Energy Imbalance Market (EIM) Overview

ISO advanced market systems automatically balance supply and demand for electricity every fifteen minutes, dispatching the least-cost resources every 5-minutes. In November, 2014 this voluntary energy imbalance market service became available to other grids operating in the West as a way to share reserves and integrate renewable resources across a larger geographic region--reliably and efficiently.


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