Electrical Dist No3 Pinal County

What This Utility Data Tells You

Electrical Dist No3 Pinal County is a municipally-owned utility operating in Arizona under EIA identifier 30518. It reports service to approximately 30,420 customer accounts and generated about $0.10 billion in annual electric revenue, with a service footprint spanning 4 ZIP codes. As a municipal utility, it is typically governed by a local board or city council and is exempt from federal income tax.

In 2023, the average Electrical Dist No3 Pinal County customer experienced 73.0 minutes of power interruptions, the industry-standard SAIDI metric (System Average Interruption Duration Index). That is comfortably under the 120–180 minute national benchmark range, a sign of solid grid resilience and quick outage response. SAIFI, the average number of outage events per customer, was 1.22 for the same period, so customers statistically faced roughly 1 distinct interruption that year. Once major event days (hurricanes, ice storms) are excluded, SAIDI comes down to 73.0 minutes, and the spread against the headline 73.0 indicates how much weather, versus routine infrastructure, drove the outage total.

With 4 consecutive years of EIA data (2020–2023), Electrical Dist No3 Pinal County's reliability record can be judged on trend rather than one isolated year. SAIDI has increased from 50.9 to 73.0 minutes, which may reflect either worsening weather exposure or delayed grid modernization.