Grand River Dam Authority

What This Utility Data Tells You

Grand River Dam Authority is a state utility operating in Oklahoma under EIA identifier 7490. It reports service to approximately 76 customer accounts and generated about $0.24 billion in annual electric revenue.

In 2023, the average Grand River Dam Authority customer experienced 135.4 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. SAIFI, the average number of outage events per customer, was 0.34 for the same period, so customers statistically faced roughly 0 distinct interruptions that year. Strip out major event days (hurricanes, ice storms) and SAIDI falls to 135.4 minutes; the difference from the headline 135.4 shows how much of the outage total came from weather rather than everyday grid issues.

With 4 consecutive years of EIA data (2020–2023), Grand River Dam Authority's reliability record can be judged on trend rather than one isolated year. Over that span, SAIDI rose from 10.4 to 135.4 minutes, possibly reflecting tougher weather years or grid upgrades that have not caught up yet.