How reliable is the power in Nevada?
Nevada ranks 5th of 45 states without major events and 12th with them (1st = fewest minutes), 66 below the U.S. 129 and 503 below the U.S. 662. Major events added 95 minutes, 60% of the with-events total. The figure covers 1,540,835 customers, 100% of the 1,527,485 EIA lists for Nevada.
Nevada with and without major events
minutes without power per customer, 2024, Nevada and U.S.
- 64Nevada, no major events
- 129U.S., no major events
- 159Nevada, with major events
- 662U.S., with major events
| Measure | Nevada without | Nevada with | U.S. without | U.S. with |
|---|---|---|---|---|
| SAIDI, minutes per customer | 64 | 159 | 129 | 662 |
| SAIFI, interruptions per customer | 0.66 | 1.11 | 1.06 | 1.53 |
| CAIDI, minutes per interruption | 97 | 143 | 122 | 433 |
| Median utility, SAIDI minutes | 44 | 85 | — | — |
Which Nevada utilities move the number
Sierra Pacific Power Co serves 26% of the customers in the Nevada figure: 65% of lost customer-minutes with major events, 41% without. Without Sierra Pacific Power Co, the weighted figure would be 74 minutes with major events and 51 without, against 159 and 64.
- Sierra Pacific Power Co: 396,461 customers (26%), 102 min without and 403 with; 65% of lost minutes with major events, 41% without.
- Nevada Power Co: 1,093,488 customers (71%), 52 min without and 73 with; 33% of lost minutes with major events, 57% without.
- Overton Power District No 5: 18,539 customers (1%), 21 min without and 158 with; 1% of lost minutes with major events, 0% without.
All Nevada utilities in the 2024 file
19 utilities in the 2024 EIA-861 files for Nevada: 5 follow IEEE 1366, 0 use another method, 14 filed no reliability figures. 5 are listed.
| Overton Power District No 5 | Political Subdivision | IEEE 1366 | 18,539 | 21 | 158 | 0.31 | 1.62 | 87 | 1 of 4 | — |
|---|---|---|---|---|---|---|---|---|---|---|
| Valley Electric Assn, Inc | Cooperative | IEEE 1366 | 24,146 | 44 | 85 | 0.69 | 1.07 | 48 | 2 of 4 | — |
| Nevada Power Co | Investor Owned | IEEE 1366 | 1,093,488 | 52 | 73 | 0.53 | 0.66 | 29 | 3 of 4 | — |
| Sierra Pacific Power Co | Investor Owned | IEEE 1366 | 396,461 | 102 | 403 | 1.04 | 2.34 | 75 | 4 of 4 | — |
| City of Boulder City - (NV) | Municipal | IEEE 1366 | 8,201 | 8 | 11 | 0.04 | 0.15 | 24 | Not ranked | under 10,000 customers |
Nevada utilities with no reliability figures
14 in the sales file, no SAIDI or SAIFI row.
| Utility | Type | Customers |
|---|---|---|
| Sunrun Inc. | Behind the Meter | 22,307 |
| Tesla Inc. | Behind the Meter | 12,398 |
| Mt Wheeler Power, Inc | Cooperative | 7,340 |
| Wells Rural Electric Co | Cooperative | 5,749 |
| Raft Rural Elec Coop Inc | Cooperative | 1,883 |
| Surprise Valley Electrification | Cooperative | 17 |
| WAPA-- Western Area Power Administration | Federal | 3 |
| Colorado River Comm of Nevada | State | 1 |
| Alamo Power District No 3 | Political Subdivision | — |
| Harney Electric Coop, Inc | Cooperative | — |
| Aha Macav Power Service | Political Subdivision | — |
| Plumas-Sierra Rural Elec Coop | Cooperative | — |
| Lincoln County Power Dist No 1 | Political Subdivision | — |
| City of Fallon - (NV) | Municipal | — |
The biggest Nevada utilities against the U.S.
- Nevada Power Co (investor owned, 68% of Nevada customers in the file): SAIDI without major events 52 min, 78 below the U.S. 129; with major events 73 min against 662.
- Sierra Pacific Power Co (investor owned, 25% of Nevada customers in the file): SAIDI without major events 102 min, 27 below the U.S. 129; with major events 403 min against 662.
- Valley Electric Assn, Inc (cooperative, 2% of Nevada customers in the file): SAIDI without major events 44 min, 86 below the U.S. 129; with major events 85 min against 662.
- Sunrun Inc. (behind the meter, 1% of Nevada customers in the file): no reliability figures filed.
- Overton Power District No 5 (political subdivision, 1% of Nevada customers in the file): SAIDI without major events 21 min, 109 below the U.S. 129; with major events 158 min against 662.
Nevada by type of utility
Among Nevada utilities that report under IEEE 1366, municipal utilities average 8 minutes without major events and investor owned utilities 65.
| Type | Utilities | Customers | SAIDI without | Median utility | SAIDI with |
|---|---|---|---|---|---|
| Investor Owned | 2 | 1,489,949 | 65 | 77 | 161 |
| Cooperative | 1 | 24,146 | 44 | 44 | 85 |
| Political Subdivision | 1 | 18,539 | 21 | 21 | 158 |
| Municipal | 1 | 8,201 | 8 | 8 | 11 |
Next to Nevada in the ranking
Nevada report card
Smart meters: 100% of residential meters, 3 utilities (U.S. 92%). Nevada time-based rates: 2 of 4 utilities, 1.3% of residential customers enrolled (U.S. 10.6%). Nevada efficiency spend: $25.3 per customer (U.S. $124.2). Demand response: 118 W per customer (U.S. 77). Nevada net-metered systems: 88.8 per 1,000 customers. Rankings.
Is your Nevada utility better or worse than the Nevada median?
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- Nevada against all states
- Nevada utilities among the best and worst
- Nevada utility reliability and price by company
- Nevada major outage reports from the Department of Energy
- Nevada electricity prices
- Nevada help with your bill
5 Nevada filings in EIA-861 2024 (retrieved 2026-10-01), 4 ranked utilities. Method and sources.
Questions
How many minutes without power did the average Nevada customer have in 2024?
64 minutes without major events and 159 with them (5 IEEE 1366 utilities, customer-weighted).
Why do the two Nevada numbers differ so much?
Major events add 95 of the 159 minutes (60%); Sierra Pacific Power Co supplies 65% of the with-events total.
Which Nevada utility reported the fewest and the most minutes?
Among 4 utilities with 10,000+ customers: Overton Power District No 5 21 minutes without major events, and Sierra Pacific Power Co 102.
Which Nevada utilities use which method?
5 follow IEEE 1366, 0 use another method, 14 filed no reliability figures.