California Independent System Operator news as it lands — grid, market, and regulatory coverage scoped to CAISO, each story summarized for what it changes, and open to the agent.
Latest story discovered Oct 12, 2026, 9:45 AMGET /api/v1/wire →
AI summaryConstruction of ContourGlobal Project Sterling in Mohave County, AZ proceeds; Tesla reportedly to buy ~1 TWh/year under a long-term PPA; project comprises 509 MW solar (AC 450 MW) and 1.4 GWh of lithium-iron-phosphate battery storage.
AI summaryContourGlobal and Tesla-linked Sterling project in Mohave County, Arizona, a 450 MW AC solar farm with 360 MW of battery storage under construction; expected online in 2028, with about 1.1 TWh annual output and a PPA framework tied to Tesla’s volume.
AI summaryContourGlobal to supply Tesla with 509 MW solar and ~1.4 GWh storage at Project Sterling in Mohave County, AZ; long-term PPA covers about 90% of output; facility to begin operations in 2028 and connect to WAPA/CAISO markets.
AI summaryContourGlobal breaks ground on Project Sterling, a 509 MWp solar-plus-storage facility in Mohave County, Arizona, including 360 MW / 1.4 GWh storage with a long-term PPA to Tesla; construction expected to complete in 2028.
AI summaryRevision of ACS-26 Rate Schedules; Public Hearing and Opportunities for Public Review and Comment – BPA announces expedited BP-26E rate proceeding to revise ACS-26 rates related to CAISO EIM neutrality and uplift charges with a target effective date of Feb 1, 2027; prehearing conference scheduled for Oct 21, 2026; participation deadlines set.
AI summaryVista Irrigation District weighing opposition to SDG&E's Golden Pacific Powerlink transmission line affecting Lake Henshaw lands in Warner Springs, with potential routes and timing spanning 2026-2032; district cites hydrologic, water quality, fault and wildfire risks.
AI summaryCal-ISO issues Restricted Maintenance Operations notice for Monday-Tuesday 10 a.m.-10 p.m. to preserve grid reliability during heat wave; possible Flex Alert and potential outages if conditions worsen.
AI summaryPortland General Electric joins CAISO Extended Day-Ahead Market (EDAM) to expand day-ahead energy trading; EDAM went live in May with initial benefits; additional Western utilities to join in coming years.
AI summarySouthern California grid under strain due to October heat and wildfires; utilities urge conservation amid outages and an active Bouquet Fire in Los Angeles County.
AI summaryCAISO and PG&E clash over the ISO's proposed ‘large load’ definition at a meeting as data-center loads grow on the California grid.
AI summaryFERC rejects TransAlta 202(c) cost recovery plan for Centralia unit, limiting recovery to costs within the Northwest reliability assessment area and DOE-initiated 202(c) orders; conversion to natural gas planned for 2028 remains in view.
AI summaryPGE enters CAISO Extended Day-Ahead Market (EDAM) on Oct 1 with smooth operation and aims to gain customer benefits, including potential $14 million in 2027 from day-ahead market participation.
AI summaryPGE has begun participating in CAISO Extended Day-Ahead Market (EDAM), enabling energy buy/sell in the day-ahead window as part of regional market integration; impacts include enhanced reliability and potential cost savings for customers as EDAM ramps up.
AI summaryCAISO and SPP commit to seams solution, submitting joint report to FERC; workshops and governance considerations noted, signaling ongoing regulatory and market-design actions affecting cross-market coordination.
AI summaryCalifornia Governor Newsom signed bills to expand virtual power plants (VPPs) and related grid-cost containment measures, enabling aggregations of batteries, EVs, and controllable devices to reduce grid spending and peak demand; implementation will be through SB 905 and SB 913 and accompanying bills, with CPUC and California ISO role in measurement and incentives.
AI summaryPortland General Electric accompanies CAISO into the Extended Day-Ahead Market (EDAM), signaling regional market expansion and estimated annual customer savings of about $14 million once fully built out.
AI summaryCalifornia passes SB 913 and SB 905 approving virtual power plants using customer batteries, EV chargers, and other distributed resources to reduce utility expenditures and shift demand; CPUC/Energy Commission/ISO to establish valuation and market pathways for aggregated resources, with implementation guidance due by June 30, 2027.
AI summaryCalifornia Energy Commission (CEC) Chief Noemí Gallardo discusses California’s rapid BESS expansion, including 21 GW of battery storage since 2019, emphasis on long-duration storage (LDES), streamlined interconnection and the Opt-In Certification Programme for state approval of BESS projects.
AI summaryPortland General Electric launches participation in CAISO Extended Day-Ahead Market (EDAM), enabling day-ahead energy trading and projected customer savings of about $14 million annually once fully built out.
AI summaryCAISO and SPP submitted a joint report to FERC outlining coordinated Western Market Seams coordination objectives, including data exchange, model alignment, education, and reliability initiatives, with a plan for a longer-term seams coordination strategy and a public comment period.