DGR Modeling and Transition Overview
Explore the stages of Distributed Generation Resource (DGR) modeling, from the current state to the transition state and end state. Learn about the moratorium, conversion of existing DGRs, addition of new DGRs, and the role of various entities in the process.
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Presentation Transcript
NDSWG DGR Mario Alberto de la Garza 9/13/2021
Current - DGR Modeling DGR/DESR Station TSP Station Transmission Network Generating Unit Line 2 PUBLIC
Future - DGR Modeling Transmission Network Unit EPS Meter ERCOT s SE will zero-out these flows. DGR 3 PUBLIC
Future - Multiple DGR Modeling Transmission Network DGR #3 EPS Meter DGR #1 EPS Meter DGR #2 EPS Meter DGR #2 DGR #3 DGR #1 4 PUBLIC
Current State Duration: Now until DGR moratorium is lifted and new RE submissions processed DGR status: Moratorium in place. 20-30 DGRs modeled on the distribution system. Handful of additional DGRs beat the moratorium deadline but have not been modeled. TDSPs role: Provide EPS meter information. Model distribution system to DGRs with enough granularity to place EPS meters and represent basic connectivity to load transformer. ERCOT role: Models DGRs on TDSP s distribution system. 5 PUBLIC
Transition State Duration: After DGR moratorium is lifted until all existing DGRs get converted. DGR status Moratorium is lifted. Some existing DGRs will remain modeled on the distribution system. New DGRs and some existing DGRs will be modeled/reflected to the transmission side of the CIM load. RE role: For existing DGRs, the REs will need to submit two RIOO request to stop their DGR and start new DGR at the transmission level with assistance from ERCOT. New DGRs will submit RIOO requests to register their new transmission connected DGRs. 6 PUBLIC
Transition State, Cont TDSPs role: In collaboration with ERCOT, submit NOMCRs to remove distribution system of existing DGRs when the conversion has been completed. Provide EPS meter information for DGRs. ERCOT role: Model DGRs. Assist REs and TSPs in conversion efforts. 7 PUBLIC
End State DGR Status: All DGRs modeled/reflected on the transmission side of the CIM load. RE Role: Submit RIOO requests to register new transmission connected DGRs. Submit RIOO requests to make updates to existing DGRs. TDSP Role: Provide EPS meter information. ERCOT Role: Model DGRs. 8 PUBLIC
Stages of DGR Current State Transition State End State ~90 days Old DGR Modeling Conversion of existing DGRs New DGR Modeling Addition of new DGRs t Moratorium Lifted All old-style DGRs converted First new-style DGRs into real-time 9 PUBLIC
Q & A QUESTIONS? 10 PUBLIC
