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PowerFactorImprovementYesyoucan!

Jeffre M. Bowen CEM

Dillards,Inc.

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.

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whatPower

Factor

is!

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atour

Distribution

Center

in

Gilbert,

AZ

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PowerFactorImprovement(ratedefinition)

Ifthepowerfactorfallsbelow85percentlaggingatanymeteringpointduringanybillingperiod,thenUTILITYmay:

Ad ustkWhand/orkWdurin this eriod,forbillin ur oses,toequal85percentofkVAh and85percentofkVA.KWhand/orkWwillbeadjustedproportionallyfortheonpeak,shoulder

peakand

off

peak

periods.

Requirethecustomertocorrectthepowerfactortoanacceptablelevel.

RequirethecustomertobecontinuouslymeteredwithaseparatemeterthatregisterskVA,kilovars (kvar)oractual

.

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avoidpenalty

300

capacitor

system

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2007

.

2008

.

2009(projectinstalledApril2009)

85.2%

2010

86.5%

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PowerFactorFinancialImpact

2007

$34,318 inpenalties

$32,489inpenalties

2009

(project

installed

April

2009)

3,672.47inpena ties

2010(equipmentturnedofffor4months)

$5,010.47inpenalties

TotalSavings

to

Date

$58,126Saved!

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PowerFactorFinancialImpact

TotalSavings(cumulative)

$58,126

$32,040

ProjectCost

,

Simplepayback

19Months

Interna

Rateo

Return

48%

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2007 2010PowerFactor

90.0

100.0

70.0

80.0

rFac

tor

50.0

60.0Pow Total

30.0

40.0

1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12

2007 2008 2009 2010

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PowerFactorImprovement

2007

2010

$10,000.00

2007 2010

Penalty

Totals

1 $3,418.14

2 $5,532.83

3 $6,364.92

$6,000.00

$7,000.00

$8,000.00

, ., .

5 $7,002.19

6 $6,490.13

7 $8,547.69

$2,000.00

$3,000.00

$4,000.00

$5,000.00Total8 $7,417.72

9 $9,338.74

10 $7,808.77

$0.00

$1,000.00

1 2 3 4 5 6 7 8 9 10 11 12

, .

12 $3,252.44

GrandTotal $75,490.92

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PowerFactorImprovement

2009

20102009 $3,672.47

1 $692.14

$2,500.00

2009

2010Penalty

2 .

3 $1,202.98

4 $1,001.895 $0.00

6 $0.00

0.00

$1,500.00

$2,000.008$0.00

9 $0.00

10 $0.00

11 $0.0012 $0.00

$500.00

$1,000.00 Total2010 $5,010.47

1 $0.00

2 $2,126.28

3 $1,634.84

4 $880.34

$0.00

1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12

2009 2010

.

6 $0.007 $0.00

8 $0.00

9 $0.00

10 $0.00

11 $0.00

12 $0.00

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uestions