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Energy efficiency
- 2. What is EnergyEfficiency? Energy-efficient Appliances Energy Conservation Sustainable Energy Organizations promoting energy efficiency Conclusion
- 3. Efficient energy use,sometimes simply called energy efficiency, is the goal of efforts to reduce the amount of energy required to provide products and services. For example, insulating a home allows a building to use less heating and cooling energy to achieve and maintain a comfortable temperature. Installing fluorescent lights or natural skylights reduces the amount of energy required to attain the same level of illumination compared to using traditional incandescent light bulbs. Compact fluorescent lights use two-thirds less energy and may last 6 to 10 times longer than incandescent lights. Improvements in energy efficiency are most often achieved by adopting a more efficient technology or production process. There are various motivations to improve energy efficiency. Reducing energy use reduces energy costs and may result in a financial cost saving to consumers if the energy savings offset any additional costs of implementing an energy efficient technology. Reducing energy use is also seen as a key solution to the problem of reducing greenhouse gas emissions.
- 4. According to theInternational Energy Agency, improved energy efficiency in buildings, industrial processes and transportation could reduce the world's energy needs in 2050 by one third, and help control global emissions of greenhouse gases. Energy Efficiency and renewable energy are said to be the twin pillars of sustainable energy policy. In many countries energy efficiency is also seen to have a national security benefit because it can be used to reduce the level of energy imports from foreign countries and may slow down the rate at which domestic energy rates are depleted.
- 6. Modern energy-efficient appliances,such as refrigerators, freezers, ovens, stoves, dishwashers, and clothes washers and dryers, use significantly less energy than older appliances. Current energy efficient refrigerators, for example, use 40 percent less energy than conventional models did in 2001. Following this, if all households in Europe changed their more than ten year old appliances into new ones, 20 billion kWh of electricity would be saved annually, hence reducing CO2 emissions by almost 18 billion kg. In the US, the corresponding figures would be 17 billion kWh of electricity and 27,000,000,000 lb (1.2×1010 kg) CO2. According to a 2009 study from McKinsey & Company the replacement of old appliances is one of the most efficient global measures to reduce emissions of greenhouse gases. Modern power management systems also reduce energy usage by idle appliances by turning them off or putting them into a low-energy mode after a certain time.
- 7. Did you knowthat one well positioned tree on the side of your house can provide as much cooling during summer as FIVE medium air-conditioned units? Planting a tree on the southern side of your home (or north if you live in the Southern Hemisphere) will save energy and help our growing Greenhouse Gas problem too. Q) Do energy efficient appliances really save money? Ans) Yes energy efficient appliances save money. They not only save money but also reduce the energy usage, which in turn lead to less work load for energy plants, that reduces green house gas production and keep the environment healthy. When the environment is safe it will keep the people out of health problems and again saves money. The government will have to spend less money to prevent green hose effect. You may need to pay a little high prize earlier, as it last for years and reduce your energy usage, you will be saving much dollars in the coming years. So always go for a energy star product, this will save your money by using less energy, reduction of energy plant requirements and low pollution.
- 8. Your television isdrawing power right now if it is in Standby or Instant-On mode (up to a third of the power it needs to actually run). The combined energy from these television sets could power a mammoth-sized nuclear power plant (and the 800,000 tones of carbon emissions they produce)! Turn your television OFF at the power point. Yes, you may have to wait a minute or two before the screen works…. but the earth will thank you. For warming small amounts of food a microwave oven can save a third of the power of a conventional electric stove. But you waste energy twice over if you use the microwave to thaw frozen foods. Plan ahead. Let them thaw in the refrigerator. You'll not only save heating energy, you'll also reduce the load on your refrigerator motor. For the home office: inkjet or dot-matrix printers use only 4 percent and 15 percent as much energy, respectively, as laser printers. Color computer monitors use twice as much energy as black and white ones. It does not make sense in either energy or disk-saving terms to leave a computer on when you're not using it.
- 11. Energy conservation refersto efforts made to reduce energy consumption. Energy conservation can be achieved through increased efficient energy use, in conjunction with decreased energy consumption and/or reduced consumption from conventional energy sources. Energy conservation can result in increased financial capital, environmental quality, national security, personal security, and human comfort. Individuals and organizations that are direct consumers of energy choose to conserve energy to reduce energy costs and promote economic security. Industrial and commercial users can increase energy use efficiency to maximize profit. Pack the empty spaces in the freezer and the refrigerator either with ice trays or water pitchers. The more space that is taken up, the less energy it takes to cool or freeze. When using the dishwasher, do not run it unless it’s full and the same for the washing machine. The only thing you shouldn’t pack full is the lint filter, a clogged lint filter reduces a dryer’s efficiency and may actually lead to mechanical failures, higher energy bills and the case of some old style dryers, a fire.
- 12. Ceiling fans areenergy savers year round. Installing ceiling fans in many of the rooms of a home can help keep the occupants cooler in the summer (fan blades should rotate counterclockwise) and warmer in the winter (rotate clockwise at slow speed). Ceiling fans keep the air circulating and help reduce the cost of overall air conditioning and heating in the home. Students and teachers can do a lot to help save energy in their schools. Energy-saving things you do at home can also be done at schools. Turn Out the Lights Lighting is one of the largest users of energy in the classroom. By turning out the lights when a classroom is unoccupied, the school can save money. The school may also want to consider "occupancy sensors" that detected whether there are people in the room. If no one is there, the switch turns off the light. Stop the Drips Hot water is another area that uses a great amount of energy. By fixing dripping hot water faucets, you can save water and save energy. If it's cold water, fix the dripping faucet anyway because sanitizing and delivering water takes energy too.
- 13. Close the Doors Leavingdoors wide open to a room or building may make it more inviting to come in, but it wastes energy. Don't prop doors open but allow them to close after people walk through the doorway. Change the Settings Change the thermostat settings in rooms to 78 during warmer months and 68 during cooler months. Doing so will lower the heating and air conditioning use. Reuse and Recycle If the school has not set up a recycling effort, do it now. Reusing paper and recycling paper saves money and energy. Recycle aluminum cans and plastic bottles.
- 16. Sustainable energy isthe provision of energy such that it meets the needs of the present without compromising the ability of future generations to meet their needs. Sustainable energy sources are most often regarded as including all renewable sources, such as plant matter, solar power, wind power, wave power, geothermal power and tidal power. It usually also includes technologies that improve energy efficiency. Conventional fission power is sometimes referred to as sustainable, but this is controversial politically due to concerns about peak uranium, radioactive waste disposal and the risks of disaster due to accident, terrorism, or natural disaster. 6 Amazing facts that you probably don’t know about sustainable energy. Check it out in the next slide…….
- 17. Renewable Energy sourcesprovided nearly 10% of both domestic energy production and U.S. electrical generation in 2008 with non- hydro renewable electricity expanding by 17.6% over the previous year; renewable energy will account for about a third of new electricity capacity added to the U.S. grid over the next three years. U.S. Wind Power grew by 50% in 2008 and accounted for 42% of all new power generation in the United States last year; wind energy could supply at least 20% of U.S. electricity needs by 2030 while avoiding 7.6 cumulative giga tons of carbon dioxide. There may be more than 90,000 MW overall of untapped water potential in the United States; through new hydropower technologies, such as advanced turbines, and new applications, such as tidal, wave, ocean currents, and in-stream hydrokinetic approaches, the industry could double its output over the next 20 years. Six million Americans are using geothermal energy in their homes – three million receive electricity from geothermal power plants and another three million use geothermal heat pumps to heat & cool their homes.
- 18. more than 100new geothermal power projects now under development in 13 states will more than double the county’s geothermal capacity over the next five years. Biomass is presently the largest U.S. renewable energy source with more than 200 existing bio power plants now providing electricity for 1.5 million American homes; manure-to-energy biogas projects are expanding and could power up to 3% of North America’s electricity needs.
- 21. International Energy Agency TheInternational Energy Agency (IEA, or Agence internationale de l'énergie in French) is a Paris-based autonomous intergovernmental organization established in the framework of the Organization for Economic Co-operation and Development (OECD) in 1974 in the wake of the 1973 oil crisis. The IEA was initially dedicated to responding to physical disruptions in the supply of oil, as well as serving as an information source on statistics about the international oil market and other energy sectors. The IEA acts as a policy adviser to its member states, but also works with non-member countries, especially China, India and Russia. The Agency's mandate has broadened to focus on the "3Es" of sound energy policy: energy security, economic development, and environmental protection. The latter has focused on mitigating climate change. The IEA has a broad role in promoting alternate energy sources (including renewable energy), rational energy policies, and multinational energy technology co- operation.
- 22. IEA member countriesare required to maintain total oil stock levels equivalent to at least 90 days of the previous year's net imports. At the end of July 2009, IEA member countries held a combined stockpile of almost 4.3 billion barrels of oil. The Executive Director of the IEA is Nobua Tanaka. The Deputy Executive Director is Ambassador Richard Jones. SOME OTHER AGENCIES ARE:- Europe's Energy Portal (Europe) Save Power (Australia) Marorka (Iceland) Right Light (New Zealand) Alliance to Save Energy (United States) The Lebanese Centre for Energy Conservation (Lebanon)
- 24. Turn off lightswhen you leave a room. Keep lights and lampshades clean to get maximum light. Replace the standard light bulbs you use most frequently with energy efficient (compact fluorescent) light bulbs. Paint walls light colors – dark walls mean that rooms need more power to produce the same amount of light. Get a heat pump installed – it is a great way to reduce your energy use and save money on your monthly bill. Keep it dry - damp homes use more energy to heat, dry air is easier to heat and better for your health. Reduce condensation by leaving curtains, windows and doors open when you’re home during the day.
- 25. Don’t let yourdollars float up the chimney - block off your fireplace when you’re not using it. There’s free heating out there - capture as much sunlight as possible – by keeping windows clean and free of overhanging trees. Keep it cozy - close the curtains just before dark to keep the heat in. Fit thermal lined curtains and make sure they sit close to the window frame. Double glaze windows in the rooms you use the most. You want to be warm – but not too warm - remember to keep radiant heaters away from curtains and furnishings to reduce fire risk. This might seem illogical, but use your microwave – it uses less energy than the oven or stovetop. Use lids – covered pots heat up faster and use less energy. Boil cooking water in the kettle first rather than boiling it in the pot – you’ll not only save energy, but time as well.
- 26. Turn off, don’tstand by. Unplug mobile phone chargers, and turn off computers, monitors and printers when you’re not using them – monitors use well over half of the total energy used to run a computer. Using the remote control to switch off appliances like your TV and video doesn’t stop them using power – if there’s a red light or timer display showing, it’s still drawing electricity. Switch off at the wall. When buying new appliances, choose ENERGY STAR® appliances, or those with high star ratings. The more stars on the label, the more energy efficient the model. If you’re going away for more than two weeks turn off your hot water cylinder. If you are buying a new cylinder make sure you get one that is designed to be energy efficient – it will save you money in the long run.
- 28. A Presentation madeby:- Priya Chaudhary, Shreya Sood, Amaani Deewan, Nellini Singh, Namrata Yadav……