Interregional transmission lines are one of the most practical tools grid operators have to help keep energy costs down while maintaining reliable service. The proposed new interregional lines between MISO and SPP are important not only for strengthening reliability and reducing the risk of outages across the region, but also for delivering benefits that matter to residents across the Southeast, including:
- Affordability for consumers: Supporting growing demand by helping move the lowest-cost energy to where it’s needed.
- Economic opportunity: Enabling commercial and industrial customers to plan and invest in the region, helping strengthen local jobs and economic growth.
- Resilience in extreme weather: Providing grid operators additional options to keep power flowing during heat waves, storms, and other severe events.
MISO and SPP have already completed much of the foundational work needed to move interregional planning from identifying needs to evaluating actionable investments. Now, a new study by The Brattle Group, prepared on behalf of the Southern Renewable Energy Association, recognizes the 24–25 CSP as a significant step forward for coordinating interregional transmission planning across the two regions. The report also addresses four key issue areas within the CSP and offers recommendations to help stakeholders consider practical next steps.
Fill out the form below and we will email you a link to download the report where you can review the findings and recommendations for interregional transmission planning - an important input for policy decisions focused on reliability, affordability, and resilience in the Southeast.
