Planning and designing a 21st century grid takes experience and expertise in addressing the varying system needs across regions, variable resources and locations, load impacts and efficiencies across the complex transmission grid that exists today. In order to function as a true network across the seams that currently separate different regions, the grid must be planned in such a way that it is both resilient and efficient to meet our energy needs now and in the future.

Effective grid planning is the key to building a transmission grid that serves today's 21st-century energy needs. Local and regional plans developed by ITC are evaluated through an independent process governed by the respective RTO.

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Projects and Initiatives

Transmission Development Lifecycle


  • Apply established planning criteria for reliable and efficient systems.
  • Identify system issues and needs.
  • Weigh solutions and develop alternatives.
  • Continually study methodology and process refinement.



ITC leverages a variety of software technologies as part of our approach to grid planning and engineering, including PSSE, PROMOD, Python Tools, TARA, GridView, Velocity Suite and EMTP-RV.


ITC has developed a robust set of planning criteria and interconnection requirements to maintain the reliability of our system. ITC performs annual assessments to determine how our systems respond to a number of events and conditions.

Interregional Vision

  • Interregional transmission infrastructure enables the grid of the future and provides benefits to customers.
  • The benefits of interregional transmission infrastructure are broad and long-lasting, considering the long-lived nature of transmission assets.
  • Current RTO transmission planning processes prevent construction of beneficial interregional projects by only measuring the benefits of transmission in limited ways.
  • Arbitrary regional differences should not be allowed to prevent beneficial interregional projects from moving forward.