IOU · Colorado · EIA 15466
Public Service Co of Colorado
IOU · Colorado · 1.6M customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 113 minutes/customer.
Reliability verdict
Public Service Co of Colorado shows near-benchmark chronic reliability in 2023: 104 minutes SAIDI excluding major events across 1.6M customers.
- 113 min
- SAIDI 2023
- 1.02
- SAIFI 2023
- 104 min
- SAIDI ex-MED
- 1.6M
- Customers
Chronic reliability judged on SAIDI excluding major event days when reported (IEEE 1366). Source: EIA Form 861 · August 2026.
Signature read: mid-cohort SAIDI between the 96 and 258 minute tercile cuts.
What mid-pack Public Service Co of Colorado filings show
Public Service Co of Colorado is an investor-owned utility operating in Colorado under EIA identifier 15466. It reports service to approximately 1,569,461 customer accounts and generated about $3.32 billion in annual electric revenue, with a service footprint spanning 344 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 Public Service Co of Colorado customer experienced 112.8 minutes of power interruptions, the industry-standard SAIDI metric (System Average Interruption Duration Index). That falls inside the typical 120–180 minute national benchmark, in line with what most U.S. distribution utilities report. Over the same period, SAIFI (outage events per customer) was 1.02, putting the typical customer at roughly 1 distinct interruption that year. Strip out major event days (hurricanes, ice storms) and SAIDI falls to 104.2 minutes; the difference from the headline 112.8 shows how much of the outage total came from weather rather than everyday grid issues.
Public Service Co of Colorado has 4 years of continuous EIA reporting on file (2020–2023), enough to read a real trend rather than a single-year snapshot. Over that window, SAIDI moved from 138.6 down to 112.8 minutes, a trend worth noting for anyone weighing capital investment outcomes.
Based on this utility's own EIA Form 861 reliability record -- baseline (major-event- excluded) outage duration, total outage duration, and outage frequency -- each benchmarked against every reporting utility nationwide. Not a measure of electricity rates or customer service, which this portal does not track.
113 minutes per customer per year
Minutes without power per year (2023)
SAIDI by year (2020-2023)
Minutes per customer-year · EIA Form 861
Year-by-year SAIDI for Public Service Co of Colorado from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
Public Service Co of Colorado SAIDI trend
Public Service Co of Colorado vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
113 Lower than most fewer outage minutes than 62% of 911 utilities
Utilities nationwide, banded by latest reported SAIDI (minutes)
Each bar is a band; taller bars hold more utilities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source U.S. EIA Form 861 reliability filings · August 2026
Price vs. reliability
Where Public Service Co of Colorado sits on price vs. reliability
Among the 781 U.S. utilities large enough to report both revenue per customer and a recent outage record, Public Service Co of Colorado charges more per customer than 23% of them, and is more reliable (lower SAIDI) than 66% of them, placing it in the quadrant where it pays less while still being more reliable, the best-value quadrant. Revenue per customer and outage minutes are independent figures: paying more does not guarantee fewer outages.
Revenue per customer: $2,114/year · Latest SAIDI: 112.8 minutes/year.
SAIDI 2023 breakdown: 112.8 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 138.6 | 83.3 | 1.035 | 1,441,506 |
| 2021 | 180.9 | 130.6 | 1.195 | 1,462,928 |
| 2022 | 173.7 | 111.8 | 1.171 | 1,483,419 |
| 2023 | 112.8 | 104.2 | 1.020 | 1,502,135 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
Public Service Co of Colorado serves 344 ZIP codes in Colorado.
Frequently Asked Questions
How reliable is Public Service Co of Colorado?
Public Service Co of Colorado had a SAIDI of 112.8 minutes in 2023. Excluding major weather events, this is near the national average.
What type of utility is Public Service Co of Colorado?
Public Service Co of Colorado is classified as a IOU serving Colorado.
How many customers does Public Service Co of Colorado serve?
Public Service Co of Colorado serves approximately 1,569,461 customers in Colorado.
How has Public Service Co of Colorado's reliability changed over time?
Public Service Co of Colorado has 4 years of reliability data (2020-2023). This utility's SAIDI has stayed fairly flat over the period. Review the trend table above for year-by-year detail.
Utility Profile
- Type
- IOU
- State
- Colorado
- Customers
- 1,569,461
- Annual Revenue
- $3.32B
- EIA ID
- 15466
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for Public Service Co of Colorado. Same-state SAIDI neighbors stay in Read-with below; these neighborhoods are nearest other-state utilities with at least 10,000 reported customers.
Similar customer count
Nearest utilities by Form 861 customers (1.6M here), outside Colorado.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (112.8 here), outside Colorado, excluding the customer-peer set.
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 · methodology.