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Colin Bennett

Will carbon capture ruin groundwater supplies? | Greenbang - 0 views

    Now the Amercian Water Works Association Research Foundation (AWWARF) is to undertake a project to assess the potential impact underground carbon storage has on the quality of groundwater supplies.
Hans De Keulenaer

Railway Gazette: UltraCaps win out in energy storage - 0 views

    REGENERATIVE BRAKING is widely practised, but there have to be other trains around to absorb the surplus power being fed back into the catenary or third rail. Processing the output from trains and pushing it back into the local grid is possible with an AC power supply, but very expensive with DC traction. Too often, power produced by traction motors in braking mode ends up heating resistor banks. The elegant alternative is to store the braking energy on the train. This not only avoids the electrical complications of regenerating through the traction power supply network. It reduces the rated power requirement of that network by lopping demand peaks during acceleration, saves energy by reducing losses in the catenary or conductor rail, and by limiting voltage drop it allows substations to be further apart. NiMH batteries have the necessary energy storage density in terms of kWh/kg, and are slightly more expensive, but their life in terms of charge/discharge cycles in no way matches the LRV requirement for 2million cycles over 10 years. Flywheels have been tried but never caught on for several reasons.
Energy Net

Webinar On Energy Efficiency Supply Curves - 0 views

    My colleague Inês gave a webinar recently on her work on energy efficiency supply curves titled: "The US Energy Savings Potential and Who Pays for It". Watch the webinar for free here. Energy use and CO2 emissions from the residential sector are distributed among a variety of household services, each of which may use different fuels at different intensities. Efficiency supply curves help policymakers determine where the low-hanging fruit are for GHG mitigation.
Hans De Keulenaer

Bell Gully - Government to review electricity sector's continuance of supply obligation - 0 views

  • Under current law, from 1 April 2013 lines companies will no longer be statutorily required to provide a connection to remote rural, or any, customers. The most likely consequence is that, as lines become damaged after weather events or generally become unusable, supply will either be terminated or the cost to consumers in remote rural areas will increase significantly.
Infogreen Global

Siemens to present power supply solutions for megacities at the Hanover Fair - 1 views

    As part of the "Metropolitan Solutions" exhibition at the Hanover Fair, Siemens Energy will present four selected projects providing energy-efficient, ecofriendly power supply solutions for megacities.
Hans De Keulenaer

Research Recap » Blog Archive » Solar Power Could Supply 69% of US Electricit... - 0 views

    A massive switch from coal, oil, natural gas and nuclear power plants to solar power plants could supply 69% of the US's electricity and 35% of its total energy by 2050, according to Scientific American. However, $420 billion in subsidies from 2011 to 2050 would be required to fund the infrastructure and make it cost-competitive, the publication says in "A Solar Grand Plan" presented in its January 2008 issue.
Phil Slade

Europe could create a 100% renewable electricity supply by 2050 - PIK Research Portal - 1 views

    " Renewable energy sources could be used at scale by 2050 if supported by an efficient European transmission grid and a single European power market united with similar grids and markets in North Africa. This is shown in a new report released last week by PricewaterhouseCoopers. A group of energy and climate experts from the company in collaboration with researchers of the Potsdam Institute for Climate Impact Research (PIK), the International Institute for Applied Systems Analysis (IIASA) and the European Climate Forum (ECF) have examined possible transformation paths for the European and North African power sector. A transformation of the power sector based on one hundred percent renewables would address energy security and supply concerns while decarbonising electricity generation and at the same time reduce energy poverty, the report says."
Colin Bennett

Website on renewable resources trade launched in Suzhou - People's Daily Online - 0 views

    Meanwhile, it provides the latest market information for scrap metal, plastic scrap and waste paper every day; and updates on supply and demand including daily waste rubber, waste electronic/electric equipment, waste glass and waste leather.
Colin Bennett

Climate Change = More Heat Waves = More Blackouts « Earth2Tech - 0 views

    a report published today in the Journal of Applied Meteorology and Climatology details research from scientists at Lawrence Berkeley National Laboratory, which estimates that electricity demand could outstrip supply by as much as 17 percent on the hottest days in the coming decades.
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.
Hans De Keulenaer

The Oil Drum: Europe | Energy Prices, Inflation and Denial - 0 views

  • Higher energy prices are feeding through to rampant consumer energy price inflation. And yet the authorities and many investment houses still see energy prices falling in the future. This naive view of global energy supplies is starving energy markets of the capital required to expand conventional and alternative energy supplies.
Colin Bennett

Speak Up Energy : Energising Europe - 0 views

    The European Commission has adopted a third package of legislative proposals to ensure a real and effective choice of supplier and benefits to every single EU citizen. The Commission's proposals put consumer choice, fairer prices, cleaner energy and security of supply at the centre of its approach.
Glycon Garcia

Renewable energy law signed into effect in Chile | Markets | Reuters - 0 views

  • SANTIAGO, March 20 (Reuters) - Chilean President Michelle Bachelet signed a new energy law into effect on Thursday that requires electric utilities to invest in and supply nonconventional energy sources (NCES). The vanguard law is an attempt by the energy-poor country to diversify supply as it tries to feed booming industry, particularly its copper mining sector.
Sergio Ferreira

Europe Unplugged - TIME - 0 views

  • That took about 1,200 MW from the country's grid and brought electrical reserves to a dangerously low level.
  • And so at 12:39 p.m., the electricity sputtered off in Athens
  • metro
  • ...6 more annotations...
  • elevators for up to four hours
  • Why is Europe's electricity sector so inadequate? There are crises up and down the system: high prices, inadequate supply, creaking infrastructure.
  • Thursday a fresh power cut caused by a faulty cable struck the Acropolis and two neighboring districts for an hour
  • worst power outage in Greece in decades
  • ext 15 years
  • half the power plants in Europe are more than 25 years old, meaning they will have to be replaced in th
    A vision... from the past... and the future...
Hans De Keulenaer

Environmental Capital - : Blow Hard: Wind to Supply 20% of U.S. Power? - 0 views

  • The U.S. can follow Denmark’s lead and get 20% of its electricity from wind by 2030, the Department of Energy said today. The only obstacles, according to the DOE report, are building the wind turbines, improving them, getting them in place, and getting their electricity to where it’s used. Piece of cake.
Colin Bennett

The Energy Blog: Supergrid to Supply Europe with Wind Power - 0 views

  • The scheme would make the use of renewable energy, particularly wind power, so reliable and cheap that it would replace fossil fuels on an unprecedented scale, serving 1.1 billion people in 50 countries.
  • Czisch didn't comment on superconducting transmission, previous post, for some of the main lines, which are higher efficiency and more importantly can conduct up to 10 times the amount of power of today’s conventional copper cables of the same size.
  • The Independent reports that a proposed supergrid could supply Europe with carbon free electricity primarily from wind power. The 5,000-mile electrical grid, stretching from Siberia to Morocco and Egypt to Iceland, would slash Europe's CO2 emissions by a quarter, scientists say.
Sergio Ferreira

SUEZ Energy To Supply City of Dallas with Green Energy - 0 views

  • SUEZ Energy Resources NA, the U.S. retail energy business of SUEZ Energy North America announced that it has won a contract to supply the city of Dallas with approximately 90% of it's electricity, 40% of which will be from renewable energy sources.
Hans De Keulenaer

Technology Review: Storing Solar Power Efficiently - 0 views

  • Their schemes come with a caveat, of course: without backup power plants or expensive investments in giant batteries, flywheels, or other energy-storage systems, this solar-power supply would fluctuate wildly with each passing cloud (not to mention with the sun's daily rise and fall and seasonal ebbs and flows). Solar-power startup Ausra, based in Palo Alto, thinks it has the solution: solar-thermal-power plants that turn sunlight into steam and efficiently store heat for cloudy days.
  • Solar proponents love to boast that just a few hundred square kilometers' worth of photovoltaic solar panels installed in Southwestern deserts could power the United States. Their schemes come with a caveat, of course: without backup power plants or expensive investments in giant batteries, flywheels, or other energy-storage systems, this solar-power supply would fluctuate wildly with each passing cloud (not to mention with the sun's daily rise and fall and seasonal ebbs and flows). Solar-power startup > Ausra > , based in Palo Alto, thinks it has the solution: solar-thermal-power plants that turn sunlight into steam and efficiently store heat for cloudy days. >
Hans De Keulenaer

Energy Outlook - 0 views

  • Oil commodity futures are in demand as financial instruments in a different way than when they were used primarily as a way for refiners and distributors to manage the risk on their physical market activities. As that demand grows--as more individuals, companies, and hedge funds want to participate in the oil market, without a link to any physical supply or demand for the commodity--then the price of these instruments ought to rise, in tandem. But with the price of most physical oil pegged to a futures market, whether for WTI or European Brent crude, that demand can influence the physical market, as well, without changing the real supply or demand by one barrel.
Hans De Keulenaer

Energy Outlook - 0 views

  • Any answers to these questions would be purely speculative, but if the industry had continued expanding at its previous rate, then instead of the current 104 reactors, we might easily have 200, contributing 40% of our total electricity supplies. Coal-fired power plants would supply only 32% of our power needs, instead of 50%, and we'd emit roughly 650 million tons less CO2 per year.
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