Electricity rates in Sullivans Island, SC
Sullivans Island (1,791 people, Charleston County) is served by Dominion Energy South Carolina. Homes on Dominion Energy South Carolina pay about 17.12¢/kWh, 9% more than the South Carolina average.
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Electric companies serving Sullivans Island
| Utility | Type | Rate | Avg bill | Homes (statewide) | Outage min |
|---|---|---|---|---|---|
| Dominion Energy South Carolina | Investor-owned utility | 17.12¢ | $177 | 713K | 131 |
Power outages in Charleston County right now
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Outage history in Charleston County
| 2024 | 2025 | |
|---|---|---|
| Outage minutes per customer | 254 | 135 |
| Days with outages | 39 | 96 |
| Most customers out at once | 41,670 (18%) | 6,830 (3%) |
| Worst day | 2024-09-27 | 2025-09-15 |
Outage minutes by month, 2025
Less outage time than 2024 (254 min). Data: ORNL EAGLE-I county outage snapshots every 15 minutes, covering all utilities in the county.
Nearby cities
- Mount Pleasant 16.7¢
- Isle of Palms 17.1¢
- Charleston 17.1¢
- James Island 17.1¢
- Folly Beach 17.1¢
- North Charleston 17.1¢
- Hanahan 17.1¢
- Shell Point 16.7¢
- Goose Creek 17.1¢
- Ladson 17.1¢
ZIP codes: 29482
Frequently asked questions
What is the electricity rate in Sullivans Island?
Most homes in Sullivans Island get power from Dominion Energy South Carolina, where residential customers pay an average of 17.12¢/kWh including all charges. The South Carolina average is 15.64¢ and the U.S. average 17.99¢.
What is the average electric bill in Sullivans Island?
About $177 a month, based on 1,032 kWh a month (the average for Dominion Energy South Carolina customers) at 17.12¢/kWh. Homes with electric heat, pools or EVs pay more.
Who is the electric company in Sullivans Island, SC?
Dominion Energy South Carolina serves Sullivans Island.
How often does the power go out in Sullivans Island?
In 2025, customers in Charleston County averaged 2 hr 15 min without power. Outages hit 96 days of the year, and the worst day was 2025-09-15, when 6,830 customers (3%) were out. Source: ORNL EAGLE-I.