Using up Eenergy

Cards (5)

  • When we use devices , we use a lot of energy
  • Negatives of electricity in terms of energy
    •  All the billions of devices in the world today are consuming a lot of energy in the form of electricity
    • Most electricity is made using non-renewable resources like coal , oil and gas 
    • Extracting these resources and producing electricity in power stations causes lots of pollution including greenhouse gases
  • Servers contributing to energy waste
    • All computers generate heat and require cooling 
    • The powerful servers used by businesses and the Internet are a particular problem 
    • They need a lot of power and require special air-conditioned rooms to keep them cool 
    • This means more energy has to be used , resulting in more pollution
  • How devices waste energy
    • Devices waste lots of energy 
    • Servers normally only use a small proportion of their processing power 
    • People often leave their desktops, laptops and smartphones idle 
    • This means these devices are using lots of energy without actually doing anything
  • Ways to reduce the amount of energy wasted by a device
    • Virtual servers are software-based servers rather than real machines - multiple virtual servers can run on one physical server,, so the physical server can run at full capacity  
    • Most modern devices include sleep and hibernation modes to reduce their power consumption when they are idle 
    • Don’t leave electronic devices (TV, laptops, etc) on standby