Electricity rates in Williston, SC
Williston (3,028 people, Barnwell County) is served by 3 electric utilities. 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 Williston
| Utility | Type | Rate | Avg bill | Homes (statewide) | Outage min |
|---|---|---|---|---|---|
| Dominion Energy South Carolina | Investor-owned utility | 17.12¢ | $177 | 713K | 131 |
| Aiken Electric Co-op | Electric cooperative | 18.30¢ | $201 | 51K | 189 |
| Edisto Electric Co-op | Electric cooperative | 19.86¢ | $238 | 16K | 236 |
Power outages in Barnwell County right now
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Outage history in Barnwell County
| 2024 | 2025 | |
|---|---|---|
| Outage minutes per customer | 2,123 | 209 |
| Days with outages | 42 | 47 |
| Most customers out at once | 6,437 (60.6%) | 3,838 (36.1%) |
| Worst day | 2024-09-27 | 2025-10-28 |
Outage minutes by month, 2025
Less outage time than 2024 (2,123 min). Data: ORNL EAGLE-I county outage snapshots every 15 minutes, covering all utilities in the county.
Nearby cities
- Blackville 17.1¢
- Barnwell 17.1¢
- New Ellenton 18.3¢
- Denmark 17.1¢
- Aiken 17.1¢
- Jackson 17.1¢
- Bamberg 17.1¢
- Warrenville 17.1¢
- Graniteville 17.1¢
- Gloverville 17.1¢
ZIP codes: 29853
Frequently asked questions
What is the electricity rate in Williston?
Most homes in Williston 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¢. Other utilities serving parts of Williston: Aiken Electric Co-op (18.30¢), Edisto Electric Co-op (19.86¢).
What is the average electric bill in Williston?
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 Williston, SC?
3 utilities serve Williston's ZIP codes: Dominion Energy South Carolina, Aiken Electric Co-op, Edisto Electric Co-op. Which one serves you depends on your street address.
How often does the power go out in Williston?
In 2025, customers in Barnwell County averaged 3 hr 29 min without power. Outages hit 47 days of the year, and the worst day was 2025-10-28, when 3,838 customers (36.1%) were out. Source: ORNL EAGLE-I.