The renewable energy sector even with obstacles is one area where materials
play and continue to play, a key role in finding solutions to the needs of the
future, both from the perspective of active agents in the treatment of renewable
energy materials as the manufacture, installation and operation
of infrastructure support.
The scale of the infrastructure
WWS(Wind,Water,Sun) is not a barrier . But a few materials needed to build,
could be scarce or be subject to price
manipulation.There are enough cement and steel for the millions of wind
turbines and both products are fully recyclable. The most problematic materials
may be rare earth metals such as neodymium used in gearboxes for wind turbines. Manufacturers are moving
toward Gearless turbines, so this limitation may become moot.
Recent researchs from Ohio State University facing possible to check that the addition of silver nanoparticles to the polymer that would increase the current power generation capacity of semiconductor materials, this discovery could reduce the costs and investments and improve efficiency of solar panels.
The growing importance of the
environment in power generation, conservation, storage and security of supply
are the main pitfalls of materials technology that must be solve. The high priority of the
renewable energy sector makes it equally important to continue research, development and
modeling of materials for energy applications that contribute to the production
and use of sustainable energy, but at the same time meeting the socioeconomic
and environmental objectives that are proposed mainly from the European Union
as a political "202020".
Photovoltaic cells depend on the
crystalline or amorphous silicon, cadmium telluride or copper indium selenide
and sulfide. The limited supply of tellurium and indium could reduce the
prospects of some types of thin-film solar cells, but not all, the other type
could lead to fill the unused space. The large scale of materials production could be
restricted by the silver that require cells to conduct electricity, but it
could face in finding ways to reduce the silver content. The recycling of
old cell parts could also improve the difficulties of materials.
About the amorphous silicon we can
say that definitely silicon technology thrives in the market thanks to the fame
of being cheaper and therefore able to help to resolve the problem financing of
photovoltaic plants, to be competitive. But
amorphous silicon is not only a solution economic, also is technology. Their technical
characteristics, carried to any project, represent a substantial improvement in
profitability.The experience, and the application of the calculation
parameters, produce results of energy generated per installed kW, giving a turn
to traditional computing. The end result is that amorphous silicon also get
more energy at end of year.
Are drowning the voices that warned
of loss efficiency amorphous silicon panels,because many manufacturers assuming identical
warranty conditions than silicon crystalline. Not long ago all manufacturers of this reputation technologies were foreigners,many countries
of East and reputation not established and, of course, experience with this
technology was not enough to entrust such long-term investment in suppliers
that could disappear along with their supposed guarantees. Turns out, time
passes, evidence are produced,the ends are tied of the guarantees and
certifications, tests the efficiency losses with the modules in the sun and it
is concluded that the technology is mature.That day has arrived for silicon
technology amorphous, this
technology is promising.
Recent researchs from Ohio State University facing possible to check that the addition of silver nanoparticles to the polymer that would increase the current power generation capacity of semiconductor materials, this discovery could reduce the costs and investments and improve efficiency of solar panels.
Note: In the next articles we'll
talk in more detail about this new discovery.
Three components could represent
challenges for the manufacture of millions of electric cars: rare earth for
electric motor, lithium for lithium-ion batteries, and platinum for fuel
batteries. More than half of the world's lithium reserves are in Bolivia and
Chile. This concentration, combined with rapidly growing demand, could raise
prices significantly. More problematic is the notice given by Meridian
International Research that not enough economically recoverable lithium to
build the number of batteries needed in a global economy of electric vehicles.
Recycling could change the equation, but the economics of recycling depend in
part on whether the batteries are made with easy recycling in mind, a question
of what the industry is aware. The long-term use of platinum also depends on
recycling, the current available reserves could sustain annual production of 20
million fuel batteries vehicles, along with existing industrial uses, at least
for 100 years.
In the next article we will continue with Intelligent mix of renewable energy for sustainable
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