Advanced Energy Perspectives

Advanced Energy Technology of the Week: Fuel Cells

Posted by Maria Robinson

Nov 25, 2014 10:00:00 AM

The U.S. Environmental Protection Agency’s (EPA’s) plan to regulate carbon emissions is just the latest challenge facing the U.S. electric power system. Technological innovation is disrupting old ways of doing business and accelerating grid modernization. Earlier this year, AEE released Advanced Energy Technologies for Greenhouse Gas Reduction, a report detailing the use, application, and benefits of 40 specific advanced energy technologies and services. This post is one in a series drawn from the technology profiles within that report.

Fuel_Cells-crop_for_less_sky

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Advanced Energy Technology of the Week: Biomass Co-firing

Posted by Maria Robinson

Nov 18, 2014 1:12:32 PM

The U.S. Environmental Protection Agency’s (EPA’s) plan to regulate carbon emissions is just the latest challenge facing the U.S. electric power system. Technological innovation is disrupting old ways of doing business and accelerating grid modernization. Earlier this year, AEE released Advanced Energy Technologies for Greenhouse Gas Reduction, a report detailing the use, application, and benefits of 40 specific advanced energy technologies and services. This post is one in a series drawn from the technology profiles within that report.

Cofired_Biomass

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Topics: Advanced Energy Technology of the Week

Advanced Energy Technology of the Week: Biomass Power

Posted by Maria Robinson

Nov 11, 2014 6:49:57 PM

The U.S. Environmental Protection Agency’s (EPA’s) plan to regulate carbon emissions is just the latest challenge facing the U.S. electric power system. Technological innovation is disrupting old ways of doing business and accelerating grid modernization. Earlier this year, AEE released Advanced Energy Technologies for Greenhouse Gas Reduction, a report detailing the use, application, and benefits of 40 specific advanced energy technologies and services. This post is one in a series drawn from the technology profiles within that report.

Biomass_plant

Solid biomass has been used as fuel in power plants for many decades. The dominant technology is direct combustion in which biomass is burned in a boiler to generate high-pressure steam, which is used to turn a steam turbine-generator set. Other technologies also exist, such as gasification, in which the biomass is first converted to a synthesis gas that can be burned in boilers, reciprocating engines and gas turbines. Solid biomass resources include logging and agriculture residues, forest products residues such as sawdust, bark and spent pulping liquors, as well as dedicated energy crops, both woody and herbaceous.

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Topics: Advanced Energy Technology of the Week

Advanced Energy Technology of the Week: Efficient Water Heaters

Posted by Maria Robinson

Nov 4, 2014 3:13:54 PM

The U.S. Environmental Protection Agency’s (EPA’s) plan to regulate carbon emissions is just the latest challenge facing the U.S. electric power system. Technological innovation is disrupting old ways of doing business and accelerating grid modernization. Earlier this year, AEE released Advanced Energy Technologies for Greenhouse Gas Reduction, a report detailing the use, application, and benefits of 40 specific advanced energy technologies and services. This post is one in a series drawn from the technology profiles within that report.

Efficient_Water_Heaters

Water heating technology spans a range of options, from conventional technologies to renewable systems. Conventional storage water heaters typically run on natural gas or electricity and keep water hot in an insulated tank and ready for use at all times. They have a simple design and are relatively low cost, but they also have standby losses associated with storing hot water for long periods of time. High-efficiency models are available that increase the heat transfer efficiency and reduce the standby losses with more insulation. Tankless (instantaneous) water heaters eliminate standby losses by heating water on demand, creating a continuous supply, though there may be a limit on simultaneous use of hot water devices. Heat pump water heaters are electric water heaters that use heat pump technology to increase efficiency over conventional electric resistance units. Solar hot water systems harness the sun’s energy using solar thermal collectors. They typically require a larger storage tank and a backup fuel (such as electricity or natural gas) for times when the sun cannot produce enough hot water.

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Topics: Advanced Energy Technology of the Week

Advanced Energy Technology of the Week: Waste Energy Recovery (WER)

Posted by Maria Robinson

Oct 28, 2014 5:42:48 PM

The U.S. Environmental Protection Agency’s (EPA’s) plan to regulate carbon emissions is just the latest challenge facing the U.S. electric power system. Technological innovation is disrupting old ways of doing business and accelerating grid modernization. Earlier this year, AEE released Advanced Energy Technologies for Greenhouse Gas Reduction, a report detailing the use, application, and benefits of 40 specific advanced energy technologies and services. This post is one in a series drawn from the technology profiles within that report.

Waste_Energy_Recovery

Waste Energy Recovery (WER) describes any process in which energy that would typically be “thrown away” is captured and put to use (for this reason, WER is sometimes also called recycled energy). In broad terms, there are three types of waste energy sources suitable for recovery and conversion to electricity: waste heat, excess pressure in steam and other industrial process streams that is normally dissipated, and residual fuel value in industrial process streams (purge gases, off-gases, etc.). WER can be used to generate electricity or to produce useful thermal energy for industrial processes. The amount and type of useful energy produced depends on the nature of the process.

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Topics: Advanced Energy Technology of the Week

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Advanced Energy Perspectives is AEE's blog presenting news, analysis, and commentary on creating an advanced energy economy. Join the conversation!

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