a pronounced chemical interaction at the buried Si/ZnO interface. In particular, we find an SPC-enhanced formation of Si-O bon… more
Date: April 30, 2010
Creator: Bar, M.; Wimmer, M.; Wilks, R. G.; Roczen, M.; Gerlach, D.; Ruske, F. et al.
Partner: UNT Libraries Government Documents Department
open access

Final Report for DE-FG36-08GO18007 "All-Inorganic, Efficient Photovoltaic Solid State Devices Utilizing Semiconducting Colloidal Nanocrystal Quantum Dots"

Description: We demonstrated robust colloidal quantum dot (QD) photovoltaics with high internal quantum efficiencies. In our structures, device durability is derived from use of all-inorganic atmospherically-stable semiconducting metal-oxide films together with QD photoreceptors. We have shown that both QD and metal-oxide semiconducting films and contacts are amenable to room temperature processing under minimal vacuum conditions, enabling large area processing of PV structures of high internal efficiency. … more
Date: September 30, 2011
Creator: Bawendi, Vladimir Bulovic and Moungi
Partner: UNT Libraries Government Documents Department
open access

Solar America Initiative State Working Group: Final Scientific/Technical Report

Description: Through the support from the Department of Energy, NARUC has educated thousands of stakeholders, including Public Utility Commissioners, commission staff, and State energy officials on solar energy technology, implementation, and policy. During the lifetime of this grant, NARUC staff engaged stakeholders in policy discussions, technical research, site visits, and educational meetings/webinars/materials that provided valuable education and coordination on solar energy technology and policy among… more
Date: March 30, 2012
Creator: Taylor, Julie
Partner: UNT Libraries Government Documents Department
open access

Issaquah Highlands Zero Energy Affordable Housing (WA) - YWCA

Description: The YWCA Family Village at Issaquah, Net Zero Energy Approach Project provides a compelling model for how the nation can seriously respond to the critical need for affordable housing while advancing environmental standards and reducing economic inequities. Affordable housing developments for vulnerable members of the community and in today's workforce cannot overlook issues, such as climate impact, energy security and water conservation. This project's advanced building design was based on the … more
Date: April 30, 2012
Creator: Tom, Vincent; DeRobbio, Wendy & Hall, Linda
Partner: UNT Libraries Government Documents Department
open access

High Efficiency Solar-based Catalytic Structure for CO{sub 2} Reforming

Description: Throughout this project, we developed and optimized various photocatalyst structures for CO{sub 2} reforming into hydrocarbon fuels and various commodity chemical products. We also built several closed-loop and continuous fixed-bed photocatalytic reactor system prototypes for a larger-scale demonstration of CO{sub 2} reforming into hydrocarbons, mainly methane and formic acid. The results achieved have indicated that with each type of reactor and structure, high reforming yields can be obtained… more
Date: September 30, 2013
Creator: Menkara, Hisham
Partner: UNT Libraries Government Documents Department
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