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There are more than 50 types of transmission lines in use, with even more in the R&D stage. The goals are reductions in line loss and line faults and greater overall grid reliability and efficiency. An increasing number of transmission line applications incorporate high-temperature superconducting technologies. New types of composite conductors are being developed to retain their strength and be more resistant to degradation at high temperatures. What’s more, this sector is seeing some exciting new wide-area management systems (WAMS) and other applications built on top of data from synchrophasors. Some are even proposing an “air traffic control system” for the national grid. Keep up to date with changing transmission technologies by scrolling down.
Results: 44 results found. You are on page 1 of 2 pages.
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Regional transmission operator PJM Interconnection is moving ahead with a program to beef up the digital intelligence of the country's largest electric transmission system by installing more advanced monitoring equipment. A $14 million DOE stimulus grant is covering half the cost of the synchrophasor deployment project. |
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This article underlines the potential advantages of an EPRI designed, first-of-its-kind DC superconducting cable that could be built with currently available materials. The new cable, which incorporates the best features of traditional and advanced bulk power transfer technologies, could be just what is needed to handle the changing transmission demands of the future. |
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A University of Houston researcher is working on a Smart Grid technology with high-temperature superconducting wire that could transmit as much as 10 times more power than copper cables.
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Midwest ISO becomes the first regional transmission operator (RTO) to move ahead with a synchrophasor deployment. The installation of more than 150 of the units is expected to help improve grid reliability and stability and may yield more transmission capacity. |
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Public opposition to overhead power lines is a given. But some companies are working in the other direction: under water. A number of underwater transmission projects are underway with more waiting in the wings. |
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A new report from the Electric Power Research Institute suggests efficiency gains using superconducting DC transmission lines could be significant. |
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Electric Power Research Institute (EPRI) researchers have an ongoing effort to research and develop sensor technologies and the associated infrastructure needed to aid utilities in addressing an aging transmission fleet, as well as to increase the capacity of existing assets, and help develop the next generation of equipment and technologies. Research and development efforts are underway in the following areas: Application of Sensor Information; Sensor Developments; Communication and Sensor Data Collection; Security; Power Harvesting and Algorithms and Data Visualization. In this white paper a review of these areas, from sensor applications to visuÂalization, is described for transmission lines and substaÂtions. |
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Electric utilities have pursued devices that can limit fault current levels in transmission and distribution systems while remaining “electrically invisible” under nominal conditions. These fault current limiters (FCLs) have the potential to significantly alleviate power system stress in locations where fault current magnitudes are expected to increase beyond the duty of existing circuit breakers. Today’s superconducting materials can meet the performance requirements of power system components. As a result, a significant portion of proposed FCL designs use superconducting materials to achieve the limiting action. This report investigates the current status of these superconducting fault current limiter (SFCL) technologies and describes ongoing efforts to use them in electric power grids. |
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This report describes the design of an interregional, superconducting DC cable system that is intended to achieve 10 GW power capacity with a nominal current and voltage of 100 kA and 100 kV. When installed, it will enhance the safety, reliability, and efficiency of the existing AC power grid and enable a level of bulk power transfer that is not conceivable with today's conventional technology. |
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This report is the fourth installment of a Technology Watch series on Superconducting Power Cables that summarize full-scale superconducting cable projects throughout the world. The series provides an overview of technical fundamentals and status updates on ongoing development efforts ranging from full-scale test installations to grid-deployed demonstration projects. This installment of the series covers ongoing full-scale utility installations and proposed demonstration projects worldwide. Information about the capabilities of the high-temperature superconductor (HTS) power cable manufacturers is also presented. |
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Areva SA has announced that the French consortium of Alstom SA and Schneider Electric SA has been selected to buy its transmission and distribution division, leaving international bidders General Electric and Toshiba in the cold. |
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Rice University researchers have developed carbon nanotubes hundreds of meters long which they say could be used as electricity transmission lines. These nanotubes may have other Smart Grid applications as well. |
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The Smart Grid is seeing explosive growth. And Areva T&D is one of the top performers in the Smart Grid space. So why is its Paris-based parent auctioning it off just as the going gets good? Jesse Berst tells you the rest of the story... including the reason General Electric may have trouble winning the auction no matter how much it bids. |
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Multi-state transmission utility American Transmission Company (ATC) is negotiating two DOE investment grants totaling $12.7 million for expansion of its Smart Grid technologies programs that include grid monitoring and fiber optics communications. |
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General Electric has submitted a binding offer for Paris-based Areva's transmission and distribution group, Areva T&D. It is one of three offers; other bidders are an all-French consortium and Toshiba Corp. of Japan. |
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The U.S. loses roughly 300 billion kWh of power from transmission and distribution line loss. A collaboration between EPRI, FERC, system operators and utilities are working to fix that problem and save power. |
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EPRI is working with a number of leading utility organizations to explore needs and research gaps in the area of reducing transmission losses and to identify steps that could lead to making our transmission system more efficient and ultimately help reduce the carbon footprint. This report provides a synthesis of the key findings and conclusions from a series of
workshops, including a plan for an industry-wide demonstration effort and next steps to improving the efficiency of the transmission system. |
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Renewable energy resources within the boundaries of at least 23 states could provide all of their internal electric power needs, according to a report from the Institute for Local Self-Reliance (ILSR). But the cost of transmission remains a roadblock. |
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The Tres Amigas project will link America's three power grids for the first time, and will be the country's first renewable energy market hub. It’s a cooperative effort between Smart Grid technologies provider American Superconductor and merchant transmission company Tres Amigas. |
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The videos capture a laboratory demonstration of the IntelliRupter(R) PulseCloser responding to a permanent phase-to-phase fault. IntelliRupter is configured in two different ways - a conventional recloser, then using pulseclosing. There is a dramatic reduction in arcing produced by using pulseclosing.
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Duke Energy created its first self-healing network using a network of intelligent switches and line sensors in Hendersonville, N.C. in June, 2009. The self-healing equipment reroutes power automatically when there is trouble to reduce the number of customers affected by power outages.
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Presented by WIRES, a national coalition of entities dedicated to investment in a strong, well-planned and environmentally beneficial high voltage electric transmission system in place, this presentation provides detailed illustrations of past transmission systems and the new systems needed for the Smart Grid. |
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GE Energy slide show presentation includes a roadmap for Smart Grid transmission. Topics include technologies and implementation. It also addresses distributed generation, microgrids, storage and related issues. |
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Areva has focused on building strategic partnering relationships, recognizing that utility relationships drive business its way. That may explain why this French company is third in global T&D sales. |
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ABB enjoys strong legacy relationships with leading utilities, but Jesse Berst suggests this international supplier needs to step it up in the Smart Grid space. |
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San Luis Valley is the Nations Best Model for Renewable
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With little fanfare, the San Luis Valley has already become the best model for distributed renewable energy generation in the West and maybe even the Nation.
When the first energy crisis shook ...