-- Scotts Contracting - StLouis Renewable Energy

Search This Blog

6.21.2011

Green Jobs Are Real: German and American Solar Industry Both Employ More People Than U.S. Steel Production | Renewable Energy News Article

Washington, D.C., United States – With roughly 93,500 direct and indirect jobs, the American solar industry now employs about 9,200 more workers than the U.S. steel production sector, according to 2010 Bureau of Labor Statistics. The American steel industry has historically been a symbol of the country's industrial might and economic prosperity. But today, the solar industry has the potential to overtake that image as we build a new, clean-energy economy.

Green Jobs Are Real: German and American Solar Industry Both Employ More People Than U.S. Steel Production | Renewable Energy News Article

Solar power without solar cells: A hidden magnetic effect of light could make it possible

Solar Power Without Solar Cells: A Hidden Magnetic Effect of Light Could Make It Possible

ScienceDaily (Apr. 14, 2011) — A dramatic and surprising magnetic effect of light discovered by University of Michigan researchers could lead to solar power without traditional semiconductor-based solar cells.


The researchers found a way to make an "optical battery," said Stephen Rand, a professor in the departments of Electrical Engineering and Computer Science, Physics and Applied Physics.

In the process, they overturned a century-old tenet of physics.

"You could stare at the equations of motion all day and you will not see this possibility. We've all been taught that this doesn't happen," said Rand, an author of a paper on the work published in the Journal of Applied Physics. "It's a very odd interaction. That's why it's been overlooked for more than 100 years."

Light has electric and magnetic components. Until now, scientists thought the effects of the magnetic field were so weak that they could be ignored. What Rand and his colleagues found is that at the right intensity, when light is traveling through a material that does not conduct electricity, the light field can generate magnetic effects that are 100 million times stronger than previously expected. Under these circumstances, the magnetic effects develop strength equivalent to a strong electric effect.

"This could lead to a new kind of solar cell without semiconductors and without absorption to produce charge separation," Rand said. "In solar cells, the light goes into a material, gets absorbed and creates heat. Here, we expect to have a very low heat load. Instead of the light being absorbed, energy is stored in the magnetic moment. Intense magnetization can be induced by intense light and then it is ultimately capable of providing a capacitive power source."

What makes this possible is a previously undetected brand of "optical rectification," says William Fisher, a doctoral student in applied physics. In traditional optical rectification, light's electric field causes a charge separation, or a pulling apart of the positive and negative charges in a material. This sets up a voltage, similar to that in a battery. This electric effect had previously been detected only in crystalline materials that possessed a certain symmetry.

Rand and Fisher found that under the right circumstances and in other types of materials, the light's magnetic field can also create optical rectification.

"It turns out that the magnetic field starts curving the electrons into a C-shape and they move forward a little each time," Fisher said. "That C-shape of charge motion generates both an electric dipole and a magnetic dipole. If we can set up many of these in a row in a long fiber, we can make a huge voltage and by extracting that voltage, we can use it as a power source."

The light must be shone through a material that does not conduct electricity, such as glass. And it must be focused to an intensity of 10 million watts per square centimeter. Sunlight isn't this intense on its own, but new materials are being sought that would work at lower intensities, Fisher said.

"In our most recent paper, we show that incoherent light like sunlight is theoretically almost as effective in producing charge separation as laser light is," Fisher said.

This new technique could make solar power cheaper, the researchers say. They predict that with improved materials they could achieve 10 percent efficiency in converting solar power to useable energy. That's equivalent to today's commercial-grade solar cells.

"To manufacture modern solar cells, you have to do extensive semiconductor processing," Fisher said. "All we would need are lenses to focus the light and a fiber to guide it. Glass works for both. It's already made in bulk, and it doesn't require as much processing. Transparent ceramics might be even better."

In experiments this summer, the researchers will work on harnessing this power with laser light, and then with sunlight.

The paper is titled "Optically-induced charge separation and terahertz emission in unbiased dielectrics." The university is pursuing patent protection for the intellectual property.

Solar power without solar cells: A hidden magnetic effect of light could make it possible

6.16.2011

CAD Detail of Garage Footing Under Construction

This CAD Drawing by Scotty-Scotts Contracting outlines how I feel a Garage Footing and Foundation Should be built.  Note: Additional Rebar for Support and Strength, True Brick Ledge, and Keyway all add strength to the Foundation.  Not the Bare minimum that I was asked to build- in the Second Photo.  
"If you want a building to stand up to the test of time how intelligent of choice is it to: skimp on $200 Worth of Materials & $300 worth of Labor?"

I was hired on to build a Garage Foundation and Footing Detail of Building to this bare minimum design. See Below



CAD Detail by Scotts Contracting - Garage Foundation Wall and Footing Detail

Scotts Contracting Picasa Web Job Site Album Photos 

    


State Energy Efficiency Policies Deliver, Save Consumers Billions
















                       

NEWS RELEASE

 

For Immediate Release

June 15, 2011

 

Contact: Michael Sciortino

(202) 507-4028

msciortino@aceee.org

 

Seth Nowak

(608) 256-9155

snowak@aceee.org

   

Media Contact: Patrick Kiker

(202) 507-4043

pkiker@aceee.org

 

 

 

ACROSS THE NATION, STATE ENERGY EFFICIENCY POLICIES DELIVER, SAVE CONSUMERS BILLIONS

 

Utilities Expand Programs and Plan for Even More

 

 

Washington, D.C. (June 15): States across the country have been reaching or exceeding their energy savings goals established through Energy Efficiency Resource Standards (EERS), thereby lowering utility bills for consumers and reducing the need to build costly new power plants. The forecast is also bright for the future as states expect to achieve even higher energy savings for utility customers in years to come. These are the findings of two reports released today by the American Council for an Energy-Efficient Economy (ACEEE).   

 

From 2004 to 2010, 24 states followed the lead set by Texas and Vermont by establishing an EERS, a policy that sets long-term energy savings goals for electric and natural gas utilities. Since then, utilities, regulators, and consumers in all corners of the country have embraced this approach to deliver energy efficiency programs that save energy and money in homes and businesses.

 

The first report, Energy Efficiency Resource Standards: A Progress Report on State Energy Savings Targets, documents the performance of every state with an EERS in place for more than two years. Comparing actual performance with the EERS targets, 13 of the 19 states with EERS policies in place for over two years are achieving 100% or more of their goals, three states are reaching over 90% of their goals, and the three states falling below 80% of their goals are working hard to catch up.  In each case, state EERS policies are driving energy efficiency investments and energy cost savings to unprecedented levels.

 

"These states are demonstrating that energy efficiency programs deliver real savings for utilities and ratepayers, and it is more affordable than any supply-side energy source," said Michael Sciortino, Policy Analyst and the report's lead author. By law and rule, the energy efficiency programs implemented in a state with an EERS must cost less than the electricity that would have been produced if not for the programs. Accordingly, utility efficiency programs are saving customers significantly more than they cost.

 

For example, in 2009 and 2010, Ohio utility customers saved $56 million in energy costs over and above the costs to deliver the programs. Over the lifetime of these programs, they are likely to save customers in excess of three-quarters of a billion dollars-and this is just the beginning. Program goals increase over time.

 

"As a comprehensive national energy policy remains beyond the reach of Congress, states are taking action to show how bold energy efficiency policies can benefit residential, commercial, and industrial consumers," said Steven Nadel, ACEEE Executive Director.

 

The future promises still more savings from state EERS, since most EERS targets increase over the next decade. The second report, Energy Efficiency Resource Standards: State Strategies to Reach Higher Energy Savings, documents how utilities are planning to ramp up their efforts to hit these higher energy savings levels. 

 

The second report includes an analysis of six states with some of the largest and most successful energy efficiency programs in the United States-California, Connecticut, Massachusetts, Minnesota, New York, and Vermont. In these leading states, utilities are employing new strategies to expand existing programs and add new ones, enhance advertising and promotions, and conduct innovative pilot projects.

 

Six more states-Arizona, Colorado, Illinois, Michigan, Ohio, and Pennsylvania-are also examined in detail as they rapidly ramp up to develop the state-of-the-art energy efficiency programs required to meet the increasingly higher targets. Utilities in these states are running fewer, simpler programs that can get the most energy savings as quickly and cost-effectively as possible.

 

"Experts who specialize in these states say the potential for cost-effective energy efficiency is more than sufficient to meet the goals that have been established, and they put the likelihood of states continuing to meet their goals in the 90% range," summarized Martin Kushler, ACEEE Senior Research Fellow. "The greatest challenge for the future isn't technical-it's inspiring the political will necessary to pass these energy and money-saving standards in every state."

 

To read the first report, Energy Efficiency Resource Standards: A Progress Report on State Energy Savings Targets, below

 

To read the second report, Energy Efficiency Resource Standards: State Strategies to Reach Higher Energy Savings, below.  

 

To read the fact sheet, click here.

 

About ACEEE: The American Council for an Energy-Efficient Economy is an independent, nonprofit organization dedicated to advancing energy efficiency as a means of promoting economic prosperity, energy security, and environmental protection. For information about ACEEE and its programs, publications, and conferences, visit www.aceee.org.

 

Follow us on Find us on Facebook  Follow us on Twitter  View our photos on flickr    

 

                                                            ###

                                         










Energy Efficiency Resource Standards: State and Utility Strategies for Higher Energy Savings


June 15, 2011

Research Report U113

Authors:

Seth Nowak, Martin Kushler, Michael Sciortino, Dan York, and Patti Witte

Description:

Twenty-two states adopted Energy Efficiency Resources Standards (EERS) between 2007 and 2010, passing the tipping point so that now more than half of all states have EERS in place for electricity, natural gas, or both. Many states with well-established ratepayer-funded energy efficiency portfolios have been expanding and enhancing their efforts, raising annual percent savings targets to unprecedented levels. There is also a new breed of states launching comprehensive and extensive efficiency efforts built to achieve annual savings goals of 1%, 1.5%, and even 2% within just a few years. These "Established Savers" and "Rapid Start" states have been scaling up budgets, enacting both supportive and complementary policies, and bringing together collaborative stakeholder groups to achieve and sustain aggressive savings. Utilities have been responding to this new policy environment by adding and developing programs, efficient technologies, market segmentation strategies, program approaches, and program designs. For this report, we picked six states in each group to research in order to capture and describe the trends and themes, take a snapshot of results to date, and assess the outlook for the future. We collected data by utility and by state, conducting interviews with 36 program administrators, managers, and state and nonprofit experts with knowledge of how stepped-up savings levels would be attained and sustained. Their on-the-ground, in-the-field perspective was then complemented by the broader views and observations of seven nationally-known industry experts.



--


Connect with Scotts Contracting

FB FB Twitter LinkedIn Blog Blog Blog Blog Pinterest