1.4 ERMUSR 05-11-2021______________________________________________________________________________
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UTILITIES COMMISSION MEETING
TO:
ERMU Commission
FROM:
Mike Tietz – Technical Services Superintendent
MEETING DATE:
May 11, 2021
AGENDA ITEM NUMBER:
1.4
SUBJECT:
American Public Power Association 2020 Certificate of Excellence in Reliability
ACTION REQUESTED:
Receive the American Public Power Association 2020 Certificate of Excellence in Reliability
BACKGROUND \ DISCUSSION:
The American Public Power Association (APPA) recently honored 187 public power utilities with
a "Certificate of Excellence in Reliability" for reliable performance. These utilities have
significantly outperformed the electric industry nationwide averages as gathered by the Energy
Information Administration. APPA collected data from nearly 509 public power utilities that
track their reliability data via the eReliability Tracker. Of those utilities, 272 were considered to
have sound data that was included in the 2020 Annual Benchmarking Report.
The tracker performs calculations for System Average Interruption Duration Index (SAIDI) which
measures the average outage time per customer on the system, System Average Interruption
Frequency Index (SAIFI) which measures how often a customer on our system could expect to
experience an outage, and Customer Average Interruption Duration Index (CAIDI) which
measures averaged outage duration of all customers that actually experienced an outage.
The report also includes calculations for Momentary Average Interruption Frequency Index
(MAIFI) and Average Service Availability Index (ASAI) which helps utilities to compare, collect,
categorize, and analyze their outage information.
For 2020, ERMU’s SAIDI was only 15.8 minutes (excluding major events), compared to the
industry average of 139 minutes (excluding major events). In simple terms, it means that
averaged out over our 12,604 electric customers, each customer could expect to have a total
outage time that is 123 minutes shorter than the national average.
I would like to recognize the Elk River Municipal Utilities team for continuing to provide our
customers with exceptional electric reliability in 2020. The hard work of these dedicated people
exemplifies ERMU’s Vision to “Provide exceptional services and value to those we serve.”
ATTACHMENT:
• APPA 2020 Certificate of Excellence in Reliability
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