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Hans De Keulenaer

Economic viability of small to medium-sized reactors deployed in future European energy markets - 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

High renewables penetration means eye-watering costs and massive overbuilding « SeekerBlog - 0 views

  • As I see it, to prove that, it would be necessary to have sensors at all locations (or at least a large number of locations) where it would be reasonably possible to have wind and solar power installations. The data would have to be transmitted, in real-time, to a central location where it would be continuously analyzed to see how much power would be available reliably with no interruptions. So far as I know, that has never been done.
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    Interesting idea to simulate the integration of load with renewable generation.
davidchapman

Falling 10GbE Prices Spell Doom for Fibre Channel - 0 views

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    This article suggests that 10Gb ethernet (copper) is about to take over the (optical) fibre channel for storage area networks. Caution: these networks are usually physically small and dense so cable lengths are short. The added value is high enough to justify the costs (Cost per switsch port still ~100 times higher than 1Gb, tricky cable installation).The comments at the end of the article that imply that 10Gb will be common are unconvincing.
Jeff Johnson

Renewable Energy Scorecard (Honeywell) - 0 views

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    Honeywell (NYSE: HON) today announced it has developed a first-of-its-kind selection tool that quickly provides customers with the data to make an informed buying decision. Unveiled at the annual Honeywell Users Group for Buildings conference, the Renewable Energy Scorecard™ analyzes the variables for any given location to pinpoint the technology with the most significant environmental and economic drivers.
Hans De Keulenaer

China Invested $88 billion in High Speed Rail in 2009 - HSR | Clean Fleet Report - 1 views

  • China’s Ministry of Railways spent $88 billion on HSR projects in 2009 – part of an existing $300 billion plan to expand and connect all of the country’s major cities with a projected 10,000 miles of dedicated HSR lines by 2020.
Hans De Keulenaer

Lightbulbs Could Replace Wi-Fi Hotpsots - 0 views

  • Boston University's College of Engineering is launching a program, under a National Science Foundation grant, to develop the next generation of wireless communications technology based on visible light instead of radio waves. Researchers expect to piggyback data communications capabilities on low-power light emitting diodes, or LEDs, to create "Smart Lighting" that would be faster and more secure than current network technology.
Hans De Keulenaer

Brilliant New Book Teaches You How to Evaluate Sustainable Energy Claims « Johnny Rook's Climaticide Chronicles - 0 views

  • Unsettlingly, usually, these discussions involve more strong opinions than data. Some people believe that one of these alternative (they are not all sustainable) energy options is the silver bullet that will solve both the climate and the energy crisis. Other argue that there is no silver bullet and that what is required are a variety of silver BB’s: a mixture of technologies, along with greater energy efficiency and preservation of habitat (forests). Do we really just need to build huge number of nuclear plants or wind farms to solve the problem? If, instead, we are going to use a mix of alternative energy sources, which ones should we use and in what quantities?
davidchapman

Intel cranks up the speed on fiber for computers | Tech news blog - CNET News.com - 0 views

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    Researchers at Intel this week are showing off a silicon modulator that can pass 40 gigabits of data in a second, a new record that indicates that fiber-inside-computers is really coming.
davidchapman

Wiley InterScience: Journal: Abstract - 0 views

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    As fuel cell technologies are developed, hydrogen-powered vehicles are receiving more interest. The hydrogen economy, particularly hydrogen-powered vehicle penetration into the Korean transportation market, is studied in this paper. Market share was predicted using the currently available data. The results showed that the hydrogen era will not be as bright as predicted by many people. The main barrier is the fuel cell cost.
Sergio Ferreira

wattwatt - community for individuals interested in electrical energy efficiency - Cable impedance values for various harmonics? - 0 views

  • Nodal analysis or link analysis of the Harmonic prone Electrical supply installation, its important to know the values of impedances offered by power cables for different harmonics present
  • Most of Power Cable manufacturers do not give such data. Even after asking them, it's un-available with them.
Hans De Keulenaer

A new way to store sustainable energy: 'Information batteries' -- ScienceDaily - 4 views

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    "What if surplus renewable energy could be stored as computation instead? That's the thinking behind "information batteries," a new system proposed by Raghavan and Jennifer Switzer, a Ph.D. student from UC San Diego, published recently in the ACM Energy Informatics Review."
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