best undertaking annexure - iv performance …agri. feeders) saidi july 2014 412110 31.63 1020353...

April 2014 to March 2015 FY 2014-15

Sr. No. Month

Ni = No. of Consumers who experienced a

sustained interruption on

ith Feeder

Ri = Restoration Time for each

interruption event

on ith Feeder

Nt = Total No. of consumers of the

Distribution Licensee area

Sum (Ri X Ni) for all Feeders excluding agri.

FeedersSAIDI = (6) / (5)

1 2 3 4 5 6 7

1 Apr-14 310770 27.48 1020353 8538876 8.372 May-14 286623 24.18 1020353 6930738 6.793 Jun-14 286505 27.30 1020353 7822515 7.674 Jul-14 412110 31.63 1020353 13037081 12.785 Aug-14 357111 30.53 1020353 10902648 10.696 Sep-14 371924 21.35 1020353 7939544 7.787 Oct-14 260310 27.05 1020353 7041975 6.908 Nov-14 320237 28.69 1020353 9189128 9.019 Dec-14 305878 24.63 1020353 7533058 7.38

10 Jan-15 290302 25.80 1020353 7489839 7.3411 Feb-15 163680 21.91 1020353 3586113 3.5112 Mar-15 303966 40.04 1020353 12170294 11.93

102181808 100.15

Sr. No. Month

Ni = No. of Consumers who experienced a

sustained interruption on

ith Feeder

Sum of Consumers

of ith feeder which had experienced

interruptions = Sum Ni

Nt = Total No. of consumers of the

Distribution Licensee area

SAIFI = (4) / (5)

1 2 3 4 5 6

1 Apr-14 310770 310770 1020353 0.302 May-14 286623 286623 1020353 0.283 Jun-14 286505 286505 1020353 0.284 Jul-14 412110 412110 1020353 0.405 Aug-14 357111 357111 1020353 0.356 Sep-14 371924 371924 1020353 0.367 Oct-14 260310 260310 1020353 0.268 Nov-14 320237 320237 1020353 0.319 Dec-14 305878 305878 1020353 0.30

10 Jan-15 290302 290302 1020353 0.2811 Feb-15 163680 163680 1020353 0.1612 Mar-15 303966 303966 1020353 0.30

3.58

Sr. No. Month SAIDI SAIFI SAIDI / SAIFI1 2 3 4 5

1 Apr-14 8.37 0.3 27.902 May-14 6.79 0.28 24.253 Jun-14 7.67 0.28 27.394 Jul-14 12.78 0.4 31.955 Aug-14 10.69 0.35 30.546 Sep-14 7.78 0.36 21.617 Oct-14 6.9 0.26 26.548 Nov-14 9.01 0.31 29.069 Dec-14 7.38 0.3 24.60

10 Jan-15 7.34 0.28 26.2111 Feb-15 3.51 0.16 21.9412 Mar-15 11.93 0.30 39.77

100.15 3.58 27.97

Total

Total

(ii) System Average Interruption Frequency Index (SAIFI)

(iii) Consumer Average Interruption Duration Index (CAIDI)

Total

BEST UNDERTAKINGAnnexure - IV

Performance Report regarding Reliability IndicesFormat for Quarterly /Yearly (APR-14 to MAR-15) Returns to be submitted to the Commission by the Distribution Licensee

(i) System Average Interruption Duration Index (SAIDI)

Annexure - IV

Performance Report regarding Reliability Indices

(1) System Average Interupption Duration Index (SAIDI)

Sr.No. Month Ni = Number of consumers who experienced a

sustained interruption on ith

feeder

Ri = Restoration time for each interruption event on ith

feeder

Nt = Total number of

consumers of the distribution

Licensees area

Sum(Ri*Ni) for all feeders

(excluding agri. Feeders)

SAIDI = (6)/(5)

(1) (2) (3) (4) (5) (6) (7)4 JAN 290302 25.80 1020353 7489839 7.345 FEB 163680 21.91 1020353 3586113 3.516 MAR 303966 40.04 1020353 12170294 11.93

Total 757948 29.25 1020353 23246246 22.78

(2) System Average Interupption Frequency Index (SAIFI)

Sr.No. Month Sum of consumers of ith

feeders which had experienced interruptions =

Sum Ni

Nt = Total number of

consumers of the

distribution Licensees

area

SAIFI = (4)/(5)

(1) (2) (4) (5) (6)4 JAN 290302 1020353 0.285 FEB 163680 1020353 0.166 MAR 303966 1020353 0.30

Total 757948 1020353 0.74

Brihanmumbai Electricity Supply & Transport (BEST) Undertaking (Quarter IV Report) -Q4

Ni = Number of consumers who experienced a sustained interruption

on ith feeder

(3)290302163680303966757948

(3) Consumer Average Interupption Duration Index (CAIDI)

Sr.No. Month SAIDI/SAIFI (1) (2) (5)4 JAN 26.215 FEB 21.946 MAR 39.77

Total 29.31

7.34 0.28

SAIDI SAIFI(3) (4)

3.51 0.1611.93 0.3022.78 0.74

Quarter 2 : July to Sept. 2014

Performance Report regarding Reliability Indices Brihanmumbai Electricity Supply & Transport (BEST) Undertaking (Quarterly Report)

(1) System Average Interruption Duration Index (SAIDI)

Month/Year

Ni =

Number of

consumers

who

experience

d a

sustained

interruption

on ith

feeder

Ri =

Restorati

on time

for each

interrupt

ion event

on ith

feeder

Nt = Total

number of

consumers

of the

distribution

Licensees

area

Sum(Ri*Ni)

for all

feeders

(excluding

agri.

Feeders)

SAIDI

July 2014 412110 31.63 1020353 13037081 12.78

August 2014 357111 30.53 1020353 10902648 10.69

September 2014 371924 21.35 1020353 7939544 7.78

Total 1141145 27.84 1020353 31879273 31.24

(2) System Average Interruption Frequency Index (SAIFI)

Month/Year

Ni = Number

of consumers

who

experienced a

sustained

interruption on

ith feeder

Sum of

consumers

of ith

feeders

which had

experience

d

interruption

s = Sum Ni

Nt = Total

number of

consumers of

the

distribution

Licensees

area

SAIFI

July 2014 412110 412110 1020353 0.40

August 2014 357111 357111 1020353 0.35

September 2014 371924 371924 1020353 0.36

Total 1141145 1141145 1020353 1.12

(3) Consumer Average Interruption Duration Index (CAIDI)

Month/Year SAIDI SAIFI SAIDI/SAIFI

July 2014 12.78 0.40 31.95

August 2014 10.69 0.35 30.54

September 2014 7.78 0.36 21.61

Total 31.24 1.12 28.03

Quarter 1 : April to June 2014

Performance Report regarding Reliability Indices Brihanmumbai Electricity Supply & Transport (BEST) Undertaking (Quarterly Report)

(1) System Average Interruption Duration Index (SAIDI)

Month/Year

Ni =

Number of

consumers

who

experienced

a sustained

interruption

on ith feeder

Ri =

Restoration

time for

each

interruption

event on ith

feeder

Nt = Total

number of

consumers

of the

distribution

Licensees

area

Sum(Ri*Ni)

for all

feeders

(excluding

agri.

Feeders)

SAIDI

April 2014 310770 27.48 1020353 8538876 8.37

May 2014 286623 24.18 1020353 6930738 6.79

June 2014 286505 27.30 1020353 7822515 7.67

Total 883898 26.32 1020353 23292129 22.83

(2) System Average Interruption Frequency Index (SAIFI)

Month/Year

Ni =

Number of

consumers

who

experienced

a sustained

interruption

on ith feeder

Sum of

consumers

of ith feeders

which had

experienced

interruptions

= Sum Ni

Nt = Total

number of

consumers

of the

distribution

Licensees

area

SAIFI

April 2014 310770 310770 1020353 0.30

May 2014 286623 286623 1020353 0.28

June 2014 286505 286505 1020353 0.28

Total 883898 883898 1020353 0.87

(3) Consumer Average Interruption Duration Index (CAIDI)

Month/Year SAIDI SAIFI SAIDI/SAIFI

April 2014 8.37 0.30 27.90

May 2014 6.79 0.28 24.25

June 2014 7.67 0.28 27.39

Total 22.83 0.87 26.51

Performance of Reliability level of BES&T Undertaking FY

2013-2014

Month/Year

SAIDI (System

Average

Interruption

Duration Index)

SAIFI (System

Average

Interruption

Frequency Index)

CAIDI (Customer

Average

Interruption

Duration Index)

April 2013 10.27 (min) 0.25 41.08 (min)

May 2013 12.65 (min) 0.28 45.18 (min)

June 2013 24.02 (min) 0.53 45.32 (min)

July 2013 21.11 (min) 0.44 47.98 (min)

August 2013 13.39 (min) 0.34 40.97 (min)

September 2013 12.78 (min) 0.28 45.64 (min)

October 2013 13.53 (min) 0.31 43.65 (min)

November 2013 8.98 (min) 0.22 40.82 (min)

December 2013 9.35 (min) 0.25 37.40 (min)

January 2014 9.94 (min) 0.32 31.06 (min)

February 2014 5.32 (min) 0.14 38.00 (min)

March 2014 9.77 (min) 0.28 34.89 (min)

YTD Fig. for FY-

2013-2014 151.11 (min) 3.64 41.51 (min)


2012-2013

Month/Year

SAIDI (System

Average

Interruption

Duration Index)

SAIFI (System

Average

Interruption

Frequency Index)

CAIDI (Customer

Average

Interruption

Duration Index)

April 2012 13.27 (min) 0.40 33.18 (min)

May 2012 11.76 (min) 0.30 39.20 (min)

June 2012 13.07 (min) 0.36 36.30 (min)

July 2012 17.09 (min) 0.42 40.69 (min)

August 2012 11.64 (min) 0.29 40.14 (min) September 2012 10.73 (min) 0.30 35.77 (min) October 2012 11.88 (min) 0.29 40.97 (min) November 2012 7.91 (min) 0.23 34.39 (min) December 2012 9.09 (min) 0.22 41.32 (min) January 2013 7.25 (min) 0.23 31.52 (min) February 2013 9.05 (min) 0.23 39.35 (min) March 2013 8.72 (min) 0.23 37.91 (min) YTD Fig. for FY-

2012-2013 133.02 (min) 3.50 38.01 (min)


2011-2012

Month/Year

SAIDI (System

Average

Interruption

Duration Index)

SAIFI (System

Average

Interruption

Frequency Index)

CAIDI (Customer

Average

Interruption

Duration Index)

April 2011 11.41 (min) 0.30 38.26 (min)

May 2011 10.61 (min) 0.36 29.48 (min)

June 2011 19.37 (min) 0.56 33.8 (min)

July 2011 16.40 (min) 0.46 35.39 (min)

August 2011 14.25 (min) 0.46 31.03 (min)


October 2011 14.46 (min) 0.38 38.3 (min)

November 2011 8.49 (min) 0.24 35.37 (min)

December 2011 9.79 (min) 0.27 36.25 (min)

January 2012 9.62 (min) 0.29 33.17 (min)

February 2012 8.18 (min) 0.24 34.8 (min)

March 2012 12.35 (min) 0.4 30.87 (min)

YTD Fig. for FY-

2011-2012

148.58 (min) 4.33 34.31 (min)


2010-2011

Month/Year

SAIDI (System

Average

Interruption

Duration Index)

SAIFI (System

Average

Interruption

Frequency Index)

CAIDI (Customer

Average

Interruption

Duration Index)

April 2010 16.54 (min) 0.48 34.19 (min)

May 2010 12.59 (min) 3.56 34.84 (min)

June 2010 19.75 (min) 0.51 38.78 (min)

July 2010 14.89 (min) 0.45 32.97 (min)

August 2010 11.08 (min) 0.36 30.36 (min)


October 2010 10.41 (min) 0.43 30.59 (min)

November 2010 8.88 (min) 0.32 27.36 (min)

December 2010 8.56 (min) 0.28 30.93 (min)

January 2011 6.57 (min) 0.21 31.44 (min)

February 2011 5.75 (min) 0.20 29.16 (min)

March 2011 11.49 (min) 0.38 30 (min)

YTD Fig. for FY-

2010-2011

137.76 (min) 4.32 31.89 (min)


2009-2010

SAIDI (System SAIFI (System CAIDI (Customer

Average Average Average

Month/Year Interruption Interruption Interruption

Duration Index) Frequency Index) Duration Index)

April 2009 23.67(min) 0.59 40.39(min)

May 2009 9.50(min) 0.36 26.58(min)

June 2009 10.24(min) 0.38 26.87(min)

July 2009 20.61(min) 0.63 32.96(min)

August 2009 11.04(min) 0.40 27.70(min)

September 2009 9.48(min) 0.30 31.15(min)

October 2009 8.79(min) 0.30 29.33(min)

November 2009 9.65(min) 0.32 30.40(min)

December 2009 8.17(min) 0.26 32.01(min)

January 2010 6.93(min) 0.24 29.25(min)

February 2010 8.61(min) 0.27 31.80(min)

March 2010 13.41(min) 0.33 40.55(min)

YTD Fig. for FY- 140.10(min) 4.38 31.99(min)

2009-2010


2008-2009





April 2008 12.82(min) 0.42 30.45(min)

May 2008 10.95(min) 0.36 30.10(min)

Jun 2008 21.36(min) 0.46 46.45(min)

July 2008 18.48(min) 0.42 44.45(min)

August 2008 15.44(min) 0.37 41.36(min)


October 2008 14.56(min) 0.42 34.70(min)

November 2008 9.41(min) 0.23 41.74(min)

December 2008 8.52(min) 0.23 35.31(min)

January 2009 9.11(min) 0.27 33.85(min)

February 2009 6.91(min) 0.24 28.49(min)

March 2009 10.42(min) 0.36 29.25(min)


2008-2009

Performance of Reliability level of BES&T Undertaking

FY 2007-2008





April 2007 17.44(min) 0.43 40.40(min)

May 2007 14.44(min) 0.33 43.34(min)

June 2007 33.56(min) 0.39 56.84(min)

July 2007 19.20(min) 0.51 37.78(min)

August 2007 18.84(min) 0.52 36.40(min)


October 2007 14.50(min) 0.35 41.05(min)

November 2007 13.07(min) 0.30 42.92(min)

December 2007 9.59(min) 0.26 36.54(min)

January 2008 10.79(min) 0.35 30.65(min)

February 2008 8.15(min) 0.26 31.55(min)

March 2008 12.80(min) 0.44 29.01(min)

YTD Fig. For FY- 190.12(min) 4.75 40.01(min)

2007-2008


2006-2007





April 2006 17.63(min.) 0.38 46.40(min.)

May 2006 13.85(min.) 0.35 38.55(min.)

June 2006 21.09(min.) 0.51 41.29(min.)

July 2006 27.50(min.) 0.62 44.17(min.)

August 2006 21.74(min.) 0.57 38.04(min.)

September 2006 17.40(min.) 0.45 38.54(min.)

October 2006 14.84(min.) 0.36 40.84(min.)

November 2006 13.68(min.) 0.31 43.64(min.)

December 2006 13.30(min.) 0.32 41.58(min.)

January 2007 11.51(min.) 0.29 39.48(min.)

February 2007 10.04(min.) 0.25 39.65(min.)

March 2007 14.66(min) 0.33 44.07(min)


2006-2007

best undertaking annexure - iv performance …agri. feeders) saidi july 2014 412110 31.63 1020353...

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