The Economics just aren't there: Towards a Model of Wind Energy Industry Development in Industrial and Emerging Economies

submitted by: RASEIBoulder
Summary: Through the development and analysis of in-depth case studies of the emergence of wind power industries in industrialized and emerging economies, a model of sustainable energy industry development is proposed. The model demonstrates that fundamental economic indicators are insufficient for explaining new industry development. Environmental, institutional and cultural factors idiosyncratic to individual jurisdictions play important roles in the emergence of renewable energy...

Progress towards Third Generation Solar Energy Conversion: Can Quantum Dot Solar Cells exceed the Shockley-Queisser Limit?

submitted by: RASEIBoulder
Summary: Power conversion efficiency is one of the most important parameters that can directly affect the overall cost of a PV installation. In the Shockley-Queisser detailed balanced analysis, the power conversion efficiency is limited to ~33% for a single light absorbing layer. The major energy loss occurs from the excess photon energy, energy greater than the semiconductor bandgap, which is lost as heat through electron-phonon coupling and subsequent phonon relaxation and energy...

Using Renewable Hybrid Power Systems to Meet Off-Grid Community and Commercial Energy Needs

submitted by: RASEIBoulder
Summary: Diesel generators are the traditional means by which people generate electricity in remote locations. Throughout the world, there are many thousands of off-grid communities, industrial sites, and government facilities relying entirely on diesel generated electricity. At $4/gallon, the fuel component alone of diesel-generated electricity is high, about $0.30/kWh. Some remote locations pay over $8/gallon or $0.60/kWh. With diesel fuel prices projected to rise even higher in the long...

The Global Energy Transition: What Will It Take to Make The Switch

submitted by: RASEIBoulder
Summary: Energy impacts every aspect of our lives – yet energy remains a vast and complex subject. For the past two years I have been filming a major documentary on global energy. Based on personal visits to many of the world’s leading energy sites and conversations with top industry, academic and government leaders, I will look inside the complex world of energy and provide a realistic and balanced view of energy supply, demand, efficiency, infrastructure, and scale. All major forms of...

Photo-Physics and Renewable Energy Applications of Single-Walled Carbon Nanotubes

submitted by: RASEIBoulder
Summary: Single-walled carbon nanotubes (SWNTs) are two-dimensionally confined quantum wires that have the potential to impact a variety of renewable energy applications. SWCNTs have several fundamental properties that make them attractive for sustainable energy conversion technologies, including high electron and hole mobilities, size-tunable ionization potentials and electron affinities in an energy range relevant to many photovoltaic devices, and optical transitions in the visible and...

Opportunities and Challenges of Offshore Wind Energy

submitted by: RASEIBoulder
Offshore wind power can contribute extensively to a clean, robust, and diversified U.S. energy portfolio. Capturing the Nation's large and inexhaustible offshore wind resource has the potential to mitigate climate change, improve the environment, increase energy security, and stimulate the U.S. economy. This seminar provides a broad understanding of the global offshore wind industry today and the associated technology challenges, economics, permitting procedures, and potential risks and...

Can Renewables Provide Big Energy in America's Electric Future?

submitted by: RASEIBoulder
Renewable energy sources currently provide about only about 10% of the nation’s electricity, with most of that coming from large hydro sources. Renewable energy sources are scattered around the country, with much of the best wind and solar resources located in remote locations. These sources also may have a big footprint compared to conventional sources. Finally, solar and wind are often described as intermittent due to their variable and uncertain output. As a consequence, it is often...

Liquid Crystal Based Variable Light Attenuation for Switchable Solar Heat Gain Coefficient Application

submitted by: RASEIBoulder
Energy loss through the windows remains a dominant obstacle in obtaining zero-energy buildings. In particular, for mixed climate environments, the solar heat gain coefficient of a window must be switchable to control the amount of solar heating in the winter and summer seasons. Furthermore, it is desirable for the system not to consume energy from the grid and operate in an autonomous way. Finally, the system must be scalable and cost effective to retrofit existing windows. In this talk, we...

Search for Rare Earths, Key Materials for Energy Innovation

submitted by: RASEIBoulder
Rare earth minerals are difficult and expensive to mine. And like most mining activities, doing so results in environmental damage, particularly because the ores from which these metals are extracted can be radioactive. Chinese mines have produced rare earths at a much lower cost, forcing competitors to shut down in recent years and creating a near monopoly. Japan is developing technology to improve recycling of some rare earths from discarded electronic products. And it is seeking...

Clean Energy and the Environment in America: The Colorado Story

submitted by: RASEIBoulder
The Center’s Director, Bill Ritter, was elected as Colorado’s 41st governor in 2006 - the first Colorado-born governor in more than 35 years. He quickly established Colorado as a national and international leader in clean energy by creating a New Energy Economy and tripling the state’s renewable energy portfolio. In a state with substantial fossil energy as well as renewable energy resources, Gov. Ritter created policies that balanced energy production with protection of air, land,...