Sheridan County, Wyoming Power Outages, 2017 to 2023

Sheridan County, Wyoming had 3 major outages from 2017 to 2023

Lower outage time among US counties

Residents here averaged 0.30 times the US outage time per person and 0.95 times the Wyoming rate. It ranks 10 of 20 in the state, where 1 has the most. Data confidence: High, with 7 years of records.

0.4major outages per year

2 of 7years with a major outage

22 hrslongest major outage

Oct, Sephardest months

October and September made up 40% of this county's outage time. The largest outage on record began Oct 12, 2021, reached 2,784 customers, and left at least 200 customers out for 22.2 hours.

Outage time per resident, rated Wyoming counties

MostLeast

Outage impact by year

Customer-hours without power. 1,000 customers out for 2 hours is 2,000 customer-hours.

20K

40K

60K

80K

2017'172018'182019'192020'202021'212022'222023'23

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2017	12,232	14	1
2018	7,869	9	0
2019	5,154	6	0
2020	9,852	5	0
2021	57,948	26	2
2022	50,660	30	0
2023	26,347	15	0

When outages hit

Share of this county's customer-hours by month.

10%

20%

30%

40%

JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start date	Hours	Peak customers	Customer-hours
Oct 12, 2021	22.2	2,784	27,463
Feb 16, 2023	6.2	3,907	9,718
Aug 19, 2021	8.0	1,346	8,352
Jul 19, 2022	7.8	1,094	8,265
Oct 6, 2022	7.0	2,109	7,582

Hours measure how long at least 200 customers in the county were out. Most customers get power back sooner.

Size your backup battery

Start with what you would keep running. Wattages are typical averages, so check your own appliances.

Phones, Wi-Fi, lights, about 60 WRefrigerator, about 60 WChest freezer, about 40 WGas furnace fan, about 160 W

Hours to cover: 24

1,700 Whof battery capacity, allowing for about 15% conversion loss

If anyone relies on medical equipment, plan that with their provider. Run portable fuel generators outdoors only, at least 20 feet from doors, windows and vents. See the outage checklist.

Look up another county

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How to read this

A major outage lasted at least 8 hours and reached customers equal to at least 1% of county residents.
Records cover outages of at least 200 customers in a county. They do not show what happened on your street.
Utilities that do not report can make a county look better than it is. Data ends in 2023. Read the full method.