A quantitative assessment of utility reporting practices for reporting electric power distribution events

Author

Eto, J.H. ; LaCommare, K.H.

Author_Institution

Ernest Orlando Lawrence Berkeley Nat. Lab., Berkeley, CA, USA

fYear

2012

fDate

22-26 July 2012

Firstpage

1

Lastpage

6

Abstract

Metrics for reliability, such as the frequency and duration of power interruptions, have been reported by electric utilities for many years. This study examines current utility practices for collecting and reporting electricity reliability information and discusses challenges that arise in assessing reliability because of differences among these practices. The study is based on reliability information for year 2006 reported by 123 utilities in 37 states representing over 60% of total U.S. electricity sales. We quantify the effects that inconsistencies among current utility reporting practices have on comparisons of System Average Interruption Duration Index (SAIDI) and System Average Interruption Frequency Index (SAIFI) reported by utilities. We recommend immediate adoption of IEEE Std. 1366-2003 as a consistent method for measuring and reporting reliability statistics.

Keywords

electricity supply industry; power distribution faults; power distribution reliability; IEEE Std. 1366-2003; SAIDI; SAIFI; electric power distribution event reporting; electric utility; electricity reliability information; reliability statistics; system average interruption duration index; system average interruption frequency index; utility reporting quantitative assessment; Electricity; IEEE standards; Marketing and sales; Measurement; Power industry; Reliability; Distribution system; power distribution reliability; reliability indices;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Society General Meeting, 2012 IEEE

Conference_Location

San Diego, CA

ISSN

1944-9925

Print_ISBN

978-1-4673-2727-5

Electronic_ISBN

1944-9925

Type

conf

DOI

10.1109/PESGM.2012.6344626

Filename

6344626