Energy Imbalance Market (EIM) Overview

EIM’s advanced market systems automatically find the lowest-cost energy to serve real-time consumer demand across a wide geographic area. Offered in 2014 to western utilities in 14 states, it helps reduce carbon emissions by facilitating the efficient connection of renewable resources and enhancing grid resiliency. The EIM also enables grid operators to use low cost excess renewable energy that avoids having to turn off those resources to protect grid reliability, and supports clean energy policies.

 


Benefits of EIM

Efficiency Automated dispatch to balance load and generation is more efficient than manual dispatch.

Reduced costs

A wider portfolio of resources to maintain system balance could reduce the costs of energy and capacity.

Operating flexibility

Improved situational awareness and real-time visibility of transmission constraints, and dispatches resources to reduce and avoid congestion issues. Captures the benefits of geographical diversity of load and resources.

 

 

Overview presentations


FAQs and company profiles


Quarterly benefits reports


Benefit assessments


Implementation agreements

  • Arizona Public Service - Energy Imbalance Market implementation agreement
  • Idaho Power Company - Energy Imbalance Market implementation agreement
  • NV Energy - Energy Imbalance Market implementation agreement
  • PacifiCorp - Energy Imbalance Market implementation agreement
  • Portland General Electric - Energy Imbalance Market implementation agreement
  • Puget Sound Energy - Energy Imbalance Market implementation agreement