Western Energy Imbalance Market (WEIM)

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Backers of manufactured methane say it could replace natural gas and help California meet its goal of 100% carbon neutrality by midcentury, but skeptics call it an unrealistic way gas companies are trying to hold onto the value of their plants and pipelines as demand decreases. The issues were addressed...

The coronavirus pandemic has curtailed demand for electricity and made it challenging for new entities to go live with the Western Energy Imbalance Market, but two recent activations went well despite the awkward timing, the EIM’s Governing Body heard Wednesday. Governing Body members were also briefed on EIM benefits and...

By Hudson Sangree Xcel Energy and three other Colorado utilities decided to join CAISO’s Western Energy Imbalance Market instead of SPP’s Western Energy Imbalance Service in December because of projected economic benefits. Those benefits could have been far greater, however, if the other former members of the Mountain West Transmission...

By Hudson Sangree FOLSOM, Calif. — As he prepares to leave CAISO this summer, CEO Steve Berberich said a regional transmission organization is essential for maximizing renewable energy use across the West, but that it won’t coalesce under the ISO unless California lawmakers admit other states to its Board of...

By Robert Mullin SEATTLE — Preliminary findings from a Western Electricity Coordinating Council study indicate that inclusion of day-ahead trading in the Energy Imbalance Market will yield reliability benefits that outweigh any expected risks for the Western Interconnection. Among the benefits: increased coordination across a broader geographic area; uniform application...

By Hudson Sangree The Governance Review Committee (GRC) of CAISO’s Western Energy Imbalance Market continued laying out the parameters of its big job this year in a stakeholder call Wednesday, following the release of a scoping paper Jan. 29. In that paper, the GRC put forward a preliminary set of...

By Hudson Sangree CAISO’s Western Energy Imbalance Market delivered more than $60 million in benefits to its participants in the fourth quarter of 2019, bringing the total benefits of the interstate real-time market to nearly $862 million since it began operating in November 2014, the ISO announced Thursday. The biggest...

By Hudson Sangree The Governing Body of CAISO’s Western Energy Imbalance Market filled the second of two unexpected vacancies Wednesday, selecting Robert Kondziolka, who recently retired after four decades with Arizona’s Salt River Project. Robert Kondziolka | CAISO Kondziolka fills a seat on the five-member board left vacant when Travis...

By Hudson Sangree SACRAMENTO, Calif. — The largest utility bankruptcy in U.S. history looks likely to continue through at least the first half of 2020, while CAISO seeks to expand its Energy Imbalance Market and meet reliability requirements as a capacity shortfall looms. Pacific Gas and Electric must exit its...

By Rich Heidorn Jr. CAISO’s Western Energy Imbalance Market is expanding its footprint to Colorado. Xcel Energy, Black Hills Colorado Electric, Colorado Springs Utilities and Platte River Power Authority announced Tuesday they will join the EIM as soon as 2021. Although the companies "have different business models, customers and geography,"...