SAIDI
203 min per year
Mean outage duration per year (2023)
Puget Sound Energy Inc is an investor-owned utility operating in Washington under EIA identifier 15500. It reports service to approximately 1,223,116 customer accounts and generated about $2.73 billion in annual electric revenue, with a service footprint spanning 250 ZIP codes. As an investor-owned utility, it operates under state public utility commission oversight that reviews rate cases and reliability performance.
In 2023, the average Puget Sound Energy Inc customer experienced 203.0 minutes of power interruptions, a metric called SAIDI (System Average Interruption Duration Index). That lands within the usual 120–180 minute national benchmark band, roughly on par with typical U.S. distribution-utility performance. Over the same period, SAIFI (outage events per customer) was 1.30, putting the typical customer at roughly 1 distinct interruption that year. Once major event days (hurricanes, ice storms) are excluded, SAIDI comes down to 167.0 minutes, and the spread against the headline 203.0 indicates how much weather, versus routine infrastructure, drove the outage total.
Puget Sound Energy Inc has 4 years of continuous EIA reporting on file (2020–2023), enough to read a real trend rather than a single-year snapshot. SAIDI has improved from 414.0 to 203.0 minutes over that window, a meaningful direction for prospective customers and regulators watching capital investment outcomes.
SAIDI
203 min per year
Mean outage duration per year (2023)
SAIFI
1.30 interruptions/yr
Outage frequency (2023)
Customers
1,223,116
Served in Washington
203 outage minutes per customer annually
Minutes without power per year (2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 414.0 | 171.0 | 1.700 | 1,180,611 |
| 2021 | 849.0 | 207.0 | 2.270 | 1,192,766 |
| 2022 | 447.0 | 196.0 | 1.660 | 1,208,346 |
| 2023 | 203.0 | 167.0 | 1.300 | 1,222,236 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Puget Sound Energy Inc serves 250 ZIP codes in Washington.
Puget Sound Energy Inc had a SAIDI of 203.0 minutes in 2023. Excluding major weather events, this is near the national average.
Puget Sound Energy Inc is classified as a IOU serving Washington.
Puget Sound Energy Inc serves approximately 1,223,116 customers in Washington.
Puget Sound Energy Inc has 4 years of reliability data (2020-2023). SAIDI has held roughly steady across these years. Review the trend table above for year-by-year detail.
Source: U.S. Energy Information Administration Form 861 annual electric power industry survey · ZIP service territory: OpenEI. Disclaimer: informational only, not professional advice. See full disclaimer.
Every figure on PlainUtility is rendered directly from the U.S. Energy Information Administration's Form 861 reliability data, no number is typed in by an editor. This utility's SAIDI/SAIFI figures are rendered directly from EIA Form 861 reliability files. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2020-2023.