County annual report · FIPS 46081
2023 Lawrence County, SD Power Outage Report
In 2023, customers in Lawrence County, SD went without power for an average of 1.5 hours, a total of 23K customer-hours (South Dakota average 2.3 hours). That ranks 40th worst of 61 South Dakota counties and 2504th of 2,977 nationally.
Compared with SD, the US and 2022
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Lawrence County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 11, 2023 15:15 | June 12, 2023 19:00 | 1d 3h | 4,461 | 7,835 |
| 2 | August 4, 2023 16:00 | August 7, 2023 17:30 | 3d 1h | 1,162 | 2,395 |
| 3 | January 16, 2023 14:15 | January 16, 2023 16:30 | 2h 15m | 1,069 | 1,849 |
| 4 | March 11, 2023 20:00 | March 12, 2023 00:45 | 4h 45m | 490 | 2,139 |
| 5 | May 31, 2023 02:30 | May 31, 2023 03:15 | 45m | 262 | 160 |
| 6 | September 5, 2023 03:30 | September 5, 2023 08:30 | 5h | 234 | 495 |
| 7 | May 13, 2023 11:15 | May 13, 2023 18:00 | 6h 45m | 222 | 658 |
| 8 | May 6, 2023 14:30 | May 11, 2023 04:45 | 4d 14h | 211 | 241 |
| 9 | October 11, 2023 21:45 | October 11, 2023 22:45 | 1h | 185 | 119 |
| 10 | June 24, 2023 21:15 | June 25, 2023 15:15 | 18h | 148 | 512 |
Outage episodes by size in 2023: 15 reached 100+ customers, 3 reached 1,000+ customers, 0 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Lawrence County reported on EIA Form 861 for 2023, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Black Hills Power, Inc. | 2023 | 66 min | 0.77 | 64 min | 0.74 |
| Black Hills Electric Coop, Inc | 2023 | 2.7 hrs | 0.78 | 88 min | 0.62 |
| Black Hills Energy | - | - | - | - | - |
| Butte Electric Coop, Inc | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of South Dakota's customers in 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 15,540 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Lawrence County has data for 2016–2025.
Cite this report
MassOutage (massoutage.com), Lawrence County, SD annual power outage report, 2023, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2023/south-dakota/lawrence-county