Presentation for the 2010 Open Access Symposium discussing a commercial publisher's operations and perspective on open access

The presentation introduces the various types of CPV technologies and provides a status report of today's CPV companies. Six different architectures of multijunction cells are shown to near or surpass 40% in efficiency. The design space for CPV is quite complex, which is a curse for those trying to narrow it down for the first prototype, but a blessing for those who want multiple pathways for product improvement in coming years.

Presentation for the 2010 Open Access Symposium discussing the benefits of an active faculty role in distributing research through the institutional repository.

Presentation for the 2010 Open Access Symposium addressing multiple issues involved in developing a university open access policy.

This presentation summarizes biological systems for hydrogen photoproduction.

This presentation summarizes the approach used to update the U.S. geothermal supply curve.

A presentation discussing the Lead and Copper Rule (LCR) and how the EPA is in the process of developing revisions to the rule.

None

This presentation provides an overview of renewable resources for hydrogen. It was presented at the National Hydrogen Association Hydrogen Conference & Expo in Long Beach, CA, May 3-6, 2010.

Presentation about compressed natural gas in municipal fleets, assessing investment profitability, the VICE model, base-case scenarios, and pressing questions for fleet owners.

This presentation summarizes hydrogen production fundamentals and case studies, including hydrogen to wind case studies.

Strategic energy planning is paramount during times of dramatic population growth, global warming, increasing energy demands, and concerns over energy security, food security, and economic development. Recent concerns over water scarcity have moved the energy-water issue to the forefront of energy options discussions. This presentation describes the current water challenges in the United States and presents a case for wind energy as one way to mitigate the problem of water scarcity in several U.S. regions while providing a clean and sustainable economic future for America.

Presentation of Blade Testing at NREL's National Wind Technology Center for the 2010 Sandia National Laboratories Blade Testing Workshop.

This presentation details how wind turbine gearboxes fail to meet 20-year design life and how the Gearbox Reliability Collaborative (GRC) is addressing the challenges.

This presentation describes the fuel cell power model for CHP and CHHP economics and performance analysis.

Renewable energy sources, such as wind and solar, have vast potential to reduce dependence on fossil fuels and greenhouse gas emissions in the electric sector. Climate change concerns, state initiatives including renewable portfolio standards, and consumer efforts are resulting in increased deployments of both technologies. Both solar photovoltaics (PV) and wind energy have variable and uncertain (sometimes referred to as "intermittent") output, which are unlike the dispatchable sources used for the majority of electricity generation in the United States. The variability of these sources has led to concerns regarding the reliability of an electric grid that derives a large fraction of its energy from these sources as well as the cost of reliably integrating large amounts of variable generation into the electric grid. In this report, we explore the role of energy storage in the electricity grid, focusing on the effects of large-scale deployment of variable renewable sources (primarily wind and solar energy).

The presentation was given as a webinar to the Solar Instructor Training Network on August 13, 2010. It summarizes the three primary types of photovoltaic technologies, why the three approaches are useful and some advantages and disadvantages of each approach. At the end is an answer to a question that was asked.

A review of NREL's FY10 work on hydrogen production via distributed bio-oil reforming.

Discussion of the formation of CdTe thin-film PV junctions and optimization of CdTe thin-film PV solar cells.

Heat removal for power semiconductor devices is critical for robust operation. Because there are different packaging options, different thermal management technologies, and a range of applications, there is a need for a methodology to match cooling technologies and package configurations to target applications. To meet this need, a methodology was developed to compare the sensitivity of cooling technologies on the overall package thermal performance over a range of power semiconductor packaging configurations. The results provide insight into the trade-offs associated with cooling technologies and package configurations. The approach provides a method for comparing new developments in power semiconductor packages and identifying potential thermal control technologies for the package. The results can help users select the appropriate combination of packaging configuration and cooling technology for the desired application.

With support from General Motors, NREL researchers converted and tested a hybrid electric vehicle (HEV) with three energy storage configurations: a nickel metal-hydride battery and two ultracapacitor (Ucap) modules. They found that the HEV equipped with one Ucap module performed as well as or better than the HEV with a stock NiMH battery configuration. Thus, Ucaps could increase the market penetration and fuel savings of HEVs.

This presentation summarizes controlled hydrogen fleet & infrastructure analysis undertaken for the DOE Fuel Cell Technologies Program.

The motivation for an increased scope and a more proactive effort in reliability research of photovoltaic modules and systems includes reducing the levelized cost of energy and gaining better confidence in the energy and financial payback for photovoltaic systems. This increased reliability and confidence will lead to greater penetration of photovoltaics in the energy portfolio and greater employment in photovoltaics and related industries. Present research needs include the fundamental degradation mechanisms of polymers, connectors and other module components, mapping of failure mechanisms observed in the field to those in accelerated lifetime tests, determining the acceleration factors, and improving standards for modules such that tests can appropriately be assigned to evaluate their long term durability. Specific mechanisms discussed are corrosion in module components, metastability in thin-film active layers, delamination and loss of elastic properties in module polymeric materials, and inverter failure. Presently, there is hiring of reliability scientists and engineers at many levels of the value chain for photovoltaics.

Summary of hydrogen and fuel cell demonstration projects, costs and market introduction.