Electric Range
A single burner on your electric range uses 1,000 watts of power each hour, which will cost you 10 cents. Because electric stoves retain heat after they are turned off, you can turn off the burner a few minutes before the end of the cooking time.
If you’re making pasta, for example, turn the burner off five minutes before the pasta is done. The water will continue to remain hot enough to finish cooking the pasta and you’ll save some energy for your actual job.