We Love to Travel:
Energy for Electric Cars - Activity

Even electric cars need energy. The energy comes from the chemical potential energy stored in batteries. The energy within the batteries is from domestic electrical outlets in the home or garage, or from special "quick charge" service stations on the highways.

The energy conversion process is not 100% efficient. The efficiency cycle of chemical storage batteries is variable, but 80% is typical, meaning that 20% of the energy used to charge the battery is lost during the charge-discharge cycle as heat.

Assignment

  1. Use the Electricity to CO2 chart to determine the amount of carbon dioxide produced in the generation of electricity in your region.

  2. An electric vehicle uses 25 kWh per 100km. How much electrical energy is required to drive 400km?

  3. How much carbon dioxide is produced (in your region) to drive the electric car (from the previous question) 400 km?

  4. How much carbon dioxide is produced (in your region) to drive the electric car (from the previous question) 4000 km?

  5. The annual use of an electric car totals 10 000km. How much carbon dioxide is produced?

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