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Home > Planning

Expanding the grid

We are making it easier to interconnect new power plants to the grid, which is accelerating progress on important energy and environmental policy. See how we are leveling the playing field for diverse resources competing in the energy market.


Get connected


Generator interconnection

We provide a streamlined process for interconnecting generating facilities.

Reliability requirements

We ensure adequate resources to serve all customers.

Transmission planning

We follow an open and transparent process that actively engages stakeholder and public input.

​Interregional transmission planning

The ISO and regional entities throughout the western interconnection collaborate during their transmission planning processes.

Reports and bulletins

ISO publishes regular reports and other documents that are important to understanding generation interconnection, reliability and transmission planning.