IBR models (PSCAD and PSSE) are essential deliverables for renewable energy developers. They demonstrate to ERCOT how you will operate and respond to potential grid disturbances. Until recently, it was okay to submit your as-built dynamic model after COD approval, but that has changed. Read on to find out how to stay in compliance with the latest update.
New Pgrr-109 Requirement for As-Built Models
In the past, ERCOT allowed you to submit your as-built dynamic model within 30 days of starting commercial operation. But as of May 1, 2024, a new requirement prohibits you from claiming commercial operation without providing the model beforehand.
What happens if you don’t comply with the new requirements? You cannot begin commercial operations or participate in ERCOT’s energy market.
Why Are As-Built Dynamic Models Important?
In order to improve the accuracy of its planning studies and make sound decisions during operation of the grid, ERCOT relies on the resource entities to submit as-built dynamic models that represent the true dynamic behaviors of the site. The new PGRR-109 requirement aims to hold IBR entities more accountable for providing accurate models.
How To Stay In Compliance With PGRR-109 in ERCOT
Managing the process of creating an as-built dynamic model is not a simple task. To do this efficiently, you need proper management of the models from the beginning of the project planning stage all the way to the commissioning and testing stage. It must be a cohesive process overseen by a team that can take care of every aspect, rather than individual or disconnected contractors.
What To Know About the ERCOT Parameter Verification Report (PVR)
Even though the ERCOT PVR is still due within 30 days after the COD, it is very important to make sure that the field parameters match the model parameters during the commissioning stage before the COD. You can achieve this by making sure the model parameters studied during the QSA model are entered into the field PPC/Inverter/Turbine during the commissioning process. This is important so that once the commissioning is completed and approved by ERCOT, a PVR showing matching parameters can be completed within the required 30 days.
EPE Specializes in ERCOT As-Built Model Development
Our team of ERCOT experts has decades of experience managing clients’ model development throughout the planning, commissioning, and testing period — as well as post-COD MOD-026 and MOD-027. Don’t let these new requirements cause unnecessary delays. Find out how EPE can create your next as-built dynamic model by contacting us here.
You can also reach out directly to the team by sending an email request to Associate Director of NERC and Regulatory Compliance, John Zong (jzhong@epeconsulting.com), or Engineering Manager, Zhi Qu (zqu@epeconsulting.com).