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Hans De Keulenaer

ScienceDirect - The Electricity Journal : The Power of 5 Percent - 0 views

  • Even a 5 percent drop in peak demand can yield substantial savings in generation, transmission, and distribution costs – enough to eliminate the need for installing and running some 625 infrequently used peaking power plants and associated power delivery infrastructure.
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    So reduction in standby power is likely to lower the peak.
davidchapman

Building A Greener Grid - Forbes.com - 0 views

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    The paper itself is flawed suggesting that virtualisation can reeduce the number of servers required to 7% - enough to handle the average processing load. Webusers want instant reaction during the peak - for that you need spare capacity. Is this a surprise?
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    The Internet doesn't produce belching smokestacks or toxin-spewing drainpipes. Instead, the environmental impact of the data centers that power the Web and private networks is about as visible as the electrons moving around a company's servers. But visible or not, the ecological and economic costs of those servers are massive. A report released last week by the Environmental Protection Agency estimated that U.S. data centers (collections of computers used to power businesses' and government agencies' IT infrastructures and Web sites) consumed around 61 billion kilowatt-hours in 2006 at a cost of about $4.5 billion. That's about 1.5% of total U.S. electricity consumption, more than the electricity used by American televisions, or equivalent to the output of about 15 typical power plants
Hans De Keulenaer

Calif. transmission plan looks to connect renewable energy-rich areas | CivSource - 0 views

  • The state of California is trying to find ways to carry its abundance of renewable energy from areas that have it to areas that do not. Last week, the Renewable Energy Transmission Initiative (RETI) released Phase 2 of its conceptual transmission plan, designed to develop a renewable energy infrastructure.
Colin Bennett

The "wind man of India" and where he sees the industry going - 0 views

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    TT: The second concept we are looking at is the wind and solar hybrid. A lot of sites with solar has wind available. There is already an infrastructure build, substation, and other things. We are working on providing the technical solutions to our customers… if they want to put in solar they can, and we'll provide the integration part to the grid. That way they can reduce the overall project cost for the combination.
Energy Net

Peak Energy: The Renewables Hump: Digging Out of a Hole - 0 views

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    Jeff Vail has started a series looking at what I've long called the "EROEI hole" problem - making sure we don't leave the transition to renewables too late and find ourselves stuck in a situation where we have shrinking production of fossil fuels which are produced at ever lower EROEI values, thereby making constructing an alternative energy infrastructure a lot more problematic than it would be today - The Renewables Hump: Digging Out of a Hole. In the first post in this series, I introduced the general notion that renewable energy requires an up-front investment of energy, and that this may dramatically impact our ability to transition to a renewable-energy economy because the transition effort will initially exacerbate the very energy scarcity that is its impetus. Beyond this general notion that the transition to renewables first requires exacerbating our current energy scarcity, the time that it takes a renewable source of energy to return the up-front energy invested in it becomes especially critical. Here's a quick example (for the simplicity of these examples, I'm assuming that 100% of energy requirement is up-front with no maintenance requirement):
Colin Bennett

Utilities prepare to open natural gas pipes to biogas - 0 views

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    I have a story today on Enbridge Gas Distribution and its early investigation of biogas-injection into its natural gas pipelines. It's already being done in several European countries and some U.S. states, and is even mandated in countries such as Germany. Enbridge, and Terasen Gas in British Columbia, are among a number of gas utilities in North America that are trying to prepare themselves for the day when "bio-methane" will become a common component of natural gas pipeline infrastructure. Will the biogas quality affect the pipeline? Can it be used in all natural gas appliances without problem? How much does it cost to scrub out impurities? What's the best source: landfills, sewage treatment plants, biodigesters? All questions that are being asked and answered. Indeed, the Gas Technology Institute is in the middle of a $1.6 million (U.S.) study aimed as answering these questions.
Hans De Keulenaer

Virtual power plants could tame coming grid chaos - tech - 11 June 2009 - New Scientist - 0 views

  • Fears over energy security and climate change have led to record investment in renewable energy. But a major problem threatens to stall progress towards a more sustainable future: national electricity grids are far from ready to cope with the variable output from the new technologies. A solution might be at hand, though, and would not involve radical changes to the existing infrastructure. Treating groups of dispersed power sources, such as solar and wind generators, as a single entity could solve the problem, creating the virtual equivalent of a single large power station.
Colin Bennett

Energy storage - It's not all about batteries - 2 views

  • Compressed nitrogenThe technology works by using specially designed hydraulic wind turbines to compress nitrogen into the existing gas or oil pipeline infrastructure. When electricity needs to be generated anywhere along the pipeline, the nitrogen gas is released and expands to turn a turbine that generates electricity.
Hans De Keulenaer

COGEN Europe » Leading scientists propose smarter low carbon future - 0 views

  • A report launched today highlights critical challenges in the current ‘all-electric’ approach to decarbonisation of the UK energy system as this would increase our dependence on the electricity system to unprecedented levels. A system that makes greater use of cogeneration and district heating can however mitigate many of the more demanding aspects of the ‘all-electric’ approach. Used in combination with biomass and CCS technology for fossil fuels, cogeneration and district heating infrastructure have a key role to play up to 2050 and beyond. Find the full report  and the press release here.
Colin Bennett

Large-scale storage of wind energy using compressed nitrogen and old pipeline... - 0 views

  • The basic idea is that specially designed hydraulic wind turbines are used to compress nitrogen into existing gas or oil pipeline infrastructure, some of it unused throughout North America. Several hundred, even thousand, kilometres of pipeline could be filled with nitrogen and kept under pressure, in effect becoming a kind of massive nitrogen battery for wind. When electricity needs to be generated anywhere along the pipeline, the nitrogen gas is released and expands to turn a turbine that generates electricity. Wind, under this setup, suddenly becomes dispatchable and has baseload characteristics. Also, the pipeline eliminates the need for transmission lines.
Colin Bennett

Sizing the smart appliance opportunity - 1 views

  • AHAM lists the following six key features associated with smart appliances: Dynamic electricity pricing information is delivered to the user It can respond to utility signals Integrity of its operation is maintained while automatically adjusting its operation to respond to emergency power situations and help prevent brown or blackouts The consumer can override all previously programmed selections or instructions from the Smart Grid, while ensuring the appliance‘s safety functions remain active When connected through a Home Area Network and/or controlled via a Home Energy Management system, smart appliances allow for a total home energy usage approach. This enables the consumer to develop their own energy usage profile and use the data according to how it best benefits them It incorporates features to target renewable energy by allowing for the shifting of power usage to an optimal time for renewable energy generation, i.e., when the wind is blowing or sun is shining According to a research piece written by Zpryme, the smart appliance market is projected to grow from $3.06 billion in 2011 to $15.12 billion in 2015, with the U.S. accounting for 46.6 percent of that in 2011 and 36 percent in 2015. By contrast, China is expected to have an 11.6 percent share in 2011 and an 18.2 percent share in 2015. What's more, there are some strong drivers to smart appliance investment: Pricing: Bringing smart appliances to the mainstream means aligning ecological innovation with affordability Environment: With the build-out of metering and real-time pricing, consumers will see economic and environmental incentives for reducing power consumption first hand with their smart appliances Energy efficiency: When a consumer buys an appliance, they commit to paying both the first cost and the operating cost for the life of the product. And over the existence of the appliance, the energy cost to run it could be significantly greater than the initial cost Smart grid build-out: Smart appliance growth relies heavily on how quickly smart grid infrastructure can be rolled-out and readily accessible to communities Government subsidies: Like the Cash for Appliances program in the U.S., governments could and should play an active role in furthering the smart appliance agenda
Glycon Garcia

Mexican Wind Power Moving Ahead | Shannon Roxborough - 0 views

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    Mexico, one of the leading suppliers of oil to the United States, has increasingly embraced alternative energy in the face of dwindling crude output, infrastructure and investment. In response to energy and economic woes, President Felipe Calderón has pushed through energy reforms, pledging that Mexico will be producing a minimum of 2,500 megawatts of wind capacity by the time his term ends in 2012. So far, Mexico's progress has been impressive. In 2005, the nation only produced 3 megawatts electricity from wind. By the end of 2010, the country had 519 megawatts of installed wind power. And the future prospects look promising.
Colin Bennett

2 New & Innovative Ocean Wave Energy Devices - 2 views

  • Ocean Treader is a floating device. It will be tied up 1 – 2 miles offshore in ocean wave systems. It will not pose any obstruction on the shoreline. The theory has been put to test in wave tank. Now the company is producing a full size machine for offshore testing. Wave Treader has grown out of our work with Ocean Treader. Wave Treader uses its Sponsons and Arms and are mounted on the base of a static offshore structure. That structure can be a Wind Turbine or Tidal Turbine. By sharing the high infrastructure costs with another device, such as the foundation costs, cabling costs, etc., the economics of both devices are enhanced and the energy yield for a given sea area greatly improved.
Hans De Keulenaer

The Infrastucture Report - 11 views

It took me 4 years to respond, but that should not stop me. Energy touches on many aspects of society. We have for example the energy-water nexus which received a lot of attention over the past yea...

renewables electricity wind carbon usa buildings technology energy management efficiency transport industry

Hans De Keulenaer

Train can be worse for climate than plane - environment - 08 June 2009 - New Scientist - 0 views

  • True or false: taking the commuter train across Boston results in lower greenhouse gas emissions than travelling the same distance in a jumbo jet. Perhaps surprisingly, the answer is false. A new study compares the "full life-cycle" emissions generated by 11 different modes of transportation in the US. Unlike previous studies on transport emissions, Mikhail Chester and Arpad Horvath of the University of California, Berkeley, looked beyond what is emitted by different types of car, train, bus or plane while their engines are running and includes emissions from building and maintaining the vehicles and their infrastructure, as well as generating the fuel to run them.
Hans De Keulenaer

The transition to a Zero Emission Vehicles fleet for cars in the EU by 2050 - 1 views

shared by Hans De Keulenaer on 14 Nov 17 - No Cached
  • Decarbonising transport is central to achieving Europe’s policy commitments on climate change. T ransport is expected to deliver a 60% greenhouse gas (GHG) emissions reduction target of the EU for 2050. Achieving these commitments is expected to require a complete decarbonisation of the passenger car fleet. The more ambitious COP21 commitment to limit temperature rises to 1.5°C will also likely demand a complete decarbonisation of transport by 2050.
  • Attaining a 100% ZEV fleet by 2050 will require all new car sales to be ZEV by 2035 (assuming a similar vehicle life-time as today) and a substantially faster introduction of ZEVs and PHEVs than current policy and likely 2025 policies will achieve .
  • Compared to the CO2 emission reductions targeted in the current EU plan, the transition to a 100% ZEV car fleet by 2050 will result in an additional reduction of the cumulative CO2 emissions in the period 2020 and 2050 of 2.2 to 3.9 gigatonnes. The current EU White Paper for T ransport, targets to reduce the transport emissions by 60% compared to 1990.
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  • The best option for a rapid emission reduction is to focus on BEVs rather than PHEVs whereby the EU goes directly and aggressively to 100% ZEV sales. A scenario where PHEVs are first will push the strong ZEV growth further into the future and will ultimately require a larger effort at a later time. However, the impact of (an early fleet of) PHEVs on reducing ZEV costs, increasing consumer acceptance and promoting investments in charging / fuelling infra is difficult to predict / model and may play an important role as well.
  • The “Tank to Wheel” amount of energy needed for transport will be reduced by 78% compared to today for a transition to a BEV passenger car fleet. A transition to a 100% fuel cell electric vehicle fleet will result in a 46% reduction of energy for the EU’s car fleet.
  • Around 1,740 million barrels of oil per year could be saved by 2050 with the transition to a zero-emission passenger car fleet, the equivalent of € 78 billion at the current price of 45 $ per barrel.
  • The GHGs from oil will potentially get higher if shifting to for example oil sands .
  • Purchase cost parity is assumed to be achieved in the period 2022-2026 for a BEV and a comparable internal combustion engine vehicle (ICEV), with BEVs being comparatively lower in cost after that. Parity at Total Cost of Ownership (TCO) level will be achieved 2 to 4 years before the purchase cost parity is achieved. The average TCO for a ZEV will be €0.04 to €0.06 per kilometre less than an ICEV by 2030.
  • This represents societal savings of € 140 billion to € 210 billion per year for a 100% ZEV EU car fleet.
  • A mass market for ZEV cars will create synergy for the cost competitive development of a ZEV LCV (Light Commercial V ehicles) market representing 17% of the light vehicles emissions. It will also accelerate the development of a HDV (Heavy Duty V ehicle) ZEV / PHEV market for passenger and goods transportation. It will also free up advanced biofuels for other transport sectors.
  • A lithium-ion battery manufacturing capacity of 400 to 600 Gigawatt hours will be required at the point where 100% of the passenger cars in Europe sold will be BEV . This is the equivalent of around 10 to 14 “Giga factories” representing a value of €40 to 60 billion per year for cars alone.
  • In addition, as BEVs have superior driving performance characteristics and people used to driving electric do not return to ICEVs, the transition may become demand driven once the price, range and infrastructure barriers have been removed.
Hans De Keulenaer

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

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    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.
Arabica Robusta

Water, Capitalism and Catastrophism » CounterPunch: Tells the Facts, Names th... - 0 views

  • Taking the holistic view, one can understand how some of the most basic conditions of life are threatened by a basic contradiction. Civilization, the quintessential expression of Enlightenment values that relies on ever-expanding energy, threatens to reduce humanity to barbarism if not extinction through exactly such energy production.
  • or every farmer or rancher who has leased his land for drilling, there are many homeowners living nearby who get nothing but the shitty end of the stick: pollution, noise and a loss of property value.
  • What gives the film its power is the attention paid to people like Stevens who organized petition drives and showed up at town council meetings to voice their opposition to fracking. They look like Tea Party activists or Walmart shoppers, mostly white and plain as a barn door, but they know that they do not want drilling in their townships and are willing to fight tooth and nail to prevent it. For all of the left’s dismay about its lack of power, the film’s closing credits reveal that there are 312 local anti-fracking groups in Pennsylvania made up of exactly such people who will likely be our allies as the environmental crisis deepens.
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  • In the collection “Catastrophism: The Apocalyptic Politics of Collapse and Rebirth”, Eddie Yuen takes issue with an “apocalyptic” streak in exactly such articles since they lead to fear and paralysis. A good deal of his article appears to take issue with the sort of analysis developed by Naomi Klein, a bugbear to many convinced of the need to defend “classical” Marxism against fearmongering. Klein is a convenient target but the criticisms could easily apply as well to Mike Davis whose reputation is unimpeachable. Klein’s latest book has served to focus the debate even more sharply as her critics accuse her of letting capitalism off the hook.
  • While I am inclined to agree with Malm that it is the drive for profit that explains fracking and all the rest, and that the benefits of energy production are not shared equally among nations and social classes, there is still a need to examine “civilization”. If we can easily enough discard the notion of the “Anthropocene” as the cause of global warming, the task remains: how can the planet survive when the benefits of bestowing the benefits of “civilization” across the planet so that everyone can enjoy the lifestyle of a middle-class American (or German more recently) remains the goal of socialism?
  • Ironically, this was the same argument made in the NY Times on April 14th by Eduardo Porter in an article titled “A Call to Look Past Sustainable Development”. He refers to the West’s environmental priorities blocking the access to energy in countries such as Nepal, Bangladesh and Cambodia now flocking to China’s new infrastructure investment bank that will most certainly not be bothered by deforestation, river blockage by megadams, air pollution and other impediments to progress.
  • Yuen’s article is filled with allusions to Malthusianism, a tendency I have seen over the years from those who simply deny the existence of ecological limits. While there is every reason to reject Malthus’s theories, there was always the false hope offered by the Green Revolution that supposedly rendered them obsolete. In 1960 SWP leader Joseph Hansen wrote a short book titled “Too Many Babies” that looked to the Green Revolution as a solution to Malthus’s theory but it failed to account for its destructive tendencies, a necessary consequence of using chemicals and monoculture.
  • To think of a way in which homo sapiens and the rest of the animal and vegetable world can co-exist, however, will become more and more urgent as people begin to discover that the old way of doing things is impossible.
Colin Bennett

Solar balloons to power remote areas? | Environment | Reuters - 0 views

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    HAIFA, Israel (Reuters) - Giant solar energy balloons floating high in the air may be a cheap way to provide electricity to areas lacking the land and infrastructure needed for traditional power systems, researchers in Israel say.
Colin Bennett

Go-ahead for wind to generate 70,000 jobs/offshore equipment - 2 views

  • “I want us to be a world leader in offshore wind energy,” he said, announcing the national infrastructure plan
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