Why Running Your AC at Night Isnt Always Cheaper


Breaking Down a Common Air Conditioning Misconception

One of the most persistent myths we hear at Grissom Service Company involves the best time to run your air conditioning system. Many homeowners believe that running their AC exclusively at night will result in significant energy savings. Let’s examine why this isn’t always the case.

Here’s what you need to know:

The Temperature Factor

• While nighttime temperatures are generally cooler, humidity levels often increase
• Your AC works harder to remove moisture during high-humidity periods
• Playing “catch-up” with indoor temperatures can use more energy than maintaining a steady temperature

The Real Cost-Effective Approach

• Use a programmable thermostat to maintain consistent temperatures
• Allow for modest temperature increases when you’re away
• Keep your system properly maintained for optimal efficiency

Why Consistent Operation Matters

Modern AC systems are designed to run efficiently over extended periods. Short-cycling (turning the system on and off frequently) can actually lead to:
• Increased wear and tear on components
• Higher energy bills
• Reduced humidity control
• Inconsistent comfort levels

Instead of restricting AC operation to nighttime hours, focus on proper maintenance, smart thermostat programming, and regular professional service to maximize efficiency. These proven strategies will help you achieve genuine energy savings while maintaining comfort throughout the day.

Remember, every home is unique, and what works for one may not work for another. For personalized advice about your cooling system’s operation, consulting with a professional technician is always your best bet.