Former US Nuclear Regulatory Commission chairman Gregory Jaczko yesterday said that nuclear energy is playing an increasingly insignificant role in electricity generation worldwide, and that, contrary to popular belief, it is actually more expensive than a range of methods of energy generation.
Why don't we have nuclear fusion power yet? Because it involves taming plasmas at temperatures far hotter than the Sun's core. But the good news is that physicists are slowly but surely figuring out how.
Scientists from 34 different nations — among them Russia, Japan, the United States, India, China, Korea and several European states — which gather over a 50% of the world population, work together in a project in Cadarache, France, in order to b...
DUBAI (Reuters) - Saudi Arabia's Supreme Economic Council has approved a restructuring of state oil company Saudi Aramco [SDABO.UL] that includes separating it from the oil ministry, Al Arabiya television
Long term, seemingly immutable trends break. All the time. Especially in the realm of energy. The U.S. Energy Information Administration just published a great chart that shows how oil—once pretty much the only transportation fuel we used in America—is losing its grip at a nontrivial rate. The chart shows the...
High- temperature solar trap collectors provide near ambient temperature solar entry surfaces and negligible thermal radiation losses by counterflowing low velocity transparent gases or liquids (fluids) to nullify internal thermal diffusion and radiative heat losses at the solar entry surface. Small steradian (sr) baffling plus wavelength-selective materials trap the entire 0.35u to 2.7u incoming solar spectrum and heat highly absorbing internal surfaces to high temperatures; only a small solid angle of the 2π steradians - on the order of 0.01 sr - of internal thermal radiation escapes. A nearly 100% efficient flat panel solar trapping embodiment exhibits alpha (α) absorption nearing 1.0 and radiant emission losses nearing 0.0 even at solar collection temperatures in excess of 1,000°K. Ultra high collection efficiency counterflow configurations are ideal for solar hot water, space heating, cooling, energy storage, and electric power generation applications.
Bloomberg recently declared the era of fossil fuels irrevocably in decline: “The world is now adding more capacity for renewable power each year than coal, natural gas, and oil combined. And there's no going back.”
Solar power has one glaring downside: Electricity can’t be generated at night or on rainy days. So why not generate electricity in space where there’s unlimited access to sunlight? Japan has conducted a string of successful demonstrations showcasing this concept of wireless power transmission, which is sure to become a critical technological innovation for energy in the future.
One of the constraints of solar power is that it is not always available: it is dependent on daylight hours and clear skies. In order to fill these gaps, a storage solution or a backup infrastructure of fossil fuel power plants is required -- a factor that is often ignored when scientists investigate the sustainability of PV systems. Whether or not to include storage is no longer just an academic question. Driven by better battery technology and the disincentivization of grid-connected solar panels, off-grid solar is about to make...
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