Ride-through becomes a coordinated facility obligation.

PRC-029-1 is intended to keep applicable inverter-based resources connected through defined frequency and voltage excursions, subject to the standard’s permitted exceptions and documented equipment limitations. The compliance challenge is not a single relay setting. It is the chain linking facility design, protection, controls, OEM capabilities, studies, operating practice, and retained evidence.

That chain often crosses owners: plant engineering may understand the design basis, an OEM may control inverter logic, a protection group may own relay settings, operations may manage outages and changes, and compliance may hold the evidence. A defensible program makes those interfaces explicit.

Build one traceable line from requirement to plant behavior.

What a reviewer should be able to follow.

• A dated applicability memorandum and facility inventory tied to the registration record.
• Approved one-lines, protection philosophies, design criteria, studies, OEM information, and setting files for the in-scope configuration.
• A requirement-to-evidence map showing where each obligation is performed, who owns it, and which record proves completion.
• Records of settings review, approval, field implementation, independent checks, and later changes.
• Engineering support for any documented hardware limitation, with affected units and required follow-up clearly identified.
• Event records and corrective actions that show how actual facility behavior is evaluated against the design basis.

Sequence the work before the deadline drives it.

Controlling materials to keep in the project file.

Major reliability interfaces are decided before operations begin.

Site topology, utility interconnection, protection schemes, load-control behavior, communications, models, monitoring equipment, and project records are expensive to retrofit after commissioning. Early readiness work lets a data center preserve the information and decision trail likely to matter without treating the draft as settled law.

Current Draft 1 uses a 50 MW total-connected-load threshold and electrical equipment connected at 100 kV or above in its proposed computational-load framework. Those details can change. The right first step is a documented threshold watch and facility dossier, not an unsupported registration conclusion.

Assemble the facts before the definitions settle.

Put readiness decisions into the project plan.

Readiness is an ownership problem before it is a filing problem.

• Can the organization state who would own CLO and CLOP responsibilities if the current framework were approved?
• Can the team reproduce the facility configuration and connected-load position used in its applicability assessment?
• Are utility study assumptions traceable to the final design and as-built equipment?
• Can operators retrieve useful, time-aligned event data without a vendor-led emergency project?
• Does a formal trigger require reassessment after material load, topology, control, protection, or ownership changes?
• Is one accountable leader tracking Project 2026-02 and translating ballot changes into project impacts?

Follow the standards project—not summaries alone.

Start at the event and work backward to the evidence.

PRC-028-1 establishes disturbance-monitoring and reporting obligations for applicable IBR facilities. A readiness review should ask whether the organization can identify an event, retrieve the required sequence-of-events, fault-recording, and dynamic-disturbance information, validate its quality, preserve it, and deliver it through a controlled workflow.

Every link matters. A technically capable device can still fail the program if channels are misnamed, clocks are not aligned, files are inaccessible, settings drift, ownership is unclear, or a request waits in the wrong queue.

Test capability as a system, not as an asset list.

Make the first real request feel routine.

Run one tabletop and one technical drill.

• Select an in-scope facility and a realistic event window without warning the response team in advance.
• Issue a mock request through the normal intake channel and track acknowledgments, owners, and elapsed steps.
• Retrieve source files, preserve originals, and validate channels, units, scaling, and time alignment.
• Assemble the release package with an evidence index, approvals, transmittal record, and explanation of any gap.
• Record process and technical defects separately, assign corrective actions, and retest material failures.

Keep the standard and implementation plan together.