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Demand Response

The Independent Electricity System Operator (IESO) is engaged in a number of demand response initiatives which include both reliability and real-time price demand response programs.

The Emergency Load Reduction (ELRP) is a real-time price based program intended to build the Ontario market's demand response capability and infrastructure. The Emergency Demand Response Program (EDRP) is a reliability-based program intended to mitigate the adverse impact of shortages of energy under stressed system conditions.

Demand Response 3

The Demand Response 3 (DR 3) program was developed by the Ontario Power Authority (OPA) to provide economic incentives for participants to reduce consumption. This is a contract-based program, with DR 3 participants required to reduce electricity use when called upon. In exchange for a commitment to reduce load, DR 3 participants receive an availability payment. For an actual, measured and verified load reduction, DR 3 participants also receive a utilization payment.

Under the program, the IESO is responsible for activating DR 3 – subject to a set of protocols established by the OPA. The IESO dispatches DR participants either directly or through an aggregator to reduce their electricity use.

The IESO is also responsible for settlement and measurement and verification (M&V) services. More detailed information on the activation and dispatch of DR 3 is available on the OPA’s website in the DR3 Dispatch Brief.


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