The initial draft of NOGRR245 was filed in January 2023 and approved by the board in August, with the Commission's approval effective October 1, 2024.
Market participants were expected to maximize frequency and voltage ride-through capabilities using software, firmware, and parameterization changes without requiring new hardware.
Frequency ride-through requirements: Resources must ensure settings meet maximum levels allowed by equipment standards by 12/31/2025 or synchronization date if after this deadline.
Resources unable to meet the frequency ride-through requirements must submit a report by 04/01/2025 and request an extension or exemption.
Voltage ride-through requirements: Applicable to all resources to meet or exceed IEEE 2800-2022 standards, with deadlines similar to frequency.
Clarification on different terms used, including synchronization dates and commercial operation dates, was provided.
For resources unable to meet voltage ride-through requirements, reports and an extension request are necessary, adhering to historical standards until maximization can be achieved.
Questions around repowering projects, particularly around interconnections and modifications, led to further clarifications on applying new standards.
Questions about resource equipment limitations due to obsolescence addressed the need for detailed documentation.
Discussion highlighted the necessity for such documentation to support requests and ensure compliance, emphasizing accurate and honest submissions.
The meeting's goal was to review a draft DocuSign template regarding resource integration and requirements.
General information and pre-population intentions for DocuSign were discussed, focusing on resource names and site names.
Key questions focused on SGIA dates pre and post-08/01/2024 for determining requirement paths.
Frequency and voltage ride-through capabilities were critically reviewed with emphasis on maximization and settings.
Tables and capability curves were introduced to provide a clear understanding of frequency and voltage capabilities.
Discussions included how balance of plant equipment affects the overall resource capability.
Participants raised concerns and questions about table interpretations, extensions, exemptions, and the methodology for translating turbine-level settings to POIB voltages.
Attestations regarding model accuracy and changes were addressed, touching on the compliance with standards and requirements.
Clarifications were sought on the requirements and whether these apply to all resources or only new units post specific dates.
The meeting included a discussion on various ERCOT requirements, including the steps for requesting exemptions and extensions.
Discussion on requirements for DocuSign submission even without exemptions, and the process for testing maximum capability before the December deadline.
Clarification that maximization efforts should not just meet the bare minimum standards but should enhance equipment's ride-through capabilities.
Emphasis on compliance with PGRR109 when making modifications to improve dynamic response.
Information on planned changes to resource integration templates and guidance on waiting for final versions to avoid issues from changes discussed in the meeting.
Finalized versions of templates expected by February 19, providing guidance on exemption and extension requests.
Concerns raised about regional differences not considered in IEEE 2800 standards and suggestions that performance requirements be managed by ERCOT.
Questions about the definition of 'maximizing' and its implications for response time and reactive power, with responses indicating the need for a practical approach based on good utility practice and ERCOT feedback.
Discussion on the binding nature of pre- and post-maximization values submitted by April 1, and recognition that estimates at different stages might vary.
Importance of reflecting current capabilities in models and providing best estimates in good faith with the understanding that actual values might adjust as validated through testing.
