Implementing Voltage Set Points for Enhanced Grid Transparency
Explore how NPRR 776 drives transparency in grid operations through Voltage Set Points, enabling efficient communication between entities within ERCOT. Learn about the current state, post-implementation effects, and requirements for Total Points of Interconnection. Discover the process for TSPs to integrate kV measurements and ensure seamless data mapping via ICCP.
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Presentation Transcript
NPRR 776 NDSWG Stephen Solis System Operations Improvement Manager ERCOT Public July 18, 2017
Voltage Set Points NPRR 776 implements requirements for transparency of both the actual measured value and desired Set Point for the Point of Interconnection (POI) voltage between all affected entities (TO, ERCOT, QSE, and RE). ERCOT is working to leverage existing telecommunications infrastructure (e.g. ICCP) to minimize additional expenses. ERCOT will have a majority of Voltage Set Point work (NPRR 776) in place by 1Q of 2018. Working towards making points available to QSEs by Dec 2017. 2 PUBLIC
Voltage Set Points Current State 3 PUBLIC
Voltage Set Points TSPs will be associating the two ICCP points (Set Point and actual) and generator relationships to the POI kV Measurement device (e.g. on busbar, line, xfmer). ERCOT will be using these relationships in its EMS to map and make available the ICCP points to the appropriate QSE. QSEs are required to send the two ICCP points (Set Point and actual POI kV) to the appropriate Generation Resource. Naming convention should remain for kV measurements, set points/targets should be same but have a .kvt suffix instead of .kv ERCOT will update the ICCP Handbook to reflect naming convention for defined points for QSE and TSP. 5 PUBLIC
Voltage Set Points Total # of POIs 243 Total # of POIs where ERCOT currently has kV measurements 200 Total # of POIs where TSPs currently have KV measurements but will be getting them to ERCOT 29 Total # of POIs where TSPs must add KV measurements 14 6 PUBLIC
Voltage Set Points (29) TSP has kV but not ERCOT Total # of POIs where TSPs currently have KV measurements but will be getting them to ERCOT 29 TSP must submit a NOMCR to create a kV measurement placeholder in the model. These points can then be mapped via ICCP to bring into ERCOT. 7 PUBLIC
Voltage Set Points (14) TSP has no kV measurement Total # of POIs where TSPs must add KV measurements 14 TSP must install measurement equipment. TSP must submit a NOMCR to create a kV measurement placeholder in the model. These points can then be mapped via ICCP to bring into ERCOT. The desired set point and relationships can still be modeled, just with no measurement until the measurement equipment is installed. 8 PUBLIC
Discussion / Q&A 9 PUBLIC
