City of Marietta electricity rates
Municipal utility · Georgia · SERC region
City of Marietta is a city-owned municipal utility, governed locally rather than by the state commission, serving 36,288 homes in Georgia. Its residential customers pay an average of 12.24¢/kWh including fixed and delivery charges, 32% less than the U.S. average.
Rate basis: EIA-861 2025 annual data, adjusted to the 12 months ending 2026-07 using the state's price trend.
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City of Marietta bill estimates
| Monthly use | At average all-in rate | Base tariff charges* |
|---|---|---|
| 500 kWh | $61.20 | $94.53 |
| 1,000 kWh | $122.40 | $177.32 |
| 1,500 kWh | $183.60 | $260.11 |
| 2,000 kWh | $244.80 | $342.89 |
*General Service Schedule GS-6 (15 - 50 kW) (effective 2012-01-01, $11.75/month customer charge), energy and fixed charges from the OpenEI Utility Rate Database. Riders, fuel adjustments and taxes are often billed separately, so real bills usually land closer to the all-in column. Calculate your bill.
City of Marietta residential rate plans
| Plan | Effective | Customer charge | Energy charges |
|---|---|---|---|
| General Service Schedule GS-6 (15 - 50 kW) | 2012-01-01 | $11.75 | 16.56¢ first 3,000 kWh, 15.06¢ first 200 kWh, 5.96¢ first 400 kWh, 5.16¢ after |
Source: OpenEI U.S. Utility Rate Database. Rates change. Check the linked tariff or your bill for current figures.
City of Marietta rate history
2015–2025: +1% change in the average residential rate (11.82¢ → 11.92¢). Annual EIA-861 data.
Outages & reliability
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Reliability history
| 2025 | City of Marietta | Georgia avg | U.S. avg |
|---|---|---|---|
| Outage minutes per customer (SAIDI) | 106 | 269 | 266 |
| Outages per customer (SAIFI) | 1.30 | 1.83 | 1.34 |
| Average restoration time (CAIDI) | 82 min | — | — |
| Outage minutes excluding major storms | 106 | 147 | 121 |
Outages in counties served (2025)
From ORNL EAGLE-I, which tracks customers without power every 15 minutes. These counts cover every utility in each county. Weighted across City of Marietta's counties, customers averaged 2 hr 57 min without power.
| County | Outage min/customer | Days with outages | Peak customers out | Worst day |
|---|---|---|---|---|
| Cobb | 177 | 51 | 38,496 | 2025-06-07 |
City of Marietta service area
City of Marietta serves Cobb County in Georgia and 15 ZIP codes.
Cobb
Cities: Roswell, Marietta, Smyrna, Kennesaw, Fair Oaks, Blue Ridge Manor
Programs, smart meters & solar
| Smart meters (AMI) for homes | 20% |
| Time-based rate programs | None reported |
| Net-metered solar homes | 40 |
| Residential efficiency incentives paid (2025) | $3,095 |
| Residential energy saved by programs | 63 MWh |
City of Marietta at a glance
| Ownership | Municipal utility |
| Services | Distribution, Bundled |
| Commercial rate | 11.86¢/kWh |
| Retail revenue (2025) | $115,491,900 |
| Electricity sold (2025) | 987,887 MWh |
| Peak demand | 230 MW summer · 182 MW winter |
| Line losses | 1.3% |
| Balancing authority | SOCO |
| EIA utility ID | 11646 |
Other utilities in Georgia
Frequently asked questions
What is City of Marietta's electricity rate?
City of Marietta residential customers pay an average of 12.24¢ per kWh, all charges included (EIA-861 2025 annual data, adjusted to the 12 months ending 2026-07 using the state's price trend). That's 19% below the Georgia average of 15.12¢ and 32% below the U.S. average.
What is the average City of Marietta electric bill?
About $102 a month. The average City of Marietta home uses 830 kWh a month. At 1,000 kWh the bill would be about $122.
How many customers does City of Marietta have?
City of Marietta serves 36,288 residential customers and 42,526 customers in total in Georgia, across 1 county.
How reliable is City of Marietta?
In 2025, the average City of Marietta customer was without power for 106 min (SAIDI) over 1.30 interruptions (SAIFI), including major storms. Excluding major event days it was 106 min. The Georgia average was 4 hr 29 min and the U.S. average 4 hr 26 min.
Does City of Marietta offer net metering for solar?
City of Marietta had 40 residential net-metered customers in 2025 with 0.2 MW of capacity. Estimate solar savings at this utility's rate.
Sources: EIA-861 2025 and EIA-861M (through July 2026), OpenEI URDB, ORNL EAGLE-I, U.S. Census. Methodology. Spot an error? Rates change often, so confirm with City of Marietta before making decisions.