SAIDI
105 min per year
Mean outage duration per year (2023)
The Narragansett Electric Co is an investor-owned utility operating in Rhode Island under EIA identifier 13214. It reports service to approximately 404,034 customer accounts and generated about $0.83 billion in annual electric revenue, with a service footprint spanning 89 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 The Narragansett Electric Co customer experienced 104.6 minutes of power interruptions, the industry-standard SAIDI metric (System Average Interruption Duration Index). Excluding major weather events from that total, that is comfortably under the 120–180 minute national benchmark range, a sign of solid grid resilience and quick outage response. The SAIFI figure, which tracks average outage events per customer, came in at 0.78 for the same period, meaning customers statistically saw about 1 distinct interruption that year. Strip out major event days (hurricanes, ice storms) and SAIDI falls to 52.2 minutes; the difference from the headline 104.6 shows how much of the outage total came from weather rather than everyday grid issues.
With 4 consecutive years of EIA data (2020–2023), The Narragansett Electric Co's reliability record can be judged on trend rather than one isolated year. SAIDI dropped from 548.4 to 104.6 minutes across that span, a direction regulators and prospective customers tend to watch closely. Note: this figure is unusually low compared to typical U.S. utility performance and may reflect an incomplete EIA filing for this year rather than a genuine reliability improvement -- treat with caution and cross-check against The Narragansett Electric Co's other reported years.
SAIDI
105 min per year
Mean outage duration per year (2023)
SAIFI
0.78 interruptions/yr
Events per customer (2023)
Customers
404,034
Rhode Island service territory
105 outage minutes per customer annually
Annual minutes without electric service (2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 548.4 | 69.1 | 1.966 | 498,159 |
| 2021 | 448.6 | 68.8 | 1.429 | 499,886 |
| 2022 | 81.9 | 63.2 | 0.959 | 500,974 |
| 2023 | 104.6 | 52.2 | 0.782 | 503,487 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
The Narragansett Electric Co serves 89 ZIP codes in Rhode Island.
The Narragansett Electric Co had a SAIDI of 104.6 minutes in 2023 including major weather events, but 52.2 minutes excluding them (the IEEE-standard measure of day-to-day reliability, the gap reflects a major storm that year, not chronic performance). Leaving aside major weather events, that figure comes in under the national average, pointing to above-average reliability.
The Narragansett Electric Co is classified as a IOU serving Rhode Island.
The Narragansett Electric Co serves approximately 404,034 customers in Rhode Island.
The Narragansett Electric Co 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.