PJM to discuss how hybrid resources are modeled in energy markets

PJM Interconnection is scheduled to discuss a possible change in how hybrid power resources are represented in its markets on November 4. The question is whether a facility could remain a hybrid for capacity purposes while its Energy and Ancillary Services units are represented independently. The discussion is not a final decision.

The Market Implementation Committee agenda, marked as of October 28, lists the hybrid-resource market model as a working item. It calls for education on mixed-technology facilities and discussion of interests and design components. The agenda could change before the meeting.

PJM staff’s August issue charge examines a requirement that resources treated as hybrids in the capacity market also use a hybrid model in Energy and Ancillary Services. It describes operating and settlement obstacles for facilities combining technologies or serving different buyers, including arrangements using surplus interconnection. One example would retain hybrid capacity participation while allowing independent Energy and Ancillary Services units.

The issue charge draws a boundary around that example. Capacity-market modeling and the assignment, transfer, allocation and use of CIRs are outside its scope. It does not propose a broad separation of capacity rights. The document anticipates further review of governing documents and manuals, along with endorsement steps, for an eventual approved solution; it does not establish a final rule or implementation date.

Jeff St. John’s October 29 Canary Media report, corrected October 30, connects the market-design question to stakeholder interest in co-located batteries and data-center power demand. The reporting describes an opportunity and stakeholder expectations; it does not establish that this proposal will be adopted, that additional batteries will be built or that prices or reliability will change.

Rowan Finch analysis: A market model affects how a mixed-technology facility can participate. The example under discussion could change the treatment of its Energy and Ancillary Services units while leaving its capacity participation as a hybrid. That distinction matters to the battery opportunity, but it is not itself a change to the excluded capacity-modeling or CIR rules. Those boundaries, project-specific arrangements and later decisions may still shape what developers can do. The scheduled discussion is one step toward a design, not evidence of a battery in service or a lower electricity bill.