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Home » Topics » RTO Insider » CAISO/WEIM

CAISO/WEIM
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CAISO Demand Response Problems Erode Participation

Aug 15, 2017
By Jason Fordney Frequent rule changes and an uncertain market structure are causing dissatisfaction among CAISO demand response providers and eroding participation in the programs, those providers say. Problems with data verification and settlement required the ISO to recalculate its 2016 DR results, and providers say there are other issues...
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CAISO Launches Generator Interconnection Effort

Aug 13, 2017
By Jason Fordney CAISO said it will kick off an initiative to refine its generation interconnection process later this year as part of an ongoing effort to accommodate renewables and keep its rules updated. The grid operator is in the beginning stages of its Interconnection Process Enhancements 2018 program but...
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FERC CAISO EIM Powerex

Wary FERC Approval for Powerex EIM Agreement

Aug 10, 2017
By Jason Fordney FERC staff have accepted CAISO’s implementation agreement for Canadian energy marketer Powerex to join the Western Energy Imbalance Market (EIM) but cautioned that the arrangement could be subject to further scrutiny once the commission meets after restoring its quorum. “Preliminary analysis indicates that CAISO’s proposed implementation agreement...
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demand response caiso california energy commission

CAISO Resettling 2016 Demand Response Results

Aug 9, 2017
By Jason Fordney SACRAMENTO, Calif. — While CAISO has in recent years made strides in incorporating demand response into its wholesale market, it was forced to recalculate its 2016 DR settlements because of missing performance data, the grid operator said Tuesday. ISO representatives, DR companies, utilities and others industry participants...
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Critical Energy Infrastructure Information EEI FERC

CAISO Drops EIM Third-Party Transmission Plan

Aug 8, 2017
By Jason Fordney CAISO has dropped a proposal that would have allowed third-party transmission providers to participate in the Western Energy Imbalance Market (EIM) after getting negative feedback on the plan — but also said it might revisit the idea in the future. The grid operator proposed that transmission owners...
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Commitment Cost and Default Energy Bid Enhancements

CAISO Developing New Bidding Rules

Aug 6, 2017
By Jason Fordney FOLSOM, Calif. — CAISO is refining market rule changes to more accurately reflect suppliers’ costs of producing and dispatching electricity while also increasing their bidding flexibility. Stakeholders attending an Aug. 3 workshop learned more about recent proposed changes to bidding rules in the ISO’s Commitment Cost and...
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Western RTO CAISO regionalization FERC

CAISO Flex Capacity Effort Targets Increased Variability

Aug 3, 2017
By Jason Fordney CAISO is developing new tools to deal with the variable output from the increasing amount of renewable and non-dispatchable generation on its grid, an effort that could bring fundamental changes to California’s resource adequacy rules. The tools are meant to deal with the highly variable output of new...
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caiso eclipse rooftop solar

Solar Eclipse Prep Nearly Complete at CAISO

Aug 2, 2017
Robert Mullin
By Robert Mullin CAISO is nailing down its final preparations for the Aug. 21 solar eclipse, which is expected to take about 5,600 MW of utility-scale and rooftop solar generation off the California grid during morning hours when those resources would typically be ramping up output. Still, the grid operator...
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day-ahead market day-ahead prices caiso

Day-ahead Prices Going Negative in CAISO

Aug 1, 2017
By Jason Fordney Negative day-ahead prices surged in CAISO during the first quarter as combined surpluses of solar and hydroelectric output frequently left the market upside-down. Prices went negative during 51 hours in the day-ahead market over the three-month period, compared with just three hours in all of last year,...
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EIM CAISO exports pacificorp puget sound

CAISO Leads EIM Q2 Benefits, Exports

Aug 1, 2017
Robert Mullin
By Robert Mullin CAISO hauled in the largest share of the $39.52 million in benefits produced by the Western Energy Imbalance Market (EIM) during the second quarter, the grid operator said in a report released Monday. The ISO was also the market’s dominant exporter of energy over the period as...
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