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Contents contributed and discussions participated by Hans De Keulenaer

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Hans De Keulenaer

Cooking Without Electricity - Bitten - Dining & Wine - New York Times Blog - 0 views

bitten.blogs.nytimes.com/...cooking-without-electricity

electricity

shared by Hans De Keulenaer on 24 Apr 08 - Cached
  • But the kitchen held my fascination. Without electricity, everything is fresh. The chef, Lenin, (by report, Lenin and Stalin are common names in Ecuador) 23 years old, has a kitchen garden with lettuces, pineapple, tree tomatoes, sweet potatoes, naranjillos (they resemble tomatillas, but within their ‘paper’ is a round morsel of sweetness), pumpkin squash, scallions, limes, peppers, oregano, curly parsley, coffee . . .
Hans De Keulenaer

Technology Review: Lithium-Ion Electric Car - 0 views

www.technologyreview.com/...20599

batteries electric vehicles mit storage technology lithium

shared by Hans De Keulenaer on 23 Apr 08 - Cached
  • Light and compact lithium-ion batteries sound great for electric vehicles--aside from their historical tendency to catch fire. But recent advances in electrode chemistry have made them much safer. One of the first vehicles to use the new batteries comes from a Norwegian company, Think. By year's end, Think plans to start selling ultracompact electric cars with a range of more than 100 miles. A123 Systems of Watertown, MA, and Indianapolis's EnerDel will provide the batteries.
Hans De Keulenaer

Technology Review: Off-the-Grid Housing - 0 views

www.technologyreview.com/...20604

offgrid zero energy homes

shared by Hans De Keulenaer on 22 Apr 08 - Cached
  • If you're worried about dependence on fossil fuels, the RuralZed timber-frame kit house can make you self-sufficient. The house's energy-conserving features include south-facing windowed walls, a solar-thermal water heating system, natural ventilation that exploits air pressure differentials, heat-absorbent cement or masonry walls and floors, and an airtight polymer membrane that seals seams and joints. Thanks to the resulting savings, the house's energy requirements can be met by roof-mounted solar panels and specially designed wind turbines that rotate around a vertical axis.
Hans De Keulenaer

Technology Review: Electric Cars Primer - 0 views

www.technologyreview.com/...20651

electric vehicles hybrid electric vehicles mit technology tutorial

shared by Hans De Keulenaer on 23 Apr 08 - Cached
  • Hybrids, plug-ins, and extended-range electric cars are hitting the market. Use this interactive primer to learn how they work.
Hans De Keulenaer

Peak Energy: We're Off To See The Wizard - Storing Energy Using Ammonia - 0 views

peakenergy.blogspot.com/...see-wizard-storing-energy.html

concentrated solar power storage technology

shared by Hans De Keulenaer on 23 Apr 08 - Cached
  • The first of these is being put together by a South Australian company called Wizard Power, which is trying to commercialise research from the Australian National University (ANU) - a solar concentrator dish and a closed loop thermochemical energy storage system using ammonia.
Hans De Keulenaer

Report: Update on State Renewable Portfolio Standards - 0 views

www.renewableenergyworld.com/...story

finance lbnl renewables usa

shared by Hans De Keulenaer on 23 Apr 08 - Cached
  • According to a new report, "Renewables Portfolio Standards in the United States: A Status Report with Data through 2007," released by the Lawrence Berkeley National Laboratory, a growing number of states are supporting renewable electricity through the creation of renewable portfolio standards (RPS). The report provides a comprehensive overview of early experience with these state-level RPS policies.
Hans De Keulenaer

Wacker & Schott Commission Wafer Plant - 0 views

www.renewableenergyworld.com/...story

photovoltaics silicon germany

shared by Hans De Keulenaer on 23 Apr 08 - Cached
  • Wacker Chemie AG and Schott Solar GmbH have officially commissioned a new solar silicon wafer factory in Jena, Germany. Wacker Schott Solar GmbH, a joint venture between the two companies, plans to ramp up the factory's annual capacity to 50 megawatts (MW) by the autumn of 2008, increasing total annual capacity to 120 MW by year's end.
Hans De Keulenaer

PSERC Seminars - 0 views

www.pserc.org/media_archive.html

electricity pserc webinars

shared by Hans De Keulenaer on 22 Apr 08 - Cached
  • The audio-slide productions of PSERC tele-seminars are publicly available. By clicking on a title below, a web-streaming version of the tele-seminars will begin. The audio-slide productions provide the audio and synchronized slides from the tele-seminar. These audio-slide productions are best viewed with Internet Explorer. The slides alone are available on the PSERC website, or browse to the webcast site. The tele-seminars are categorized by the following topics:
Hans De Keulenaer

Rhein on Energy and Climate : Bright Prospects for PV electricity - 0 views

rhein.blogactiv.eu/...t-prospects-for-pv-electricity

costs norway photovoltaics tutorial

shared by Hans De Keulenaer on 21 Apr 08 - Cached
  • The leading Norwegian manufacturer of photovoltaic cells and panels expects PV power generation costs to decline to only 8 cents/kWh as of 2010, provided installations benefit from at least 1800 hours/year of sunshine. That is the case in the countries around the Mediterranean, the southern parts of the USA, India, China, Australia and many other parts of the planet.
Hans De Keulenaer

Will Wind Power Make the Grid Less Reliable? - 0 views

www.renewableenergyworld.com/...story

intermittency reliability wind

shared by Hans De Keulenaer on 15 Apr 08 - Cached
  • My question is about the grid and wind power. If we were to add wind power into the generation mix, would the grid still be as reliable as it is today?
Hans De Keulenaer

Nanomaterial turns radiation directly into electricity - energy-fuels - 27 March 2008 -... - 0 views

environment.newscientist.com/...directly-into-electricity.html

electricity nuclear technology heating

shared by Hans De Keulenaer on 11 Apr 08 - Cached
  • Electricity is usually made using nuclear power by heating steam to rotate turbines that generate electricity. But beginning in the 1960s, the US and Soviet Union used thermoelectric materials that convert heat into electricity to power spacecraft using nuclear fission or decaying radioactive material. The Pioneer missions were among those using the latter, "nuclear battery" approach.
Hans De Keulenaer

Environmental Capital - WSJ.com : When Cheap Housing Isn't: How Transportation Changes ... - 0 views

blogs.wsj.com/...portation-changes-the-equation

costs economics oil transport usa homes

shared by Hans De Keulenaer on 11 Apr 08 - Cached
  • Ballooning gasoline prices aren’t just changing how people drive—they may soon change where people live. With gas stuck above $3.00 a gallon, those cheaper houses in the suburbs can be a money-losing proposition in the end.
Hans De Keulenaer

World's Largest Tidal Turbine Successfully Installed : MetaEfficient - 0 views

www.metaefficient.com/...ne-successfully-installed.html

ireland metaefficient ocean tidal world.records

shared by Hans De Keulenaer on 11 Apr 08 - Cached
  • The world’s largest tidal turbine, weighing 1000 tonnes, has been installed in Northern Ireland’s Strangford Lough. The tidal turbine is rated at 1.2 megawatts, which is enough to power a thousand local homes. It was built by Marine Current Turbines, and it will be the first commercial tidal turbine to produce energy, when it begins operation later this year.
Hans De Keulenaer

Alternative Energy in Israel - Israel Forum - 0 views

www.israelforum.com/...showthread.php

electric vehicles infrastructure israel

shared by Hans De Keulenaer on 11 Apr 08 - Cached
  • Project Better Place, owned by Israeli-American entrepreneur Shai Agassi, will provide lithium-ion batteries to power the cars and the infrastructure to refresh or replace them. One battery will enable the cars to travel 124 miles per charge. Project Better Place will install parking meter-like plugs on city streets and construct service stations along highways to replace the batteries. [2] Renault-Nissan will build the new cars and will offer a small number of their existing electric models, such as the “Megane” sedan, at prices roughly comparable to gasoline models. To promote this form of environmentally efficient transportation, the Israeli government cut the tax rate on cars powered by electricity to 10 percent (from 79 percent on ordinary cars) to encourage consumers to buy the vehicles once they become available. [3] This initiative will offer consumers an inexpensive car for which they will pay a monthly fee based on expected mileage.
Hans De Keulenaer

Aiming to put fuel cells to work - The Boston Globe - 0 views

www.boston.com/...ming_to_put_fuel_cells_to_work

europe fuel cells

shared by Hans De Keulenaer on 03 Apr 08 - Cached
  • Acumentrics, in fact, is moving toward commercial production of a compact fuel cell system to power and heat homes. Working with the Italian heating products company Merloni TermoSanitari, Acumentrics hopes to get these household units, small enough to hang on a wall, into European markets by 2010. Estimated price: $5,200.
Hans De Keulenaer

TheStar.com - Business - Switching off incandescents a no-brainer? - 0 views

www.thestar.com/...346692

canada efficiency lighting policy

shared by Hans De Keulenaer on 02 Apr 08 - Cached
  • Compact fluorescent light bulbs are much more energy efficient than incandescent lighting. No arguments there. But is it wise to outright ban the old Edison light bulb in Ontario? Across Canada?A year ago this writer would have had one answer: Definitely. But the answer, it turns out, shouldn't be so clear cut.At least that's the conclusion of a recent paper by Michael Ivanco, a senior scientist at Atomic Energy of Canada Ltd., and professor Bryan Karney (along with graduate student Kevin Waher) from the department of civil engineering at the University of Toronto.The three have authored a study called "To Switch or Not to Switch: A Critical Analysis of Canada's Ban on Incandescent Light Bulbs," and you may be surprised by the findings.
Hans De Keulenaer

Technology Review: Making Electric Vehicles Practical - 0 views

www.technologyreview.com/...20488

denmark electric vehicles infrastructure israel

shared by Hans De Keulenaer on 31 Mar 08 - Cached
  • A new approach to selling and recharging electric cars could overcome some of the basic issues that have kept them from being widely adopted. A startup called Project Better Place, which had the largest of any venture-funding round in 2007, raising $200 million, recently announced plans to install recharging infrastructure in Israel and Denmark and to sell electric cars using a business model much like that used today with cell phones.
Hans De Keulenaer

The Cost of Energy » Blog Archive » The revolution is in the second plug - 0 views

www.grinzo.com/...volution-is-in-the-second-plug

cars consumers electric vehicles

shared by Hans De Keulenaer on 31 Mar 08 - Cached
  • With all the talk recently of EV’s being tested in various countries and three models (Subaru R1e, Mitsubishi iMIEV, Nissan Denki Cube) potentially arriving in the US in just a few years, it’s worth revisiting once more the notion of how well such a product would be received here. My longtime position has been that if you make even minimally reasonable assumptions about the vehicles–they’re safe, they’re as efficient as one would expect a small, all-electric vehicle to be, they’re affordable, and they don’t have any weird “gotcha” details–they’ll find millions of happy owners.
Hans De Keulenaer

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

www.railwaygazette.com/...n_out_in_energy_storage-1.html

public transport supercapacitors

shared by Hans De Keulenaer on 31 Mar 08 - Cached
  • Hans De Keulenaer on 31 Mar 08
     
    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.
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