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Improving Energy Efficiency in the Home

Topics. How energy is producedHow the US uses energyHow energy is used in the homeEnergy efficient technologiesHow governments are encouraging energy conservation. How Energy is Produced. Burn fossil fuels and create steam to turn turbines (33-35% efficient)Burn fossil fuels and use gas to turn turbines (less efficient)Combination is 50-60% efficientCombines heat and power generators produce electricity and heat.

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Improving Energy Efficiency in the Home

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    1. Improving Energy Efficiency in the Home By Karel Schnebele

    2. Topics How energy is produced How the US uses energy How energy is used in the home Energy efficient technologies How governments are encouraging energy conservation

    3. How Energy is Produced Burn fossil fuels and create steam to turn turbines (33-35% efficient) Burn fossil fuels and use gas to turn turbines (less efficient) Combination is 50-60% efficient Combines heat and power generators produce electricity and heat

    5. Energy Production in the US

    6. US Greenhouse Gases CO2 emissions from electricity generation increased 1.2% from 2003-2004 Sulfur emissions decreased by 3.2% Nitrogen Oxides emissions decreased by 8.7% CO2 from 2,438 million metric tons to 2,467 million metric tons Sulfur from 10.6 to 10.3 million metric tons Nitrogen Oxides from 4.3 to 4.0 million metric tons Due to federal and State pollution control regulations on power plant operations, including requiring the installation of new pollution control equipment. Also increased use of subbituminous coal. Because of its typically low sulfur content and combustion temperature, subbituminous coal generally emits less sulfur dioxide and nitrogen oxides when burned than other coals. CO2 from 2,438 million metric tons to 2,467 million metric tons Sulfur from 10.6 to 10.3 million metric tons Nitrogen Oxides from 4.3 to 4.0 million metric tons Due to federal and State pollution control regulations on power plant operations, including requiring the installation of new pollution control equipment. Also increased use of subbituminous coal. Because of its typically low sulfur content and combustion temperature, subbituminous coal generally emits less sulfur dioxide and nitrogen oxides when burned than other coals.

    7. Energy Uses in the Home

    8. Heating Homes (45%) Furnaces and Boilers 75-97% efficient Electrical resistance 95-100% efficient Colder regions need more efficient furnaces Upgrading from 56-90% will save 1.5 tons of CO2 emissions per year

    9. Cooling Systems (45%) Evaporative Cooling Evaporate water into air Cost less to install and operate but requires more maintenance Central Air Conditioning US homes release 100 million tons CO2 annually

    10. Sealing and Insulating

    11. Air leaks account for 25-40% of heating and cooling costs Insulation works best in well sealed areas

    12. Water Heating (11%) Storage 20-80 Gallons Standby Losses Demand (Instantaneous) 2-5 Gallons/minute Heat Pump Ambient air temp 40-90°F Works best in warm climates Solar Requires backup system Can reduce bills by 50-80%

    13. Government Incentives and Regulations US Energy Star Program and tax credits Canadian EnerGuide for Houses Program England Home Energy Report

    14. Tax Incentives The new energy bill provides tax credits for improvements made in 2006 and 2007 A one time tax credit of up to $500 Receive credit for upgrading Windows Furnaces Air conditioners Adding insulation Credit for installing photovoltaic cells

    15. Energy Star Program Energy Star homes are 30% more efficient then 1993 homes or 15% more efficient then state energy codes Products and appliances use less energy then the standard If 1 in 10 homes used efficient heating/cooling equipment it would reduce greenhouse gas emissions by 17 billion lbs

    16. Home Electronics 75% of the power supplied to electronics is used when the product is turned off Energy Star electronics use up to 50% less energy when turned off If all DVD players were Energy Star approved it would be the equivalent of taking 75,000 cars off the road

    17. US Regulations Increasing efficiency standards for appliances Central air conditioners must reach SEER of 13 or higher after 2006 Phasing out of HCFCs and introduction of ozone-safe HFCs by 2030

    18. EnerGuide for Houses Canadian attempt to honor Kyoto Protocol Goal of upgrading 20% of low rise homes to energy efficiency by 2010 Homeowners receive grants from government for upgrading homes

    19. Home Energy Report Implement in 2007 Provides houses with score to describe energy efficiency and CO2 emission Amend building regulations

    20. References EnerGuide for Houses http://oee.nrcan.gc.ca/residential/personal/index.cfm?attr=4 Energy Star Program http://www.energystar.gov/ US Department of Energy- Energy Efficiency and Renewable Energy http://www.eere.energy.gov/consumer/your_home/ US EPA http://yosemite.epa.gov/opa/admpress.nsf/0/e7ab9ab426b0a68785256f38006bcff3?OpenDocument Energy Efficiency Partnership for Homes http://www.est.org.uk/partnership/energy/index.cfm?mode=view&news_id=466 Energy Information Administration http://www.eia.doe.gov/cneaf/electricity/epa/epa_sum.html Department of Finance and Personnel http://www.dfpni.gov.uk/buildingregulations/

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