EML4930L2 - Sustainable Energy Science and Engineering...

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S ustainable E nergy S cience and E ngineering C enter The Electricity Grid Source: Transforming the electricity infrastructure by Gellings & Yeager, Physics Today, December 2004. Aging infrastructure One utility company estimates that it spends $1.50 to deliver power for every $1.00 it spends producing it. Power transmission also incurs some electricity losses. The Energy Information Administration estimates that approximately 9% of the power produced at a central generating plant is lost in delivery.
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S ustainable E nergy S cience and E ngineering C enter Source: Transforming the electricity infrastructure by Gellings & Yeager, Physics Today, December 2004. Cascading Outage 14th August 2003 Blackouts over part of Canada and much of Northeast
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S ustainable E nergy S cience and E ngineering C enter Transmission Accommodate a request to transmit energy Source: Transforming the electricity infrastructure by Gellings & Yeager, Physics Today, December 2004.
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S ustainable E nergy S cience and E ngineering C enter Large Small Fossil-Fueled Renewable- Fueled Hybrids Diesels Microturbines Fuel Cells Coal-fired Boilers Coal-fired Fluid Bed Combined Cycle Combustion Turbine Solar Central Receiver Wind Farms Solar Trough Biomass Wind Machines Solar Dish Photovoltaics Energy Efficiency Storage Source: Mervin Brown, NREL Fossil and Renewable Energy Domains
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S ustainable E nergy S cience and E ngineering C enter Micropower Avg. Generation Cost, $/MW 1990 1980 50 200 600 1,000 1930 1950 1970 Optimal generation plant size for a single plant based on cost per megawatt [MW], 1930-1990 Source: Charles E. Bayless, “Less is More: Why Gas Turbines Will Transform Electric Utilities.” Public Utilities Fortnightly 12/1/94 Plant Size (MW) Source: Mervin Brown, NREL
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