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167 / 179

TOTAL

10,197

DRR Type I

2,353*

DRR Type II

111

Load-Modifying Resources

4,860

Behind-The-Meter Generation

4,984

Emergency

242

TOTAL

2,554

Real Time Demand Response

873

Real Time Emergency Response

875

Energy Efficiency

700

Load Management

105

TOTAL

2,387

Day-Ahead Demand Response

331

Demand Side Ancillary Services

2

Emergency Demand Response

323

Targeted Demand Response

536

Installed Capacity - Special Case Resources

2,061

TOTAL

7,374

Ec o n o mic

893

Emergency

6,481

IS O-NE

NYIS O

7.4%

7.7%

PJM

5.6%

2009 State of the Market Report

Table 5: Comparison of DR Programs Across RTOs. 2009

Demand Response

MIS O

Program/Resource

Quantity in MW

Pct of Resource Mix 6.8%

  • *

    Type I capacity for Planning Year 2010 is only 210 MW due to certain pumped storage resources no longer

offering their capacity when pumping as Type I (effective September 1, 2009). As of February 2010, Type I resources can also offer spinning reserves, subject to a 10 percent participation cap.

Notes: Non-Midwest ISO resources are not all mutually exclusive. Due to various operating characteristics of each program or resource, specific program-to-program comparisons are not readily feasible.

Sources: Midwest ISO; The Brattle Group, “Demand Response in the Midwest ISO: An Evaluation of Wholesale Market Design”, January 29, 2010.

C.

Improving DR Integration in Midwest ISO Market

The Midwest ISO has made significant efforts to reduce the barriers to integrating DR resources into existing markets. As the quantities of DR resources increase, one can expect that they will be deployed much more frequently to satisfy peak loads and respond to system contingencies. Therefore, it will be increasingly important to ensure that the real-time markets produce efficient prices and other market outcomes when DR resources are deployed.

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