City of Tacoma - (WA)

What This Utility Data Tells You

City of Tacoma - (WA) is a municipally-owned utility operating in Washington under EIA identifier 18429. It reports service to approximately 196,833 customer accounts and generated about $0.41 billion in annual electric revenue, with a service footprint spanning 38 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 City of Tacoma - (WA) customer experienced 55.2 minutes of power interruptions, the industry-standard SAIDI metric (System Average Interruption Duration Index). That places this utility well below the 120–180 minute national benchmark, signaling strong grid hardening and fast restoration practices. The SAIFI figure, which tracks average outage events per customer, came in at 0.60 for the same period, meaning customers statistically saw about 1 distinct interruption that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 55.2 minutes, the gap between that figure and the headline 55.2 reveals how much weather, not day-to-day infrastructure, drove outages.

City of Tacoma - (WA) 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 84.9 down to 55.2 minutes, a trend worth noting for anyone weighing capital investment outcomes.