Strengthening the FIR process for computational loads

Challenge

Data center growth is outpacing legacy interconnection processes and frameworks. Inconsistent load modeling and incomplete data submissions delay studies and increase reliability risk, particularly as high-density, transmission-connected load clusters grow. New regulatory requirements from NERC will accelerate mandatory requirements to address interconnection timelines and reliability risks.

Approach

Deep dive analysis of the overall interconnection process, including planning through implementation and operations. Develop large load-specific requirements providing detailed guidance on three core areas:

• Data needs: Defining minimum data completeness standards for interconnection submissions.
• Power quality monitoring: Establishing measurement and reporting expectations at the point of interconnection.
• Ride-through performance: Specifying voltage and frequency ride-through expectations consistent with NERC and FERC reliability standards.

Results

• Reviewed recent interconnection packages for large loads, evaluating power quality data, model quality, and root causes of study delays.
• Established model performance expectations within PSSE and PSCAD simulation platforms.
• Developed a customer request portal to standardize and streamline data collection at intake.
• Developed interconnection requirements for large loads, covering ride-through expectations, shared substation configurations for load transfer, advanced metering, and performance measurement.
• Reviewed large loads on the utility’s system and defined design performance expectations to minimize grid impact.
• Coordinated with distribution providers, cooperatives, and large load customers to align on shared expectations and responsibilities.