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.
EIM Quick Links
Automated dispatch to balance load and generation is more efficient than manual dispatch.
Benefits of EIM
A wider portfolio of resources to maintain system balance could reduce the costs of energy and capacity.
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.
FAQs and company profiles
Quarterly benefits reports
Arizona Public Service - 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