Reliability Indices

Oconomowoc Utilities strives to provide all of our customers with the highest quality electric service. We are pleased to supply our customers with the following reliability indices.

CAIDI (Customer Average Interruption Duration Index) measures the average outage duration, in minutes, if a customer experiences an outage. This is also known as “restoration time.” SAIDI (System Average Interruption Duration Index) measures the average outage duration for all customers served. SAIFI (System Average Interruption Frequency Index) measures how often a customer can expect to experience an outage.

Oconomowoc Utilities 2015 Reliability Indices
Quarter CAIDI SAIDI SAIFI
1st 73.16 .207 .003
2nd 117.937 .840 .007
3rd 72.356 2.643 .040
4th 244.22 .249 .001


Oconomowoc Utilities 2014 Reliability Indices
Quarter CAIDI SAIDI SAIFI
1st 69.525 .315 .005
2nd 75.503 3.074 .004
3rd 82.426 .569 .007
4th 18.294 .261 .01

Oconomowoc Utilities Historical Reliability Indices (year end)
Year CAIDI SAIDI SAIFI
2015 101.187 6.501 .060
2014 63.535 4.218 .070
2013 72.787 16.614 .228
2012 36.2202 23.4319 .6469
2011 133.474 41.189 .309
2010 68.404 4.865 .071
2009 58.112 17.388 .299
2008 48.742 36.078 .740