Accelerating Reliable Integration

MISO members are experiencing an unprecedented surge in large load interconnection requests, driven by data centers, advanced manufacturing, and other energy-intensive facilities. These projects are reshaping the grid, and MISO is committed to enabling timely, reliable integration through expedited interconnection and transmission planning processes like Expedited Resource Addition Study (ERAS) and MTEP's Expedited Project Review (EPR). 

Why Large Load Integration Matters

• Growing Demand: Large load requests have surged dramatically with the potential to add thousands of megawatts to the system.
• Fast Timeline: Large loads can be built in 1.5–3 years, while transmission and generation take much longer.
• Reliability Challenges: Unique characteristics of large loads impact grid stability and operations.
• Urgent Need: Members need solutions now and federal policy mandates faster interconnections.

Key Focus Areas

To address these challenges while maintaining grid reliability, MISO is working toward three critical outcomes:

1.  Interconnection Reliability Requirements: Clear guidelines and requirements for large loads at the time of interconnection to  ensure system stability.
2. Speed to Reliable Power: Large loads can secure service quickly without compromising system reliability. Concepts under discussion include:
   • Zero Injection Generator Interconnection Agreement (ZGIA): Loads associated with generation. 
   • Firm Service Step-Up: Loads receive incremental service until needed upgrades are complete. 
   • Non-Firm Service Step-Up: Loads receive incremental service until needed upgrades are complete provided electricity usage can be curtailed by operators during pre-emergency conditions. 
3. Reliable Operations: Operate the grid efficiently with substantial levels of large load, ensuring it can handle unique behaviors and demands.