|
I can't wait to see what happens when solar panels finally become affordable for everyone and begin to take hold. I think people and businesses will start to get obsessive compulsive and try to cover every possible surface thats gets sunlight, with panels. All the roofs of malls, businesses, buildings will be completely covered as well as parking lots, the roofs of residential houses. People will start riping out the landscaping in their front and back yard to lay down solar panels....It will get crazy and interesting!! I listed two groundbreaking articles below......
-------------------------------------------------------------------------------------------------------------------------------
The Dow Chemical Company (NYSE: DOW) today unveiled its line of DOW™ POWERHOUSE™ Solar Shingle, revolutionary photovoltaic solar panels in the form of solar shingles that can be integrated into rooftops with standard asphalt shingle materials. The solar shingle systems are expected to be available in limited quantities by mid-2010 and projected to be more widely available in 2011, putting the power of solar electricity generation directly and conveniently in the hands of homeowners.
Groundbreaking technology from Dow Solar Solutions (DSS) integrates low-cost, thin-film CIGS photovoltaic cells into a proprietary roofing shingle design, which represents a multi-functional solar energy generating roofing product. The innovative product design reduces installation costs because the conventional roofing shingles and solar generating shingles are installed simultaneously by roofing contractors. DSS expects an enthusiastic response from roofing contractors since no specialized skills or knowledge of solar array installations are required.
"This is just one example of how Dow's $1.5 billion annual R&D investment is allowing us to deliver practical solutions for some of the world's most critical challenges," said Dow Chairman and CEO Andrew N. Liveris. "These types of innovative products not only showcase our deep scientific and technical expertise but also demonstrate how our commitment to R&D is fueling Dow's future growth agenda around the world."
DOW™ POWERHOUSE™ Solar Shingle arrays are being showcased today at an event at Dow's Michigan Operations in the Company's headquarters city of Midland, Michigan.
"Making Michigan a leader in manufacturing green energy products continues to be a key part of our economic plan to grow the economy and create jobs," said Michigan Governor Jennifer M. Granholm. "Dow's solar shingles are another example of local research and development helping grow our green economy, and I applaud Dow's ongoing commitment to developing green energy solutions right here in Michigan."
Jane Palmieri, Managing Director of Dow Solar Solutions, noted that Dow's technology addresses two of the biggest challenges associated with solar power – cost and acceptance. "Consumers reap the benefits of our innovation. This is about providing roof protection and electricity generation all from one product, with lower costs, improved aesthetics, easier installation and long-lasting performance," she said.
Today's announcement is the latest milestone in Dow's solar energy strategy following the formation of its Dow Solar Solutions business unit. In 2007, the Company received $20 million in funding from the U.S. Department of Energy to develop "building integrated" solar arrays for the residential and commercial markets.
Dow's commitment to solar innovation extends beyond the DOW™ POWERHOUSE™ Solar Shingle arrays:
Dow Performance Fluids is a leading supplier of heat transfer fluids that enable concentrated solar power for parabolic, trough-based solar systems. DOWTHERM™ A collects heat energy from the sun and transports it to a power generating station that converts water into steam, which in turn drives turbines to make electricity.
Dow Adhesives and Functional Polymers is a leading global supplier of adhesives for photovoltaics, with exceptional performance in new backsheet substrates, as well as game-changing innovations in materials such as liquid encapsulants.
Dow Electronic Materials recently introduced its new line of ENLIGHT™ photovoltaic products, which increase solar cell efficiency and yield.
Dow Specialty Packaging & Films offers innovative polyolefin-based films used in the protective encapsulant layer and the structural backsheet of photovoltaic modules. The use of these films can improve productivity when the module is produced, and help increase its service life and reliability.
Dow Corning, a joint venture equally owned by The Dow Chemical Company and Corning, Incorporated, is also participating in the solar photovoltaic sector, applying its expertise in silicon-based materials to improve the cost efficiency, durability and performance of solar modules and photovoltaic devices. Dow Corning recently began construction on a facility that will manufacture monosilane gas, a key material used to manufacture thin-film solar cells and liquid crystal displays. Via its Hemlock Semiconductor joint venture, Dow Corning is also a leading provider of polycrystalline silicon and other silicon-based products used in the manufacturing of semiconductor devices, and solar cells and modules.
DOW™ POWERHOUSE™ Solar Shingle is the latest in a series of investments Dow has made to build upon its leadership position within the building and construction industry. Dow supplies a wide range of systems and solutions designed to help improve the energy efficiency and overall performance of buildings. This innovative technology also expands the ability for solar energy to be incorporated beyond roofing systems into applications such as exterior sidings, fascias and more.
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
In a revolutionary leap that could transform solar power from a marginal, boutique alternative into a mainstream energy source, MIT researchers have overcome a major barrier to large-scale solar power: storing energy for use when the sun doesn't shine.
Until now, solar power has been a daytime-only energy source, because storing extra solar energy for later use is prohibitively expensive and grossly inefficient. With today's announcement, MIT researchers have hit upon a simple, inexpensive, highly efficient process for storing solar energy.
Requiring nothing but abundant, non-toxic natural materials, this discovery could unlock the most potent, carbon-free energy source of all: the sun. "This is the nirvana of what we've been talking about for years," said MIT's Daniel Nocera, the Henry Dreyfus Professor of Energy at MIT and senior author of a paper describing the work in the July 31 issue of Science. "Solar power has always been a limited, far-off solution. Now we can seriously think about solar power as unlimited and soon."
Inspired by the photosynthesis performed by plants, Nocera and Matthew Kanan, a postdoctoral fellow in Nocera's lab, have developed an unprecedented process that will allow the sun's energy to be used to split water into hydrogen and oxygen gases. Later, the oxygen and hydrogen may be recombined inside a fuel cell, creating carbon-free electricity to power your house or your electric car, day or night.
The key component in Nocera and Kanan's new process is a new catalyst that produces oxygen gas from water; another catalyst produces valuable hydrogen gas. The new catalyst consists of cobalt metal, phosphate and an electrode, placed in water. When electricity --Â whether from a photovoltaic cell, a wind turbine or any other source --Â runs through the electrode, the cobalt and phosphate form a thin film on the electrode, and oxygen gas is produced.
Combined with another catalyst, such as platinum, that can produce hydrogen gas from water, the system can duplicate the water splitting reaction that occurs during photosynthesis.
The new catalyst works at room temperature, in neutral pH water, and it's easy to set up, Nocera said. "That's why I know this is going to work. It's so easy to implement," he said.
'Giant leap' for clean energy
Sunlight has the greatest potential of any power source to solve the world's energy problems, said Nocera. In one hour, enough sunlight strikes the Earth to provide the entire planet's energy needs for one year.
James Barber, a leader in the study of photosynthesis who was not involved in this research, called the discovery by Nocera and Kanan a "giant leap" toward generating clean, carbon-free energy on a massive scale.
"This is a major discovery with enormous implications for the future prosperity of humankind," said Barber, the Ernst Chain Professor of Biochemistry at Imperial College London. "The importance of their discovery cannot be overstated since it opens up the door for developing new technologies for energy production thus reducing our dependence for fossil fuels and addressing the global climate change problem."
'Just the beginning'
Currently available electrolyzers, which split water with electricity and are often used industrially, are not suited for artificial photosynthesis because they are very expensive and require a highly basic (non-benign) environment that has little to do with the conditions under which photosynthesis operates.
Â
More engineering work needs to be done to integrate the new scientific discovery into existing photovoltaic systems, but Nocera said he is confident that such systems will become a reality.
Â
"This is just the beginning," said Nocera, principal investigator for the Solar Revolution Project funded by the Chesonis Family Foundation and co-Director of the Eni-MIT Solar Frontiers Center. "The scientific community is really going to run with this."
Nocera hopes that within 10 years, homeowners will be able to power their homes in daylight through photovoltaic cells, while using excess solar energy to produce hydrogen and oxygen to power their own household fuel cell. Electricity-by-wire from a central source could be a thing of the past.
The project is part of the MIT Energy Initiative, a program designed to help transform the global energy system to meet the needs of the future and to help build a bridge to that future by improving today's energy systems. MITEI Director Ernest Moniz, Cecil and Ida Green Professor of Physics and Engineering Systems, noted that "this discovery in the Nocera lab demonstrates that moving up the transformation of our energy supply system to one based on renewables will depend heavily on frontier basic science."
Â
The success of the Nocera lab shows the impact of a mixture of funding sources - governments, philanthropy, and industry. This project was funded by the National Science Foundation and by the Chesonis Family Foundation, which gave MIT $10 million this spring to launch the Solar Revolution Project, with a goal to make the large scale deployment of solar energy within 10 years.
|
Printer-friendly format
Email this thread to a friend
Bookmark this thread
(169 posts)
Send PM |
Profile |
Ignore
