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Jan 05
2012

Paint-On Solar Cells Developed by Notre Dame Researchers

Posted by: VOICE in Solar

VOICE

Government agencies using solar power may soon be ditching their panels in favor of paint brushes. Researchers at the University of Notre Dame’s Center for Nano Science and Technology (NDnano) have developed a “solar paint” that can be applied on to a conductive surface, such as transparent conducting glass or plastic, that turns the energy of the sun into electricity.
The project consisted of taking nano-sized particles of titanium dioxide, coating them with either cadmium sulfide or cadmium selenide and suspending them in a water-alcohol mixture to create the paint. The semiconducting nanoparticles — called quantum dots — were mixed into a one-coat spreadable paste that can generate power, without using any special equipment. 

Nov 11
2011

Solar and Heat Design From MIT Does Double Duty

Posted by: Angel in Solar

Angel


MIT researchers say a hybrid solar-thermoelectric system they’re working on would provide a big advantage over conventional solar cells or solar thermal systems, particularly for household use: the ability to produce heat and electricity simultaneously. They propose accomplishing this mean feat through a clever reconfiguration of the standard parabolic trough

Nov 02
2011

New Wave Energy Converter Also Captures the Power of the Sun

Posted by: Grant Barbeito in Solar

Tagged in: wave energy , sun , Solar Energy , Solar , ocean energy

Grant Barbeito

There is a new invention just released that captures two types of clean energy with the same device. These inovative energy converters are designed to harness both solar and wave energy. Phil Pauley, founder of design and innovation agency PAULEY, developed the renewable power plant in a bid to drive innovation in the search for clean, sustainable and economically viable sources of energy.

Oct 17
2011

New Solar Farms at Edwards Air Force Base

Posted by: Christo Brock in Solar

Christo Brock


EDWARDS AIR FORCE BASE, Calif. -- With today's fiscal climate, Edwards Air Force Base is always looking for good ways to save money.
One area where Edwards is looking to save is energy costs.
After three years of planning and coordination with Southern California Edison, the California Public Utilities Commission and environmental agencies, workers are now building solar farms on base.



Jul 01
2011

IKEA Flips the Switch on a 65,000 Square Foot Solar Array in Sacramento

Posted by: Christo Brock in Solar

Tagged in: sun power , solar power , solar panels , Solar

Christo Brock

Furniture giant, IKEA, just switched on a 573-kW solar power system, which covers 65,000 square feet of space at their Sacramento, California store. The array is made up of approximately 2,548 panels and will help to cut 630 tons of carbon dioxide per year from the atmosphere. The solar array is the eighth solar power project that IKEA has finished in the US, and they still have plans to build twelve more — four more in California and eight on the East Coast.

Mar 22
2011

Basalt reaps the rewards after winning plastic bag challenge

Posted by: Administrator in Solar

Tagged in: Solar Energy , recycle , plastic bags , Besalt

Administrator

One good environmental deed in Basalt led to another on Wednesday.
Aspen Times staff report
Aspen, CO Colorado

BASALT — One good environmental deed in Basalt led to another on Wednesday.

Dec 26
2010

Researchers Develop Reactor to Make Fuel from Sunlight

Posted by: Administrator in Solar

Tagged in: sunlight

Administrator

 

Scientists raise hopes for a large-scale renewable source of liquid fuel with a simple reactor that mimics plants

by Damian Carrington, Guardian

Nov 03
2010

Why California’s Solar Industry Is Cheering The Defeat Of Prop. 23

Posted by: joe joe in Solar

Tagged in: Big Oil

joe joe

Tom Rooney is one happy guy today. The chief executive of SPG Solar, California’s second largest solar installer, says that California voters’ rejection of energy-related Proposition 23 is a boost for the solar industry in California. “The double positive for the solar industry was [Jerry] Brown getting elected governor and no on 23,” says Rooney. Prop. 23 lost, with 61% of voters against it and 39% in favor.

Sep 12
2010

Taking Solar to the Next Level

Posted by: Administrator in Solar

Tagged in: Solar Energy

Administrator
A design "charrette" sponsored by the Rocky Mountain Institute brought industry experts together to discuss how to bring down the installed costs of PV. The group focused on reducing BOS costs.
by Rebecca Cole, Rocky Mountain Institute Published: September 9, 2010

Boulder, Colorado, United States -- Creativity is the key to transformation. But creativity doesn't occur in a vacuum. Instead, creativity works best when people can pool their collective intellect and collaborate on game-changing ideas.

"Now that the hard costs have come down, the soft costs are forcing us to standardize. We need to do it at every single part of the value chain—manufacturing, installers, contractors, code officials, regional jurisdictions, banks, and financing options."
-- Doug Paine, Executive Director, SolarTech

In June, Rocky Mountain Institute convened a design charrette focused on the solar photovoltaic (PV) industry.

Held in San Jose, California, the event offered industry stakeholders and outside experts an opportunity to come together in the spirit of “coopetition” to identify designs and other improvements that could help bring down the “installed” costs (i.e., all the costs except the modules themselves) for commercial- and utility-scale PV projects.

“Despite all the dynamics of the industry, we really have a situation where you have people working on piecemeal solutions so you don’t get the full power of integration,” said Stephen Doig, PhD, a program director at RMI. “You have competition that inhibits cooperation.” Bringing diverse players together, he said, unlocks a power that often isn’t available to for-profit businesses that are simply trying to get the job done.

For any industry to grow, rules have to be changed, explained Sandy Munro, a charrette attendee and CEO of Munro & Associates. “The rules are what hold you back,” he said. “But once people start thinking differently, the rules fall away.” Enormous Potential for Solar Energy

Solar PV will play an increasingly important role in meeting the world’s energy needs, with continued double-digit annual growth predicted.

One report, released last December by the Electric Power Research Institute, states that the solar PV market is a “billions-of-dollars-per-year business for both module production and system installation.” However, only a tiny fraction of U.S. electricity is supplied via solar today—well under 0.1 percent in 2009. Installed system costs must come down in order for solar to be a viable part of the U.S. energy portfolio.

“We have a pressing need to find alternatives to fossil fuels,” Doig said. “The sun is by far the most abundant renewable resource out there. We are quite good already at converting that sunlight to electrical energy. The real issue is how do we get the costs down to a level where the adoption of solar energy takes off exponentially without the need for price supports or other incentives.”

While module costs have decreased significantly in the past decade, falling 33 percent in 2009 to current prices below $2/watt, solar PV remains an expensive energy option. This is largely due to “Balance of System” (BoS) costs (racking, mounting, installation, labor, wiring, power electronics, permitting, and other process expenditures), which generally account for about half the installed cost.

http://www.renewableenergyworld.com/rea/news/article/2010/09/taking-solar-to-the-next-level
Aug 30
2010

Solar Array Design: Parallel Wiring Opens New Doors

Posted by: Administrator in Solar

Tagged in: solar design

Administrator

The advent of parallel wiring architectures for solar arrays promises to create new levels of freedom and flexibility for designers.

Published: August 30, 2010

Tulsa, Oklahoma, United States -- For decades, designers of solar power systems have faced a knotty set of interlocking challenges. Solar panels produce DC at relatively low voltages, but inverters require a relatively high input voltage to be able to convert the power to AC and send it to the grid. Solar panels can be wired in series to sum their voltages, but their combined output fluctuates with even small mismatches among panels on a string.

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