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Ways to Make Your Home More Energy Efficient

Ways to Make Your Home More Energy Efficient. Statistics. According to the U.S Energy Information Administration In 2008, the average annual electricity consumption for a U.S. residential utility customer was 11,040 kWh, an average of 920 kilowatt-hours (kWh) per month.

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Ways to Make Your Home More Energy Efficient

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  1. Ways to Make Your Home More Energy Efficient

  2. Statistics • According to the U.S Energy Information Administration In 2008, the average annual electricity consumption for a U.S. residential utility customer was 11,040 kWh, an average of 920 kilowatt-hours (kWh) per month. • For the state of Missouri the monthly average consumption was 1,098 kWh. On average in Missouri the electrical bill is $ 87.83

  3. The estimate of the pounds of air pollutants caused by the electricity in homes during one year: • 41 pounds of nitrogen oxides • 77 pounds of sulfur dioxide • 22,536 pounds of carbon dioxide • This means that Co2 emissions from electric consumptions are equivalent to: • 1,150 gallons of gasoline consume. • Carbon sequestered by 262 tree seedlings grown for 10 years • 426 propane cylinders used for home barbeques • 23.8 barrels of oil consumed.

  4. Green Power • Electricity supplied in whole or in part from renewable energy sources (wind and solar power, geothermal, and various forms of biomass) • More than 50% of retail customers in the United States now have an option of purchasing a green power product directly from their electricity supplier. • Also, consumers can support renewable energy development through the purchase of green energy certificates. • Buying Green Power: http://apps3.eere.energy.gov/greenpower/buying/buying_power.shtml

  5. SOLAR POWER

  6. Photovoltaic Systems • PV gets its name from the process of converting light (photons) to electricity (voltage). • Solar panels used to power homes and businesses are typically made from solar cells combined into modules that hold about 40 cells. • A typical home will use about 10 to 20 solar panels to power the home. • The panels are mounted at a fixed angle facing south, or they can be mounted on a tracking device that follows the sun, allowing them to capture the most sunlight.

  7. Many solar panels combined together to create one system is called a solar array. • Traditional solar cells are made from silicon, are usually flat-plate, and generally are the most efficient. • Second-generation solar cells are called thin-film solar cells because they are made from amorphous silicon or non silicon materials such as cadmium telluride. • Thin cells can double as rooftop shingles and tiles, building façades, or the glazing for skylights.

  8. Third-generation solar cells are being made from variety of new materials besides silicon, including solar inks using conventional printing press technologies, solar dyes, and conductive plastics. http://www.youtube.com/watch?v=DFDn6eTV0jQ&feature=player_embedded

  9. Solar Water Heating • Is a cost-effective way to generate hot water for your home. They can be used in any climate, and is free. • Typically, up to 30% of a home’s energy consumption is used just to heat water for bathing, laundry and cleaning. • Installing a solar hot water system is typically the first step when turning to the sun for energy. • Solar water heating systems include storage tanks and solar collectors.

  10. Solar storage tanks have an additional outlet and inlet connected to and from the collector. • In two-tank systems, the solar water heater preheats water before it enters the conventional water heater. In one-tank systems, the back-up heater is combined with the solar storage in one tank. • There are two types of solar water heating systems: active, which have circulating pumps and controls, and passive, which don't.

  11. WIND POWER

  12. Wind Power & Residential Wind Turbines • Is the process by which the wind is used to generate mechanical power or electricity. • Wind turbines convert the kinetic energy in the wind into mechanical power which can be used for specific tasks (grinding grain or pumping water, or for electricity). • The wind turns the blades, which spin a shaft, which connects to a generator and makes electricity.

  13. Types and Sizes • Types of Wind Turbines: • Horizontal Axis • Vertical Axis • Sizes • Utility-scale turbines range in size from 100 kilowatts to as large as several megawatts. • Single small turbines, used for homes, are below 100 kilowatts. • http://www.youtube.com/watch?v=1CloycIl5vU

  14. GEOTHERMAL

  15. Geothermal Energy • Comes from The Earth's heat, which constantly flows outward from its core, and provides an enormous source of energy. • You can use geothermal energy, no matter where you live in the United States, to heat and cool your home using a geothermal or ground-source heat pump. • Geothermal heat pumps (GHPs) use the constant temperature of the earth (depending on latitude, ground temperatures range from 45°F to 75°F ) as the exchange medium instead of the outside air temperature. • This allows the system to reach fairly high efficiencies (300%-600%) on the coldest of winter nights, compared to 175%-250% for air-source heat pumps on cool days.

  16. Benefits • Geothermal Energy uses 25%–50% less electricity than conventional heating or cooling systems. • According to the EPA, geothermal heat pumps can reduce energy consumption—and corresponding emissions—up to 72% compared to electric resistance heating with standard air-conditioning equipment. • GHPs also improve humidity control by maintaining about 50% relative indoor humidity, making GHPs very effective in humid areas. • http://www.youtube.com/watch?v=-ajqiPe_9Ko&feature=related

  17. BIOMASS

  18. Biomass and Biomass Power • Biomass energy is renewable energy made from any organic material from plants or animals. • Biomass power technologies convert renewable biomass fuels to heat and electricity using processes similar to that used with fossil fuels. • Next to hydropower, more electricity is generated from biomass than any other renewable energy resource in the United States. • A key attribute of biomass is its availability upon demand - the energy is stored within the biomass until it is needed.

  19. Classes of Biopower systems • Direct-Fired • Most common system, and similar to most fossil-fuel fired power plants. • The biomass fuel is burned to produce high-pressure steam. This steam is introduced into a steam turbine which is connected to an electric generator. • Its efficiency is limited. Boilers are typically in the 20-50 MW range, compared to coal-fired plants in the 100-1500 MW range.

  20. The actual Biopower plant efficiencies are in the low 20% range. • Cofiring • Substitutes biomass for a portion of coal in an existing power plant furnace. • It is the most economic near-term option for introducing new biomass power generation. • Compared to the coal it replaces, biomass reduces sulphur dioxide (SO2), nitrogen oxides (NOx), and other air emissions. • Biomass Gasifiers • Operate by heating biomass where the solid biomass breaks down to form a flammable gas. • The biogas can be cleaned and filtered to remove problem chemical compounds.

  21. The gas can be used in more efficient power generation systems called combined-cycles, which combine gas turbines and steam turbines to produce electricity. • The efficiency of these systems can reach 60%. • Modular Systems • Use some of the same technologies mentioned above, but on a smaller scale. • Is more applicable to villages, farms, and small industry.

  22. MISSOURI REBATE PROGRAMS AND TAX CREDITS http://www.dsireusa.org/incentives/index.cfm?re=1&ee=1&spv=0&st=0&srp=1&state=MO

  23. Other ways to save energy

  24. Ten Ways to Save at Home • Get Energy Star qualified products. • Replace conventional bulbs in your 5 most frequently used light fixtures with bulbs that have the Energy Star. • Heat and Cool Smartly. clean air filters regularly and have your heating and cooling equipment tuned annually . • Seal and insulate your home; the biggest leaks are usually found in the attic and basement. • Use Green Power.

  25. Reduce, Reuse, and Recycle • Be green in your yard by using a push mower that does not contaminate. Composting your food and yard waste reduces the amount of garbage that you send to landfills . • Use water efficiently. Municipal water systems require a lot of energy to purify and distribute water to households, and saving water, especially hot water, can lower greenhouse gas emissions. Be smart when irrigating your lawn; only water when needed (mornings) • SPREAD THE WORD.

  26. Works Cited www.dsireusa.org www.eia.doe.gov www.epa.gov www.energy.gov www.solarenergy.com www.awea.org www.nrel.gov http://apps3.eere.energy.gov/ http://www.energystar.gov/index.cfm?c=products.es_at_home

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