Two Major SERC Windows Open in February: Are You Prepared?

In response to policy shifts such as FERC Order 2023A, the interconnection processes of SERC-region utilities has been rapidly evolving over the past year, and securing timely, cost-effective grid access has never been more challenging—or more critical to project success. With shifting regulations, increasing queue congestion, and rising network upgrade costs, developers must take a strategic, data-driven approach.

Interconnection in SERC differs from organized markets like PJM, SPP, or MISO, where a centralized interconnection queue exists. Instead, SERC operates on a utility-by-utility basis, with each major utility setting its own deadlines, queue procedures, and study timelines. Because of this, SERC developers must closely track multiple application windows to secure their place in the queue.

Two major SERC interconnection application windows open in February. Read the details below to find out how you can prepare now. 

Duke Energy (Carolinas)

• Interconnection Window: 45 days, opens February 1, 2026
• Key Challenges: High interconnection volume, long study timelines, increasing upgrade costs. PSCAD models and benchmarking needed; Order 2023 Tariff is effective 11/2025, introduces condensed application window
• Recent Changes: Tariff adjustments to be compliant with Order 2023A

Southern Company (Georgia Power, Alabama Power, Mississippi Power)

• Interconnection Window: 45 days, opens February 16, 2026
• Key Challenges: PSCAD model required with application package
• Recent Changes: Update to interconnection requirements, returning to original posted requirement to benchmark PSSE UDM and Generic and PSCAD

EPE specializes in helping energy developers and IPPs navigate complex interconnection landscapes across the SERC region and the rest of the U.S. Our team of grid experts, engineers, and regulatory specialists can provide data-driven insights and strategic guidance to help your SERC project move forward efficiently. 

To learn more and map out your strategy for securing queue positions, reducing risks, and accelerating your projects, contact our team of experts using the form below.