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Hydrogen and Solar energy
by Admin Wed Oct 22 2008, 03:45
breakthroughs on Hydrogen and Solar energy
Last edited by Admin on Fri Oct 24 2008, 04:32; edited 3 times in total
Admin- Admin
- Number of posts : 282
Registration date : 2007-05-23 -
Scientists mimic essence of plants energy storage system
by Admin Wed Oct 22 2008, 03:49
'Major discovery' from MIT primed to unleash solar revolution
Scientists mimic essence of plants' energy storage system
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.
Scientists mimic essence of plants' energy storage system
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.
Admin- Admin
- Number of posts : 282
Registration date : 2007-05-23 -
Solar revolution is comming soon
by Admin Fri Oct 24 2008, 06:05
Tegenlicht: Here comes the sun
Within the decade solar energie will have replaced fosile energy as mayor source. Things are going incrediblty fast.
See this excellent documentary (dutch commentary, but english interviews)
http://www.vpro.nl/programma/tegenlicht/afleveringen/40025880/media/40177219/
Within the decade solar energie will have replaced fosile energy as mayor source. Things are going incrediblty fast.
See this excellent documentary (dutch commentary, but english interviews)
http://www.vpro.nl/programma/tegenlicht/afleveringen/40025880/media/40177219/
Admin- Admin
- Number of posts : 282
Registration date : 2007-05-23 -
Inflatable Solar Collectors
by Admin Mon Jan 19 2009, 07:53
Inflatable Solar Collectors
CoolEarthSolar.com has a patented idea for inflatable solar collectors that are much cheaper than polished mirrors to concentrate sunlight onto Photovoltaic chips. Their design is 400x cheaper than polished aluminum mirrors, will withstand 130 mph winds, lasts a year, repairs with tape, takes 15 minutes to change out, costs $2 per balloon, or 18 cents per watt, compared to $5 per watt for conventional installations, and has a minimal effect on the ground underneath the array!
CoolEarthSolar.com has a patented idea for inflatable solar collectors that are much cheaper than polished mirrors to concentrate sunlight onto Photovoltaic chips. Their design is 400x cheaper than polished aluminum mirrors, will withstand 130 mph winds, lasts a year, repairs with tape, takes 15 minutes to change out, costs $2 per balloon, or 18 cents per watt, compared to $5 per watt for conventional installations, and has a minimal effect on the ground underneath the array!