Saving Energy


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Saving Energy

  1. 1. SAVING ENERGYSAVING ENERGY • TYPES OF ENERGYTYPES OF ENERGY • WIND:wind power is the conversion ofWIND:wind power is the conversion of wind energy into a useful form of energy.wind energy into a useful form of energy. • SOLAR:is the radiant light and heat of theSOLAR:is the radiant light and heat of the sun.sun. • HIDROPOWER: is electricity generated byHIDROPOWER: is electricity generated by hidropowerhidropower
  2. 2. Wind powerWind power Wind is simply air in motion. It isWind is simply air in motion. It is caused by the uneven heating ofcaused by the uneven heating of the Earth's surface by the sun.the Earth's surface by the sun. Because the Earth's surface isBecause the Earth's surface is made of very different types ofmade of very different types of land and water, it absorbs theland and water, it absorbs the sun's heat at different rates.sun's heat at different rates.
  3. 3. Solar energySolar energy The sun has produced energy forThe sun has produced energy for billions of years.  Solar energy isbillions of years.  Solar energy is the sun’s rays (solar radiation)the sun’s rays (solar radiation) that reaches the Earth. Thisthat reaches the Earth. This energy can be converted intoenergy can be converted into other forms of energy, such asother forms of energy, such as heat and electricity.heat and electricity.
  4. 4. hydropowerhydropower Hydropower is the renewableHydropower is the renewable energy source that producesenergy source that produces most of the electricity in themost of the electricity in the United States. It accounted for 6%United States. It accounted for 6% of total U.S. electricity generationof total U.S. electricity generation and 67% of generation fromand 67% of generation from renewables in 2008.renewables in 2008.
  5. 5. Using power management features on your computer can save more than 600 KWh of electricity and more than $60 a year in energy costs. That equates to nearly half a ton of CO2 – more than lowering your home thermostat by two degrees Fahrenheit in the winter or replacing six standard light bulbs with compact fluorescents. Follow the steps below to ensure your computer is operating more efficiently.
  6. 6. When enabled, power management places your monitor, hard drives and computer into a low-power “sleep” mode after a period of inactivity. A simple touch of the mouse or keyboard “wakes” the computer, hard drive and monitor in seconds. Power management features are standard in Windows and Macintosh operating systems. The use of power management can reduce energy consumption and cooling costs, reduce noise, and prolong the battery life of laptop PCs. And when your PC consumes less power, you reduce your impact on the environment. To improve the power efficiency of your PC, the Climate Savers Computing Initiative recommends the following power management settings: Monitor/display sleep: Turn off after 15 minutes or less Turn off hard drives/hard disk sleep: 15 minutes or less System standby/sleep: After 30 minutes or less Instructions for enabling power management vary by operating system. Click the links to the right for detailed instructions by operating system. You can also download a printable PDF with instructions for enabling power management in all of the above operating systems.
  7. 7. 1. Use computer and monitor power management. Doing so can save nearly half a ton of CO2 and more than $60 a year in energy costs. 2. Don’t use a screen saver. Screen savers are not necessary on modern monitors and studies show they actually consume more energy than allowing the monitor to dim when it’s not in use. 3. Buying a new computer? Make energy efficiency a priority while shopping for your PC and monitor. Look for the ENERGY STAR label or browse the Climate Savers Computing product catalog. 4. Turn down the brightness setting on your monitor. The brightest setting on a monitor consumes twice the power used by the dimmest setting. 5. Turn off peripherals such as printers, scanners and speakers when not in use. 6. Fight phantom power; plug all your electronics into one power strip and turn the strip off when you are finished using your computer. When feasible, we also recommend unplugging the power strip from the wall to avoid high voltage surges which may occur during an electrical storm.
  8. 8. 7. Use a laptop instead of a desktop. Laptops typically consume less power than desktops. 8. Close unused applications and turn off your monitor when you’re not using it. 9. Use a power meter to find out how much energy your computer actually consumes and to calculate your actual savings. 10. Establish multiple power schemes to address different usage models. For example, you can create a power scheme for playing music CDs that shuts off your hard drive and monitor immediately, but never puts your system into standby mode.