What Summer Power Costs Look Like in Marietta
Residents of Marietta, GA can expect their summer energy bills to rise significantly compared to the milder spring months. The average monthly electric bill from June through August hovers around $180, a sharp increase from the $110 seen in April and May. The average July electric bill in Marietta peaks at about $210, making it the most expensive month for cooling.
These summer energy bills in Marietta reflect the increased demand placed on air conditioning systems to combat the scorching Georgia heat. Homes with older, less efficient A/C units or poor insulation may see even higher costs. Pools, irrigation systems, and electric vehicle charging can also contribute to steeper summer electric bills.
Why Are Energy Bills So High in Marietta During the Summer?

Several factors drive up energy bills in Marietta during the summer months. The primary culprit is the increased demand for air conditioning to maintain comfortable indoor temperatures. As outdoor temperatures regularly exceed 90°F, A/C systems must work harder and longer to cool homes, consuming more electricity in the process.
Older homes with outdated insulation and air sealing allow more heat to enter, placing an additional burden on cooling systems. Marietta’s long summer daylight hours also mean more time spent indoors using appliances and electronics. In some cases, pool pumps, lawn irrigation, and electric vehicle charging can further inflate summer energy costs.
Heat pumps, while generally efficient, can struggle to keep up in extreme temperatures, leading to longer runtimes and higher bills. Homes with zoned systems or multiple units cooling a large square footage may also see costs rise faster than those with a single, centrally located thermostat.
Sample Monthly Bill Breakdown
To better understand where your summer energy dollars go, consider this sample monthly cost breakdown for a typical 1,800 square foot home in Marietta with average A/C use:
Component | Cost | Percent |
---|---|---|
Cooling | $115 | 55% |
Appliances | $40 | 19% |
Water Heating | $25 | 12% |
Lighting | $15 | 7% |
Other | $15 | 7% |
Expect cooling to account for 50–60% of your July energy bill in Marietta. Actual costs will vary based on home size, A/C efficiency, thermostat settings, and other factors, but this should provide a general idea of how your summer utility spending breaks down.
Ways to Lower Summer Energy Bills
While summer heat naturally drives up cooling costs, Marietta residents can take several steps to rein in their energy bills:
- Enroll in off-peak billing or time-of-use rate plans to access lower prices during less busy hours
- Install a smart thermostat to optimize your A/C schedule and avoid over-cooling empty homes
- Have your ducts professionally sealed to minimize air leaks and improve circulation efficiency
- Utilize shade features like curtains, blinds, awnings, and tree cover to block solar heat gain
- Bump the thermostat up a few degrees and use fans to maintain comfort with less A/C strain
🏆 Energy Tip: Set your thermostat to 78°F during the day and rely on ceiling fans to create a cooling wind chill effect. Every degree above 72°F saves 3-5% on cooling costs.
Time-of-Use Pricing in Marietta
Some utility providers in the Marietta area, such as Georgia Power, offer time-of-use rate plans. Under these programs, electricity prices vary based on the time of day and demand on the grid. Rates tend to be highest during weekday afternoons and early evenings (peak hours) and lowest overnight and on weekends (off-peak).
By shifting more of your energy usage to off-peak hours, you can secure a lower rate for a larger portion of your electricity consumption. This may involve running appliances like dishwashers and washing machines at night or on weekends and pre-cooling your home in the early morning before peak rates kick in.
Summer Cooling FAQs
Q: How much more are summer electric bills compared to spring in Marietta?
A: Summer cooling costs in Marietta average about 60% higher than in the spring months. The typical monthly electric bill rises from around $110 in April/May to $180 from June through August.
Q: Does solar help reduce summer energy costs?
A: Yes, solar panels can significantly offset summer energy expenses. By generating your own electricity during peak sunlight hours, you can minimize your reliance on the grid when rates are highest. Learn more about utility costs in Marietta.
Q: What temperature should I keep my house at in the summer to save energy?
A: The US Department of Energy recommends setting your thermostat to 78°F when you’re home and a few degrees higher when you’re away. You can save 3-5% on your cooling costs for every degree above 72°F.
Smart Cooling Prep for Marietta Summers
With average summer electric bills in Marietta ranging from $150 to over $200 per month, it pays to be proactive about cooling costs. Expect to see your energy expenses rise by about 60% compared to spring, with air conditioning accounting for half or more of the total.
To minimize the impact on your budget, consider off-peak rate plans, smart thermostats, professional duct sealing, and passive cooling strategies like natural shade. Keep your thermostat set to 78°F or higher when possible and utilize fans for additional comfort.
By understanding your summer energy cost breakdown and taking practical steps to reduce consumption, you can keep your bills in check while still staying cool and comfortable in your Marietta home.