MISO board approves MTEP17, $2.6 billion investment 

Includes five interregional Targeted Market Efficiency Projects in partnership with PJM


Dec. 7, 2017


Mark Brown | 317-448-3287

Julie Munsell | 501-378-4145

CARMEL, Ind. — The MISO board of directors today approved 353 transmission projects – representing an investment of $2.6 billion – as part of the 2017 MISO Transmission Expansion Plan (MTEP) aimed at improving energy access and reliability.

The extensive upgrades included in MTEP17 ensure the continuing reliability of the regional grid, interconnect new generation supplies, provide for increased market efficiency and reduce congestion between MISO and neighboring regions.

The plan includes five interregional Targeted Market Efficiency Projects (TMEP) approved in partnership with the PJM Interconnection board of directors. TMEPs are designed to facilitate low-cost, high-value transmission projects to benefit customers and improve seams coordination with MISO’s neighbor.

“These innovative, low-cost projects involve quick-implementation upgrades to reduce congestion across MISO-PJM seams,” said Jennifer Curran, vice president of System Planning and Seams Coordination. “These projects can be accomplished with upgrades to existing equipment and offer positive value for customers.”

The approved projects involve upgrades to existing facilities along the MISO-PJM seam in Illinois, Indiana, Michigan and Ohio. 

The MISO board also signaled their intent to approve in early 2018 an additional MTEP17 project – the Hartburg-Sabine Junction 500-kV Market Efficiency Project in Texas. In November, at the request of the Public Utilities Commission of Texas and Louisiana Public Service Commission, MISO asked the Federal Energy Regulatory Commission to approve a new zone for Texas for cost allocation of Market Efficiency Projects. A decision on the proposal is expected by the end of January 2018.  Accordingly, the MISO board will take final action on the Hartburg-Sabine Junction 500-kV Market Efficiency Project for inclusion in MTEP17 in early February 2018. Once approved, the project will be eligible for MISO’s competitive developer selection process.

"MISO is pleased to recommend the Hartburg-Sabine project, as it will bring economic benefits to a transmission constrained area of Texas,” noted Kent Fonvielle, executive director for the MISO South region.

MTEP is a robust, fully transparent planning process involving numerous discussions with MISO stakeholders across the footprint including MISO members, regulators, customers and neighboring systems. Since 2003, $15.4 billion of MTEP investments have been constructed across the MISO footprint, enhancing system reliability, reducing congestion and enabling public policy requirements such as renewable portfolio standards.

“MISO’s planning efforts are designed to develop transmission plans that offer customers reliable access to the lowest-cost electric energy through markets,” Curran concluded. “We are pleased with this robust plan that supports those goals and also enables the interconnection of more than 5,000 megawatts of generation through new transmission assets.”

The MTEP executive summary provides details about the projects and related analysis.


About MISO
MISO ensures reliable operation of, and equal access to, high-voltage power lines in 15 U.S. states and the Canadian province of Manitoba. MISO manages one of the world’s largest energy markets, with more than $24.7 billion in annual gross market energy transactions. MISO was approved as the nation’s first regional transmission organization in 2001. The not-for-profit organization is governed by an independent board of directors and is headquartered in Carmel, Indiana.