New CAISO TPP Requirement FAQ - Electromagnetic Transient Modeling
GridSME Reliability & Compliance Team • May 7, 2019

In preparation for the upcoming CAISO Transmission Planning Process Requirement pertaining to the Electromagnetic Transient (EMT) Modeling Guide for Inverter Based Generators (effective May 31, 2019), GridSME has developed a Frequently Asked Questions (FAQ) bulletin to support effected entities.

GridSME has observed that this requirement has created numerous questions for generators within the CAISO footprint. If your facility is a Category 1 or 2 you may be required to submit an EMT model suitable for sub-synchronous resonance (SSR) studies. These FAQs are designed to provide a better understanding of the EMT model requirements.

Questions addressed in this bulletin:

  • What is an EMT Model and what is it used for?
  • How do I know if I have to provide this information to CAISO?
  • What category has the CAISO identified my generating plant as?
  • What information is required to complete an EMT model?
  • What is the format that I need to submit the required data?
  • What happens if I do not comply on time with the CAISO TPP BPM?



If you would like more information on how this requirement may impact your organization, don’t hesitate to reach out. We look forward to assisting you with the EMT submission requirements or answering any questions that you may have.


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By GridSME's Grid Integration Team November 4, 2024
Welcome Casey James: Our New Senior Meter Engineer at GridSME We are thrilled to announce that Casey James has joined the GridSME team as our Senior Meter Engineer! With over seven years of experience in metering engineering and management, Casey brings a wealth of expertise to our clients, supporting their needs in large-scale energy projects, regulatory compliance, and advanced metering solutions. Casey holds a B.S. in Electrical and Electronic Engineering, specializing in Power from California State University, Sacramento, and has built a reputation as an expert in controls and metering integration, battery energy storage systems, and both retail and wholesale metering. His skills also extend to consulting on metering regulations on a national level, where he has guided critical stakeholders and driven innovation in metering standards for the evolving power sector. In previous roles, Casey has led teams of engineers and technicians across California, establishing best practices, training programs, and compliance workflows for efficient, accurate project delivery. He has been instrumental in developing metering methodologies for some of the largest solar and battery energy projects in the country and has substantial experience with CAISO-compliant inspections, SCADA implementations, and programming complex metering algorithms. At GridSME, Casey’s technical acumen and leadership will be invaluable as he works to deliver precise, reliable, and compliant metering solutions for our clients. We are excited to have him on board to help advance our mission and further support our clients in the energy industry.  Please join us in welcoming Casey to the GridSME family!
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