Tuesday, September 22, 2015

Portland Utility Could Join Western Imbalance Market

Portland General Electric could join CAISO Energy Imbalance Market (Utility Dive)

Portland General Electric (PGE) will formally explore joining the Energy Imbalance Market (EIM) operated by the California Independent System Operator (CAISO), the utility announced last week. 

CAISO has been operating since November 2014 in parts of California, Oregon, Washington, Utah, Idaho, and Wyoming. It now includes the active participation of the Warren Buffett-owned PacifiCorp utilities, and will soon include NV Energy, Puget Sound Energy (PSE), and Arizona Public Service (APS).

Because of access to a wide geographic dispersion of resources, the EIM has reduced fossil fuel use in favor of low-cost renewables to meet short-term imbalances in supply and demand. PacifiCorp and the ISO saved a combined $21.4 million over the first eight months of operation.

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