How effective is 'precooling' your home during off-peak hours? It depends
Summary
Precooling is a method to cool homes by setting lower temperatures during off-peak hours to reduce energy costs during peak times. Researchers and power companies have mixed views on its effectiveness, and it may not be efficient for all homes. Other tips include maintaining air conditioning systems and using less energy during peak hours.Key Facts
- Heat waves have affected much of the U.S., leading to increased use of air conditioners.
- Precooling involves lowering home temperatures during off-peak times to save on energy costs.
- Professor Daniel Barber suggests precooling can work if air conditioning systems are well-maintained and windows/curtains are closed.
- Precooling can be energy-intensive and produce greenhouse gases like HFCs.
- The U.S. Department of Energy recommends indoor temperatures of 75 to 78 degrees to save energy.
- Arizona Public Service supports precooling, advising temperature adjustments throughout the day.
- Georgia Power says precooling depends on home efficiency and may not work for all homes.
- Exelon Corporation warns that super cooling can increase energy use and costs.
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