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Conservation of Energy Resources

Conservation of Energy Resources. Chapter 25.3. Energy Efficiency. - The comparison (ratio) of the amount of work done by a device or machine to the amount of energy it uses. .

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Conservation of Energy Resources

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  1. Conservation of Energy Resources Chapter 25.3

  2. Energy Efficiency - The comparison (ratio) of the amount of work done by a device or machine to the amount of energy it uses. Many compact fluorescent light bulbs now carry the ENERGY STAR® label. These bulbs last up to 10,000 hours and save $25 to $45 over the life of the bulb. Photo credit: D and R Int., LTD. (US Department of Energy) (US Department of Energy)

  3. Improving Transportation Efficiency Plug-in Hybrid Electric Vehicles A plug-in hybrid electric vehicle (PHEV) combines the propulsion capabilities of a traditional combustion engine with an electric motor. The PHEV uses essentially the same technology as an HEV but uses much larger high-voltage batteries to power the electric motor and has a longer all-electric range. But, unlike the batteries in the HEV, which are recharged by only the internal combustion engine, and other technologies, the batteries in PHEVs can also be recharged by using an external power source, such as a home electrical outlet. (US Department of Energy)

  4. Energy Conservation Tips

  5. Sustainable Energy • Sustainable energy sources • will provide a reliable source of energy well into the future. • will not cause long-term damage to the environment. • will provide for continued economic and population growth. Video – A Different Kind of Fuel

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