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Hans De Keulenaer

Appliances and Commercial Equipment Standards: Small Electric Motors - 0 views

  • The Energy Policy and Conservation Act (EPCA) of 1975 established an energy conservation program for major household appliances. The National Energy Conservation Policy Act of 1978 amended EPCA to add Part C of Title III, which established an energy conservation program for certain industrial equipment. The Energy Policy Act of 1992 (EPACT) also amended EPCA, and included amendments that expanded title III to include small electric motors. The Department of Energy, Office of Energy Efficiency and Renewable Energy, Building Technologies Program conducts the program that develops equipment energy conservation standards and has overall responsibility for rulemaking activities for small electric motors in fulfillment of the law.
Energy Net

Technology Review: Does Car-Mounted Solar Make Sense? - 0 views

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    Last week, the Japanese newspaper Nikkei caused a buzz by reporting that a redesigned Toyota Prius, to be released next year, will come equipped with solar panels. Toyota spokespeople will neither confirm nor deny the report, but several companies already offer solar roof kits for the Prius, and researchers at the U.S. Department of Energy's National Renewable Energy Laboratory (NREL), in Golden, CO, have been testing one on a Prius modified to plug into the electrical grid.
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    I hope the lifetime of the car will also be extended to the lifetime of the solar system? But seriously, it's hard to see the logic here.
Energy Net

Solar Cooling Becomes A New Air-conditioning System - 0 views

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    Scientists from the Universidad Carlos III of Madrid (UC3M) and the Consejo Superior de Investigaciones Científicas (CSIC) have developed an environmentally friendly cooling technology that does not harm the ozone layer. This is achieved by using solar energy and therefore reducing the use of greenhouse gases.
Peter Fleming

80% of British biofuels are unsustainable - energy-fuels - 12 August 2008 - New Scientist Environment - 0 views

  • The UK does not consume significant amounts of ethanol made from corn, which has been widely criticised for using more fossil fuels in production than are saved by burning it in vehicle tanks.
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    Biofuels have received another environmental black mark.
Jeff Johnson

This Land - In the Hills of Nebraska, Change Is on the Horizon - NYTimes.com - 0 views

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    Driving south out of the agricultural town of Ainsworth, you can't miss its newest crop: wind turbines, three dozen of them, with steel stalks 230 feet high and petal-like blades 131 feet long, sprouting improbably from the sand hills of north-central Nebraska, beside ruminating cattle. Though painted gray, the turbines stand out against the evening backdrop of battleship-colored thunderclouds and bear an almost celestial whiteness when day's light is right. Airplane pilots can spot them from far away, and rarely does a bird make their unfortunate acquaintance. The sound of 8.5-ton blades, three to a turbine, turning and turning, only enhances their almost supernatural presence. Standing at the base of a turbine's stalk, you hear a whistling whoosh - whuh ... whuh ... whuh - as steady summer winds come like the breath of gods to toy with pinwheel amusements.
Peter Fleming

Moon Mined for Earth's Alternative Fuel? - 1 views

  • "Just 40 tons of this stuff has enough potential energy to meet the total U.S. electricity demand for a year." Does this mean we will be mining the moon for Helium-3 any time soon to fuel the earth? Probably not, since the cost to extract Helium-3 from the moon would be enormous and it would require "hundreds of millions of tons of soil" to "be processed to extract a ton of helium-3".
    • Peter Fleming
       
      Seems a long way off. I can't see it working before tipping points if we don't use the money for viables.
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    Mining for helium-3 on the moon is being considered as another alternate fuel source.
Peter Fleming

IEEE Spectrum: Q&A: Thorium Reactor Designer Ratan Kumar Sinha - 0 views

  • Given its limited reserves of natural uranium and its abundant supply of thorium, India has chalked out a unique three-stage nuclear program. In the first stage, pressurized heavy water reactors (PHWRs)—similar to those used in advanced industrial countries—burn natural uranium. In the second stage, fast-breeder reactors, which other countries have tried to commercialize without success, will burn plutonium derived from standard power reactors to stretch fuel efficiency. In the key third stage, on which India's long-term nuclear energy supply depends, power reactors will run on thorium and uranium-233 (an isotope that does not occur naturally).
    • Peter Fleming
       
      Friends of the earth do not view this a renewable energy. It is a thorny issue. Green activists will not accept it. However I am pragmatic and nuclear energy, if lead by a free flow of the western latest methods, is safe. It will do far less damage than a hydrocarbon generator to the environment. Meltdowns are a thing of the past in the west just like car engines used to blow up when they first came out.
Colin Bennett

Obama calls for tighter standards for household appliances | Energy Efficiency News - 0 views

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    President Barack Obama has called on the Department of Energy (DOE) to tighten up the energy efficiency standards for household appliances.
Hans De Keulenaer

Markets, Technology and Institutions: Increasing Energy Efficiency Through Decentralized Coordination | ecoalign - 0 views

  • Project Energy Code focuses on understanding the “green gap”—the individual statements of concern over energy and the environment and the actual decisions and behaviors of individuals with the ability to modify electricity consumption, and the institutions that enable options mentioned above. These Project Energy Code differences between respect to their energy choices. Why does this green gap exist in our electricity consumption choices?
Hans De Keulenaer

Department of Energy - Smart Grid - 0 views

  • “The Smart Grid: An Introduction ” is a publication sponsored by DOE’s Office of Electricity Delivery and Energy Reliability. It is the first book of its kind to explore – in layman’s terms – the nature, challenges, opportunities and necessity of Smart Grid implementation.
Hans De Keulenaer

GreenBizCafe » Blog Archive » How Much Electricity Does a Car Need? - 0 views

  • (The Volt will be a ful-sized four-passenger car with a range of about 65 kilometres using only its batteries. It is scheduled to go into production in the United States in 2010.)
  • The Volt will use a battery with a capacity of 16 kilowatt-hours of charge. But that battery won’t dip below eight kWh of charge, so a full nightly charge would be eight kWh - about the same amount of power as is consumed by a water heater, a plasma TV or a computer and monitor left on all day.
Hans De Keulenaer

Jeff Vail - 0 views

  • It has been suggested that this “rebound effect” only accounts for 5-20% of efficiency gains, but I have written previously about the potential for a “shadow” rebound effect that potentially accounts for nearly the entire efficiency gain.
Hans De Keulenaer

IEEE Spectrum: Does Fusion Have a Future? - 0 views

  • U.S. funding reversal for ITER suggests that fusion energy—"always just a few decades away from reality" as the joke goes—may have finally run out of decades
Colin Bennett

EERE News: Superconducting Cable Project Points to More Efficient Grid - 0 views

  • DOE and SuperPower, Inc. commemorated on February 21 a $27 million project to install a 350-meter high-temperature superconducting (HTS) cable between two electrical substations in Albany. While that might not sound like much cable for the money, the project is the first demonstration of a technology that could someday be used to build a more energy efficient power grid. The HTS cable reduces energy loss by up to 10%, and wires using the same technology could potentially be integrated into generators, transformers, cables, and fault current limiters, making most of the equipment that produces and delivers power more energy efficient. On the other end of the power line, HTS wires can be employed in motors, providing an energy efficiency improvement for one of the largest electrical loads served by electric utilities.
Colin Bennett

Green Commuter Makes a Statement - Thunderbolt Electric Scooter (GALLERY) - 0 views

  • The Thunderbolt Electric Scooter Concept by Henrik Björkman does not break new grounds when it comes to technological advances, but this sexy environment-friendly scooter has a loud and clear message for you. Down with combustible engines! The scooter’s design emphasizes a curvy hole where the engine is traditionally placed. The result is a not-so-subtle protest against combustible engine use. The Thunderbolt has a range of around 70 KM/H on a three hour charge.
Sergio Ferreira

Miles per dollar - 0 views

  • I agree with that logic, though from my perspective "mp$" could be even more useful as we enter a world in which the gallons we're using aren't directly comparable, and as electricity enters the transportation mainstream, resisting easy conversion to gallons without heroic assumptions and creating potentially over-optimistic assessments of the overall efficiency of plug-in hybrid cars.
  • Miles per dollar has much to recommend it, particularly for its simplicity and alignment with the priority consumers put on value. However, it also has two key disadvantages. Unlike mpg, it changes every time fuel prices do, so any comparisons based on mp$ are only snapshots at a point in time. Nor does it address the emissions associated with that dollar's worth of energy, though mpg doesn't do that, either.
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    We can always create more money (not by printing though). And energy is abundant. So if climate change is what we're concern about, miles per kg CO2, or kg CO2 per mile should be the measure. Either can work. We have sports where either low or high scores are good, so it should not confuse too many.
Colin Bennett

Lead still a contender for hybrid cars: industry | Science | Reuters - 0 views

  • LONDON (Reuters) - Lead is still in the race to make batteries for hybrid-powered vehicles, President Bruce Neil at privately-owned lead producer Doe Run told a conference on Monday.
davidchapman

New Record: Wind Powers 40% Of Spain : MetaEfficient - 0 views

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    40% of Spain's demand met by wind during recent windy weekend. It would be interesting to know more - what was the demand, what percentage of available wind capacity was used, how variable was the wind, how was this variability managed, etc. Does anyone know anyone who knows?
Hans De Keulenaer

Distributed Energy First, Wait On New Transmission Lines - 0 views

  • Only recently have we begun to realize that a renewable energy future does not inevitably mean a decentralized energy future. Indeed, right now the fastest growing part of the renewable energy industry may be the large solar central power systems being built in remote locations in the southwest to serve customers in Los Angeles, and the huge wind farms being built in the Midwest to serve customers in Chicago.
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    In a world where small used to be beautiful
Hans De Keulenaer

Will nuclear-produced electricity be low carbon? - AutoblogGreen - 0 views

  • Nuclear energy is often touted by its supporters as being cheap, clean and plentiful. It's often stated in articles on the subject that Patrick Moore, purported co-founder of Greenpeace, is in favor of increased nuclear plants. In fact, there are about 30 new American nuclear plants currently on the drawing board. So, does nuclear live up to the claims of its supporters? Well, for one, it might not be as cheap as we've been told. Two reactors planned for Levy County, Florida may clock in at more than twice their original estimate at $10 billion. You can install a lot of distributed solar capacity for that kind of money. In fact Moody's Investor Services gave an estimate in October of $6,000 per kilowatt that Jim Hempstead (a senior credit officer at Moody's) stated in a recent article in the Wall Street Journal has been "blown by" after reviewing recent estimates from a handful of "experienced different nuclear operators".
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