Energy & Green Tech news
Why a hydrogen economy doesn't make sense
In a recent study, fuel cell expert Ulf Bossel explains that a hydrogen economy is a wasteful economy. The large amount of energy required to isolate hydrogen from natural compounds (water, natural gas, biomass), ...
Technology / Energy & Green Tech
Dec 11, 2006 |
4.1 / 5 (446) |
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How a smart, decentralized Energy Web is essential for managing renewable energy sources
(PhysOrg.com) -- A decade ago, Gnutella, Kazaa and other early peer-to-peer (P2P) systems showed that a decentralized approach to managing large-scale, widely distributed systems could offer many essential ...
Technology / Energy & Green Tech
Jul 06, 2010 |
3.5 / 5 (15) |
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Renewable Energy Made by Mixing Salt and Fresh Water
(PhysOrg.com) -- When a river flows into the sea, the location is more than just a haven for water commerce. The mixing of fresh and salt water that occurs at an estuary also dissipates energy, as the different ...
Technology / Energy & Green Tech
Sep 02, 2009 |
4.3 / 5 (29) |
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Micro Fuel Cells Get Closer to Replacing Batteries
(PhysOrg.com) -- Mobile electronics have the potential to offer digital luxuries beyond our imagination, but they will never get there on today’s lithium ion batteries. Power has been the weak spot in the ...
Technology / Energy & Green Tech
Nov 17, 2008 |
4.5 / 5 (128) |
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Hydrogen-Wind-Nuclear Plant in Ontario Not Currently Worthwhile, Study Shows
A recent case study on using hydrogen to store the electricity generated by a mix of wind and nuclear power in Ontario, Canada, has shown that the hydrogen addition won’t be worth the cost, at least not at the current state ...
Technology / Energy & Green Tech
Aug 06, 2008 |
4.2 / 5 (32) |
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40% efficient solar cells to be used for solar electricity
Scientists from Spectrolab, Inc., a subsidiary of Boeing, have recently published their research on the fabrication of solar cells that surpass the 40% efficiency milestone—the highest efficiency achieved ...
Technology / Energy & Green Tech
Jun 01, 2007 |
4.5 / 5 (464) |
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H2CAR could fuel entire U.S. transportation sector
In a recent study, scientists have demonstrated that a hybrid system of hydrogen and carbon can produce a sufficient amount of liquid hydrocarbon fuels to power the entire U.S. transportation sector. Using ...
Technology / Energy & Green Tech
Apr 24, 2007 |
4.4 / 5 (113) |
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How much fuel do you save with a hybrid SUV?
Hybrids are getting heavier, but they seem to bear their weight better than conventional vehicles when it comes to fuel efficiency, according to a recent study. In the study, the scientists found that the ...
Technology / Energy & Green Tech
Apr 19, 2007 |
3.8 / 5 (61) |
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Researchers use corn waste to generate electricity
After the corn harvest, whether for cattle feed or corn on the cob, farmers usually leave the stalks and stems in the field, but now, a team of Penn State researchers thinks corn stover can be used not only to manufacture ...
Technology / Energy & Green Tech
Jul 19, 2006 |
4.2 / 5 (26) |
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New small solid oxide fuel cell reaches record efficiency
Individual homes and entire neighborhoods could be powered with a new, small-scale solid oxide fuel cell system that achieves up to 57 percent efficiency, significantly higher than the 30 to 50 percent efficiencies ...
Technology / Energy & Green Tech
May 31, 2012 |
4.7 / 5 (28) |
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HyperSolar shows dirty water no barrier to power world
(Phys.org) -- The Santa Barbara, California, company, HyperSolar, is set to transparently share the ups and downs of its research experiences toward the company’s ultimate vision, successfully producing ...
Technology / Energy & Green Tech
May 24, 2012 |
4.8 / 5 (17) |
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New inexpensive, environmentally friendly solar cell shines with potential
(Phys.org) -- The limitations of conventional and current solar cells include high production cost, low operating efficiency and durability, and many cells rely on toxic and scarce materials. Northwestern University researchers ...
Technology / Energy & Green Tech
May 23, 2012 |
4.8 / 5 (13) |
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Delphi gasoline-injection engine technique rivals hybrid's edge
(Phys.org) -- Running a diesel like engine on gasoline is something Delphi is doing in notable fashion. They claim they are on to a promising way to enjoy an engine that gives the vehicle owner high efficiency ...
Technology / Energy & Green Tech
May 21, 2012 |
4.7 / 5 (18) |
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Scotland passes turbine test to harness tidal power
(Phys.org) -- An underwater turbine being used for harnessing tidal power to generate electricity for homes and businesses has successfully completed its testing period in the island of Eday, one of Orkney’s ...
Technology / Energy & Green Tech
May 20, 2012 |
4.6 / 5 (18) |
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French company uses wind turbine to create fresh water
(Phys.org) -- French company Eole Water has announced that they have developed and are now in the process of selling wind turbines that have been modified to produce fresh drinking water. Company reps say ...
Technology / Energy & Green Tech
May 01, 2012 |
4.1 / 5 (21) |
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