Latest
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Commentary
Transforming the U.S. Grid
Al Gore, in his recent New York Times op-ed titled “The Climate for Change,” calls for a “$400 billion investment over ten years to construct a national smart grid to distribute renewable energy.” Echelon supports these proposed investments. We also believe the answer is not just in constructing something new but in transforming the existing […]
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Gas
Consider CHP for LNG Vaporization
The conversion of liquefied natural gas (LNG) to pipeline-quality gas requires large quantities of low-grade thermal energy that may be available from industrial waste streams, steam power plants, or ocean water at the point of discharging LNG from the tanker. Alternatively, heat may be provided by the combustion of LNG or another fuel. In either case, the large temperature differences between these heat sources and the temperature of the LNG can be used to operate an engine that will offset or eliminate the pumping or fuel costs incurred.
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O&M
Hydrokinetic Plant Piggybacks on Existing Hydro Plant
Hydrokinetic energy — which generates power by using underwater turbines that harness moving water — is on the rise in the U.S. In January, the first U.S.-licensed, commercial, grid-connected hydrokinetic project installed the first of two 100-kW nameplate-rated turbines downriver from an existing run-of-river hydroelectric plant on the Mississippi River.
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Coal
CERAWeek 2009: Floundering Economy Eclipses Renewable, Carbon Plans
For the past 26 years, Cambridge Energy Research Associates (CERA) has hosted an annual conference in Houston that is world-renowned for its high-profile speakers and attendees’ willingness to exchange ideas and share industry forecasts. The consensus this year was that the power industry remains strong but market and political forces, often working at cross-purposes, make bringing any new power generation to market more problematic than ever.
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Business
2009 Electric Power Conference Preview
ELECTRIC POWER, the world’s most comprehensive conference covering power generation, will be presented at the Donald E. Stephens Convention Center in Chicago May 12 through May 14.
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Coal
Fossil Fuels + Solar Energy = The Future of Electricity Generation
Renewable energy, though still accounting for a comparatively small portion of overall supply, generates a larger portion of the world’s electricity each year. Combining many of the available solar energy conversion technologies with conventional fossil-fueled technologies could reduce fuel costs while simultaneously helping utilities that are struggling to meet their renewable portfolio goals.
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O&M
Fire Safety in Modern Hydroelectric Stations
It may seem counterintuitive, but fire can be a serious danger in hydropower plants. In some respects, the danger is even greater than in thermal power stations. Most U.S. hydro plants are 30 to 70 years old but can deliver another 20 or 30 years of service with upgrades — including state-of-the-art fire protection systems. The design options outlined here also apply in large part to other generating stations.
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Hydro
Fast-Tracking a Control System Retrofit
Upgrading a 1970s-era generator control system to new millennium technology in 12 days during a three-week shutdown would require careful planning and teamwork under any circumstances. The quick replacement of the governor and control system at the PT Inco smelter’s hydroelectric generation system is even more impressive because the facility is located in the middle of an Indonesian jungle.
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Legal & Regulatory
Transmission Superhighway or Interconnected Patchwork?
President Obama promoted "green energy" as a signature theme in his presidential campaign. During his first weeks, he reaffirmed his administration’s commitment to renewable resources. In a radio address, he promised to double the nation’s alternative energy capacity within three years and to construct a 3,000-mile transmission grid to "convey this new energy from coast to coast."
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Distributed Energy
In Search of Perfect Power
What do you do when your research institution is losing roughly half a million dollars annually as a result of multiple electricity outages — and electricity demand keeps rising? If you’re the Illinois Institute of Technology, you turn the challenge into a campuswide learning experience by teaming with the Galvin Electricity Initiative and other experts to design and construct a prototype Perfect Power System (PPS). Even during its implementation, the PPS promises to provide more reliable and sustainable electricity to the university at a lower cost than it had been paying.