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

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Discussion Overview

The discussion revolves around the energy efficiency of air conditioning usage in a two-story home during peak electricity hours in Arizona. Participants explore whether it is more beneficial to turn off the upstairs thermostat completely or to set it to a higher temperature to conserve energy.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant describes their home setup and questions whether turning off the upstairs thermostat during peak hours is more energy-efficient than setting it to 85 degrees.
  • Another participant seeks clarification on whether the 85 degrees setting applies only during peak hours or continuously, suggesting that any temperature setback can be beneficial, though the energy savings may vary based on duration.
  • A participant expresses concern about high electric bills and inquires about options to balance comfort and cost.
  • Another suggestion is made to maintain higher temperatures in unused areas for a few hours and to ensure good insulation, indicating that initial investments in insulation could lead to long-term savings.

Areas of Agreement / Disagreement

Participants have not reached a consensus on the best approach to managing the upstairs air conditioning during peak hours, with differing opinions on the effectiveness of turning off the thermostat versus setting it to a higher temperature.

Contextual Notes

Participants discuss the implications of temperature settings and energy savings without resolving the specific conditions under which these strategies may be most effective.

Who May Find This Useful

Homeowners in similar climates considering energy-saving strategies for air conditioning, particularly those with multi-story homes.

dkmcd55
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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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