Using Regional-First Planning to Streamline Large Load Interconnection

Using Regional-First Planning to Streamline Large Load Interconnection

RMI
RMIApr 14, 2026

Why It Matters

Aligning interconnection and transmission planning cuts capital spend, speeds connections, and gives regulators clearer insight into cost prudence, benefiting ratepayers and grid reliability.

Key Takeaways

  • Centralized queue consolidates large‑load requests for better data visibility
  • System‑wide projects are identified before local upgrades, reducing redundancy
  • Regional‑first planning closes regulatory gaps in transmission cost oversight
  • Expected transmission cost savings and faster interconnection timelines

Pulse Analysis

The rapid rise of data centers, cryptocurrency farms, and other high‑consumption facilities is reshaping the U.S. electricity landscape. Traditional interconnection processes treat each large load as a separate project, while system‑wide transmission planning runs in parallel, often leading to duplicated studies and fragmented upgrades. This siloed approach inflates costs and delays connections, prompting analysts to explore more holistic solutions.

Regional‑first planning tackles the inefficiency by creating a single, region‑wide model that first maps out the transmission projects needed to serve all pending large‑load requests alongside broader reliability goals. A centralized interconnection queue improves data visibility for Regional Transmission Organizations, enabling them to design shared corridors and avoid redundant lines. After system‑wide projects are identified, only the residual, incremental upgrades are pursued, subject to tighter regulatory scrutiny. The framework also bridges the regulatory gap: by surfacing cost and technical data to both FERC and state regulators, it ensures that load‑related upgrades undergo meaningful prudence reviews rather than default approvals.

If adopted, regional‑first planning could reshape utility investment strategies and policy priorities. Utilities would benefit from lower capital expenditures and clearer cost allocation, while regulators gain a transparent, data‑driven basis for approving projects. Federal actions—such as establishing an Independent Transmission Monitor or mandating standardized data reporting—could accelerate adoption and further tighten oversight. As the grid evolves to accommodate megawatt‑scale loads, a coordinated, region‑focused planning paradigm offers a pragmatic path to reliable, affordable power for both new customers and existing ratepayers.

Using Regional-First Planning to Streamline Large Load Interconnection

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