Portland General Electric joins Energy Imbalance Market as Western grid ties deepen - Portland Business Journal
Portland General Electric became the fifth member of the Energy Imbalance Market (EIM), which gives utilities short-term access to the lowest-cost power available across grid barriers, according to the article.
PGE joins Arizona Public Service Co., NV Energy, PacifiCorp and Puget Sound Energy in the market, which encompasses 38 million customers. The EIM uses software to balance supply and demand in five-minute intervals, but utilities are still required to schedule resources in advance to meet expected energy demand. Supporters say the market has saved hundreds of millions of dollars while using renewable energy that otherwise would have been wasted on the grid.
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