Power Outages in Big Horn County, WY
PacifiCorp has not reported outages here, but it only publishesactive outages, so that isn't a confirmed all-clear. Powder River Energy Corp publishes only a system-wide total, not county figures. There is no live feed for Big Horn Rural Electric Co, City of Deaver - (WY), Garland Light & Power Company, High Plains Power Inc, Town of Basin - (WY) and WAPA-- Western Area Power Administration. In 2025, the average customer here lost power for about 4.2 hours.
Big Horn County, WY is served by 8 tracked utilities.
Cite this data
- URL
- https://massoutage.com/wyoming/big-horn-county
- As of
- Not available
- Publisher
- MassOutage
MassOutage, "Power Outages in Big Horn County, WY". https://massoutage.com/wyoming/big-horn-county
PacifiCorp only appearsin feeds while reporting outages, so no report isn't a confirmed all-clear.
Powder River Energy Corp publishes no county-level figures.
No live feed for Big Horn Rural Electric Co, City of Deaver - (WY), Garland Light & Power Company, High Plains Power Inc, Town of Basin - (WY) and WAPA-- Western Area Power Administration: outages in theirservice area won't show here.
0.0%of this county's ~5,691 customers are served by utilities with a county-level live feed.
We can't see outages for: Big Horn Rural Electric Co, City of Deaver - (WY), Garland Light & Power Company, High Plains Power Inc, Town of Basin - (WY), WAPA-- Western Area Power Administration. Their customers are not in any number on this page; check their own outage maps.
Only visible while reporting outages: PacifiCorp. Zero here is not a confirmed all-clear.
System-wide total only, no county split: Powder River Energy Corp.
| Utility | Feed | Out | Served | % out | Small outages | Incidents | Utility ETR | As of |
|---|---|---|---|---|---|---|---|---|
| PacifiCorp | Outages only | none reported | - | - | - | - | - | - |
| Powder River Energy Corp | Live · total only | not by county | - | - | - | - | - | - |
| Big Horn Rural Electric Co | No live feed | can't see | - | - | - | - | - | - |
| City of Deaver - (WY) | No live feed | can't see | - | - | - | - | - | - |
| Garland Light & Power Company | No live feed | can't see | - | - | - | - | - | - |
| High Plains Power Inc | No live feed | can't see | - | - | - | - | - | - |
| Town of Basin - (WY) | No live feed | can't see | - | - | - | - | - | - |
| WAPA-- Western Area Power Administration | No live feed | can't see | - | - | - | - | - | - |
Electricity-dependent residents
HHS emPOWER · data October 7, 2026Medicare beneficiaries in Big Horn Countywho rely on electricity-dependent medical equipment (ventilators, oxygen concentrators, home dialysis, powered wheelchairs, and more). HHS reports counts of 1–10 as “≤11”. Medicare only, so the full at-risk population is larger.
By ZIP code (11)
| ZIP | Power-dependent | Ventilators | O2 concentrators | Home dialysis |
|---|---|---|---|---|
| 82431 | 108 | ≤11 | 94 | 0 |
| 82426 | 58 | ≤11 | 52 | ≤11 |
| 82410 | 41 | 0 | 39 | ≤11 |
| 82420 | 23 | 0 | 22 | 0 |
| 82441 | ≤11 | ≤11 | ≤11 | 0 |
| 82434 | ≤11 | 0 | ≤11 | 0 |
| 82432 | ≤11 | 0 | ≤11 | ≤11 |
| 82423 | ≤11 | 0 | ≤11 | 0 |
| 82421 | ≤11 | 0 | ≤11 | 0 |
| 82412 | ≤11 | 0 | ≤11 | 0 |
| 82411 | ≤11 | ≤11 | ≤11 | 0 |
Emergency managers can request identified beneficiary lists through their state health department via the HHS emPOWER program.
Outage began, grew, restoration estimate changed, restored: by email, Slack, Teams, Discord or signed webhook, for Big Horn County or any town and utility in it.
No active NWS alerts for Big Horn County right now.
Big Horn County has been under 15 National Weather Service alerts recently, most recently a Freeze Warning on October 12, 2026.
- Flood Watch ×7
- Freeze Warning ×3
- Hydrologic Outlook ×2
- Red Flag Warning ×2
- Fire Weather Watch ×1
Latest Big Horn County, WY outage updates
A running log of how this outage has changed, updated automatically as utilities report in.
- RESOLVED
Power restored after 35m
- OUTAGE BEGAN
Outage began: 132 customers out (3.4% of the county)
Hardest-hit cities in Big Horn County
Where this event is concentrated across the county's towns and townships.
Historical reliability
In 2025, the average customer in Big Horn County went about 4.2 hours without power. Peak simultaneous outage on record reached 2,303 customers.
The US EIA reports Wyoming utilities averaged 4.4 hrs without power per customer (SAIDI) in 2025, a cross-check on our county estimate of 4.2 hrs.
Worst year here was 2018 (peak 1,765 customers out) · decade average 2.7 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2017 | 61 | 1,472 | 0.3 |
| 2018 | 127 | 1,765 | 4.4 |
| 2019 | 317 | 676 | 1.4 |
| 2020 | 187 | 2,279 | 2.9 |
| 2021 | 118 | 2,303 | 3.6 |
| 2022 | 115 | 1,139 | 1.8 |
| 2023 | 98 | 1,582 | 3.0 |
| 2024 | 119 | 1,656 | 2.6 |
| 2025 | 115 | 1,675 | 4.2 |
Cost of power in Big Horn County
ENERGY & AI DEMAND →Estimated residential electricity price for Big Horn County, customer-weighted across the utilities serving it (US EIA, 2025). Retail prices aren't published at the county level; this is a derived estimate.
- PacifiCorp15.1¢118,517 cust
- Powder River Energy Corp12.2¢15,548 cust
- High Plains Power Inc14.2¢12,868 cust
Weighted by each utility's residential customer count (utilities report customers at the state level; a per-county share isn't published). Rising retail prices track a national demand surge; see energy & the data-center boom.
Relatively Low winter weather exposure · 2.7 hrs/yr of outages over the last decade.
FEMA rates this county’s social vulnerability relatively moderate: outages hit harder where communities are less able to respond and recover.
All hazard rankings →Power outages in Big Horn County: FAQ
- How often does Big Horn County, WY lose power?
- Based on EAGLE-I records, Big Horn County, WY logged 115 distinct outage events in 2025, averaging about 4.2 hours without power per customer over the year.
- What was the worst power outage in Big Horn County, WY?
- The largest tracked outage peaked at 2,303 customers without power, beginning July 9, 2021 and lasting about 3h 30m.
- Is there a power outage in Big Horn County, WY right now?
- No major outage is currently reported for Big Horn County, WY. Live coverage depends on whether local utilities report to ODIN.
- Which utilities serve Big Horn County, WY?
- Tracked electric providers include PacifiCorp, Powder River Energy Corp.
Outages are tracked at the county level; these ZIP codes fall within Big Horn County.
82410, 82411, 82412, 82420, 82421, 82422, 82423, 82426, 82428, 82431, 82432, 82434, 82441
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| PacifiCorp | 3.5 hrs | Outages only | - |
| High Plains Power Inc | 5.3 hrs | No live feed | - |
| Powder River Energy Corp | 9.5 hrs | Live · total only | - |
| WAPA-- Western Area Power Administration | - | No live feed | - |
| Big Horn Rural Electric Co | - | No live feed | - |
| Garland Light & Power Company | - | No live feed | - |
| City of Deaver - (WY) | - | No live feed | - |
| Town of Basin - (WY) | - | No live feed | - |
Data from DOE/ORNL ODIN, DOE EAGLE-I, EIA Form 861 (utility reliability), EIA electricity retail prices and FEMA National Risk Index, every source we read. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of Wyoming customers). Machine-readable data: /api/v1/counties/56003 and /api/v1/counties/56003/history.