20.50.12.02

.02 System-Wide Reliability Standards.

A. Reliability Data. Each utility shall collect and maintain the data required to:

(1) Provide in its annual performance reports the reliability information specified in this regulation; and

(2) Demonstrate compliance with the reliability standards.

B. Reliability Reporting Period.

(1) Except as otherwise provided in §B(2) of this regulation, the data used by a utility to determine annual reliability performance shall be from the immediately preceding calendar year.

(2) The data used by a utility to determine the poorest performing feeders and multiple device activations shall include outage data from the 12-month period ending September 30 of the immediately preceding calendar year.

C. Reliability Standards — System-Wide Indices.

(1) A utility shall collect and maintain the data necessary to report CAIDI, SAIDI, and SAIFI for its system and each operating district, consisting of all feeders assigned to Maryland under Regulation .03D of this chapter.

(2) For an investor-owned utility, each index shall be calculated and reported in the annual performance report using the following sets of input data:

(a) All interruption data; and

(b) All interruption data minus major outage event interruption data.

(3) For cooperatively owned utilities, each index shall be calculated and reported in the annual performance report using the following sets of input data:

(a) All interruption data;

(b) All interruption data minus major outage event interruption data; and

(c) All interruption data minus major outage event interruption data and minus outage data resulting from an outage event occurring on another utility's electric system.

D. SAIDI and SAIFI Standards.

(1) The SAIDI in minutes and SAIFI reliability standards for the calendar years noted and thereafter, unless changed by the Commission, are as follows:

(a) Baltimore Gas and Electric Company
2015 2016 2017 2018 2019
SAIDI 206.4 192.0 177.6 162.6 142.2
SAIFI 1.39 1.33 1.27 1.22 1.08
(b) Choptank Electric Cooperative, Inc.
2015 2016 2017 2018 2019
SAIDI 154.8 152.4 151.2 149.4 148.2
SAIFI 1.39 1.38 1.37 1.37 1.36
(c) Delmarva Power & Light Company
2015 2016 2017 2018 2019
SAIDI 157.2 151.0 145.0 139.0 125.0
SAIFI 1.46 1.41 1.36 1.32 1.22
(d) Potomac Edison Company
2015 2016 2017 2018 2019
SAIDI 167.4 165.0 162.6 160.2 153.0
SAIFI 1.08 1.08 1.08 1.08 1.08
(e) Potomac Electric Power Company
2015 2016 2017 2018 2019
SAIDI 143.4 125.0 116.0 109.0 101.0
SAIFI 1.49 1.25 1.14 1.04 0.95
(f) Southern Maryland Electric Cooperative, Inc.
2015 2016 2017 2018 2019
SAIDI 139.2 138.0 136.8 136.2 135.6
SAIFI 1.36 1.35 1.34 1.33 1.32

(2) Each investor-owned utility's annual SAIDI and SAIFI reliability standard shall be measured against its system-wide annual SAIDI and SAIFI result, including all interruption data minus major outage event interruption data and consisting of all feeders assigned to Maryland under Regulation .03D of this chapter.

(3) Each cooperatively owned utility's annual SAIDI and SAIFI reliability standard shall be measured against its system-wide annual SAIDI and SAIFI result, including all interruption data minus major outage event interruption data and minus outage data resulting from an outage event occurring on another utility's electric system.

(4) A utility's annual SAIDI result shall be equal to or less than its annual SAIDI reliability standard established in §D(1) of this regulation.

(5) A utility's annual SAIFI result shall be equal to or less than its annual SAIFI reliability standard established in §D(1) of this regulation.

(6) Effective Date and Proration.

(a) For the year in which the regulations become effective, each utility’s SAIDI and SAIFI reliability standard shall be effective on July 1, or the effective date of this regulation, whichever is later, and prorated to account for the number of days from the effective date of this regulation until the end of that calendar year.

(b) The prorating shall be calculated by dividing the SAIDI and SAIFI reliability standard for the applicable year by the number of days in the calendar year to determine a daily SAIDI and SAIFI value.

(c) The daily SAIDI and SAIFI value shall be multiplied by the number of days remaining in the calendar year starting from the effective date of these regulations to establish the SAIDI and SAIFI standard for the year in which this regulation is promulgated.

(d) The utility’s actual SAIDI and SAIFI performance shall be measured over the same time period specified in §D(6)(c) of this regulation.

(7) SAIDI and SAIFI Standards after 2015.

(a) For the calendar year 2016 and each calendar year thereafter, the Commission shall establish SAIDI and SAIFI reliability standards and any other appropriate reliability requirements for each utility.

(b) By March 1, 2014 and every 4 years thereafter, unless otherwise directed by the Commission, each utility:

(i) Shall file proposed annual SAIDI and SAIFI reliability standards for its Maryland service territory;

(ii) Shall file corresponding cost estimates associated with meeting the proposed SAIDI and SAIFI reliability standards as specified by the Commission; and

(iii) May propose any other appropriate reliability requirement for the Commission’s consideration along with supporting comments.

(c) The proposed annual SAIDI and SAIFI reliability standards filed by each utility shall be for a 4-calendar-year period, at a minimum.

E. If a utility fails to satisfy the standard in §D(4) or (5) of this regulation, it shall provide a corrective action plan, preferably in its annual performance report but by no later than April 1.