1

Updates to Deemed Impacts for Load Control Measures

Kyle Hemmi

Frontier Associates LLC

January 30, 2008

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Demand Reduction: Program 2

Program 2: Res, Multifamily, AC, 33% cycling

Utility kW Savings

ESPRE Load Control Simulation, Texas 0.65

* ESPRE Modeling calibrated to Texas Metering data and Building Characteristics

3

AC Load Curve: Peak Day Single-family

PSCO AC Load Shapes

3.5

2.5

0

0.5

1

1.5

2

2.5

3

3.5

4

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

Hour Ending

De

ma

nd

(k

W)

Normal

Control

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Summary of Deemed Impacts

Deemed Savings

Program 1: Res, Single Family, AC, 33% cycling

1.0

Program 2: Res, Multifamily, AC, 33% cycling 0.65

Program 3: Res, Single Family, Pool Pump, 100% cycling

0.33

Program 4: Res, Single Family, Electric Water Heater, 100% cycling

0.35