CAISO/WEIM

RSS

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,...

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...

Calpine CEO Thad Hill confirmed Friday that the Houston-based merchant generation company is looking to be acquired. Citing anonymous sources, Bloomberg reported on Wednesday that Energy Capital Partners is in advanced talks to purchase Calpine and could announce a deal as soon as this week. During a call to discuss second-quarter...

By Jason Fordney FOLSOM, Calif. — The CAISO Board of Governors last week approved a set of market rules designed to aid the integration of distributed energy resources and transmission-connected energy storage into the ISO’s markets. ISO staff closely consulted with market participants over the past year to develop the...

By Jason Fordney FOLSOM, Calif. — The CAISO Board of Governors last week greenlit new rules that allow the grid operator to constrain the operations of gas plants across the state and the Western Energy Imbalance Market (EIM), part of a package of initiatives drawn up in response to the...

By Jason Fordney Southern California Gas Co.’s Aliso Canyon gas storage facility resumed injections Monday, despite Los Angeles County officials’ request that a state appeals court prevent the reopening. “SoCalGas must begin injections to comply with the [state’s] directive to maintain sufficient natural gas inventories at Aliso Canyon to support...

By Rich Heidorn Jr. While PJM stakeholders were meeting last week to consider yet more changes to the Reliability Pricing Model, public power representatives took their case to Congress, telling the House Energy and Commerce Committee on Tuesday that they should be released from participating in the increasingly complicated capacity...

By Jason Fordney California officials Thursday cleared the Aliso Canyon natural gas storage facility to resume injections, even as momentum builds among lawmakers, regulators and the public to permanently close the site of the massive methane escape near Los Angeles. The methane leak caused by a broken pipe casing at...

By Robert Mullin CAISO will lean heavily on increased output from conventional generators — and a backstop of regulation reserves — to fill the void left by reduced energy production from California solar resources during next month’s solar eclipse. The grid operator estimates that about 4,194 MW of utility-scale solar...

By Jason Fordney and Robert Mullin California’s landmark program to combat climate change has received a new lease on life — 10 years, to be exact. Brown | State if California Both houses of the California State Legislature voted late Monday to extend the state’s greenhouse gas (GHG) cap-and-trade program...