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PJM Economic Load Response enables Demand Resources to voluntarily respond to PJM Locational Marginal Price ("LMP") prices by reducing consumption and receiving a payment for the reduction. The Day-Ahead alternative provides a mechanism by which any qualified market participant may offer Demand Resources the opportunity to reduce the load they draw from the PJM system in advance of real-time operations and receive payments based on day-ahead LMP for the reductions. Economic Load Response provides direct access to the wholesale market to end-user customers through agent PJM members, Curtailment Service Providers ("CSPs"), to curtail consumption when PJM LMPs reach a level where it makes economic sense.

Energy Market Growth
The growth of participation by end-use customers since 2002 is significant. The graphic shows the increase in total MWh of demand response provided through CSPs from year to year.

Volume (MWh) of Demand Response Participation in the PJM Market