Should I turn off my upstairs air conditioning during peak hours to save energy?

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SUMMARY

Turning off the upstairs air conditioning during peak hours from noon to 7 PM can lead to energy savings, especially in a 2600 sq' home in Arizona with a 13 SEER A/C system. Setting the upstairs thermostat to 85 degrees during these hours is beneficial, as it reduces energy consumption while maintaining a tolerable temperature. However, if the setback is only for a few hours, the total energy savings may be minimal, as more energy will be required later to cool the space back down. Ensuring proper insulation in the home is also crucial for maximizing energy efficiency.

PREREQUISITES
  • Understanding of SEER ratings for air conditioning systems
  • Knowledge of energy consumption patterns during peak hours
  • Familiarity with home insulation techniques
  • Basic concepts of thermostat programming and setback strategies
NEXT STEPS
  • Research energy-saving strategies for HVAC systems
  • Learn about effective home insulation materials and techniques
  • Explore programmable thermostat options for better energy management
  • Investigate local utility programs for peak hour energy savings
USEFUL FOR

Homeowners, energy efficiency enthusiasts, HVAC technicians, and anyone looking to reduce their electric bills during peak energy consumption hours.

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I have a 2600 sq' home in Arizona. I have a 13 seer a/c system with two units. I havea second story of my house which is only a loft. Is is more beneficial for me to leave the thermostat off upstairs to conserve energy during the peak hours that my electric provider has from noon-7pm? Or is it better to kep my updtairs thermostat to like 85 degrees?
 
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Welcome to PF.

I'm not clear on the second option. Is that 85 degrees only during peak hours or all the time?

Generally, any setback is a positive thing. The benefits aren't always huge because if the setback is only for a few hours, you'll just spend more energy later to bring the temperature back down - but still less total energy.
 
Well what options do I have. My wife does not work and she likes it cold but I do not want to have a $500 electric bill. What options do I have?
 
Leaving the unused areas of the house at higher temps for at least a few hours should help. Also check and make sure you have good insulation in your house. Spending a few hundred dollars once can save you loads for years.
 

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