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Hans De Keulenaer

SpringerLink - Journal of Housing and the Built Environment, Online First™ - 0 views

  • The continued outward growth from a central business district has been the dominant characteristic of most cities in Australia. However, this feature is seen as unsustainable and alternative scenarios to contain the outward growth are being proposed. Melbourne is currently grappling with this issue while simultaneously trying to reduce per capita greenhouse gas emissions. Housing size, style and its location are the three principal factors which determine the emissions from the residential sector. This paper describes a methodology to assess the combined impact of these factors on past and possible future forms of residential development in Melbourne. The analysis found that the location of the housing and its size are the dominant factors determining energy use and greenhouse gas emissions.
Phil Slade

http://ec.europa.eu/environment/integration/research/newsalert/pdf/230na6.pdf - 0 views

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    "Abandoned mines can be used as geothermal energy source Scientists have reviewed the potential for worldwide development of geothermal energy systems in old, unused mines. The technology is proven in many sites and could therefore help increase the share of renewable energy sources in the energy mix, offering sustainability and job creation, which may make mining operations more appealing to investors, communities and policymakers. (more...) Download article (PDF)"
Hans De Keulenaer

Life with My PG&E Smart Meter after One Year « Zap! Crackle! Pop! - 0 views

  • My Smart Meter is Irrelevant!  The surprising lesson in all of this is that my smart meter has almost nothing to do with any of these lessons.  The data I rely upon was available before my smart meter was installed and the monthly summaries are still the most useful data available for my purposes.  So where is the consumer benefit from smart meters?  As far as I can tell all the benefits are flowing to PG&E, but my rates are still going up.
Infogreen Global

British researchers to develop solar energy harvesting technology at nannoscale - 2 views

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    Provided new innovative methods of energy capture and storage are discovered, developed and exploited rapidly, the sun could provide sufficient energy to make up the shortfall. Nanoscale technologies can enable new solar energy harvesting solutions through the generation of novel materials that can be deployed to deliver commercially attractive efficiencies at a low cost and a reasonable lifetime of service.
Infogreen Global

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

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    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

Geothermal Turning Up the Heat at Los Humeros | Renewable Energy World North America Ma... - 1 views

  • CFE operates a total installed capacity of 58.2 GW, of which 964.5 MW is geothermal; a figure that is poised to increase still further.
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    A relatively rare story on geothermal energy. The potential of this technology is largely unknown - estimates vary tremendously. But with a potential to provide baseload electricity, this source may just have a role to play in the wind/PV/CSP electricity system of the future.
Hans De Keulenaer

Texans to Celebrate Their Vast Renewable Energy Resources During Texas Energy Independe... - 1 views

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    The development of renewables in an oil state - worth an article on Leonardo ENERGY? Or a story already told too many times?
Hans De Keulenaer

Economic viability of small to medium-sized reactors deployed in future European energy... - 2 views

  • Future plans for energy production in the European Union as well as other locations call for a high penetration of renewable technologies (20% by 2020, and higher after 2020). The remaining energy requirements will be met by fossil fuels and nuclear energy. Smaller, less-capital intensive nuclear reactors are emerging as an alternative to fossil fuel and large nuclear systems. Approximately 50 small (<300 MWe) to medium-sized (<700 MWe) reactors (SMRs) concepts are being pursued for use in electricity and cogeneration (combined heat and power) markets. However, many of the SMRs are at the early design stage and full data needed for economic analysis or market assessment is not yet available. Therefore, the purpose of this study is to develop “target cost” estimates for reactors deployed in a range of competitive market situations (electricity prices ranging from 45–150 €/MWh). Parametric analysis was used to develop a cost breakdown for reactors that can compete against future natural gas and coal (with/without carbon capture) and large nuclear systems. Sensitivity analysis was performed to understand the impacts on competitiveness from key cost variables. This study suggests that SMRs may effectively compete in future electricity markets if their capital costs are controlled, favorable financing is obtained, and reactor capacity factors match those of current light water reactors. This methodology can be extended to cogeneration markets supporting a range of process heat applications.
Hans De Keulenaer

Solar PV Becoming Cheaper than Gas in California? | Renewable Energy News Article - 4 views

  • What does that mean? It means that a large number of solar PV project developers believe they can deliver solar electricity at a very competitive price. And these aren't mega-projects either. All of the installations will be between 4.7 MW and 20 MW – a sweet spot for PV projects.
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    Possible article for LE? Grid parity seems to be approaching fast. Interesting point about the ' sweet spot'  for PV systems in the range of 4.7 to 20 MW.
Hans De Keulenaer

Natural Power and Rev1 Renewables join asset management forces in North America | Natur... - 3 views

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    With 5 million wind turbines needed (Stanford paper), asset management of renewable plant can only be a rising trend.
Hans De Keulenaer

Spain and Portugal Lead the Way on Renewable Energy Transformation | Renewable Energy N... - 4 views

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    Interesting comparison between 3 electricity systems enjoying similar climates
Phil Slade

Enphase Energy - Enlighten | Residential System - 7 views

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    "@davidroodman David Roodman My solar panels just completed their first megawatt-hour! http://bit.ly/dUc8V4 http://bit.ly/awm13C"
Daniel Stouffer

Energy Benchmarking - 2 views

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    Recently, the District of Columbia became one of the first government organizations in history to publicly promote its system-wide efficiency. The District started to invest in measures to better understand its use of energy throughout its almost 200 public buildings. By energy benchmarking, it hopes to cut back on its use of electricity, natural gas, and other fuels and consequently reduce its greenhouse gas emissions.
Hans De Keulenaer

Pecan Street Project Goes Live | Renewable Energy News Article - 0 views

  • Deployed by Austin-based Incenergy LLC, the home smart grid systems capture minute-to-minute energy usage for the whole home and six major appliances or systems. The project achieved an installed cost per home of $341 ($241 for equipment plus $100 for installation).
Hans De Keulenaer

Wave and Tidal Energy on the Rise: But Will it Work? | Renewable Energy News Article - 2 views

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    Tidal & wave is the wild card for the energy sector. With 45 kW/m power in wave fronts, it's a sources of renewables that is already concentrated by nature. But after many decades, the sector remains stuck in concepts and trials. The La Rance facility by EDF is operating since the 70s - if it had been a dream technology, we'd have seen more of this by now.
Hans De Keulenaer

Feed in tariffs friend or foe? | The Energy Collective - 3 views

  • As the World Future Energy Summit (WFES) draws to a close, I decided to tackle a topic that has been quietly popping up in many of the discussions and panel sessions this week.  In many places the topic of feed in tariffs is under heated debate.
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    This merits revisiting. With the recent collapse of the Spanish market, the correction of the German market and the expected collapse of the French PV market, FITs prove unsustainable or victim of their own success. Once the market picks up, governments can no longer support their price tab. Moreover, they are based on a false premise: the cost of taking a technology through the learning cycle is prohibitive - it requires too many tens of billions.
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    The topic is complex. Some underlying questions: * Why promotion of renewables was set-up? * What is the complete economic balance of renewables promotion? (expenses in subsidies, but savings in fuel imports, job creation, exports.... some interesting studies have been done on this - see for instance Macroeconomic study on the impact of Wind Energy in Spain - http://www.aeeolica.es/userfiles/file/aee-publica/091211-executive-summary-2009.pdf) * Is the allocation of subsidies cost done correctly? Electricity consumers often pay extra-cost, but benefits go to other pockets. Should there be a cost re-allocation to make the model sustainable? * Is regulatory framework evolving less rapidly than technology? FITs on PV in 2008 could be significantly reduced compared to FITs in 2007, and so on. How to accomodate regulation to that quick cost reduction? * Had governments defined a cap in global subsidies amount? Not really, this explains why they are all reacting to initial plans. * Development of technology and market drives costs down. Why some few countries should make this investment to the benefit of the entire world? * Have we excessively promoted market growth and neglected technology development? Are we paying too much for building power plants with primitive technology?
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    @Fernando - I agree that the topic is complex. However, I'd refrain from making claims on employment effects. This is an area where secondary effects are rarely taken into account. While I realise these claims are popular, basically nobody knows.
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