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December 18, 2025

Generation

ISO-NE
Growth of BTM Solar Drives Record-low Demand in ISO-NE
ISO-NE experienced record-low demand on Easter Sunday because of mild temperatures and high behind-the-meter solar output, making 2025 the fourth consecutive year ISO-NE has set a low-load record.
Shutterstock
Oxbow Incident: FERC Denies Solar Farm’s Waiver
FERC has denied a solar developer's waiver request for a 24-month extension of its commercial operation deadline for a planned facility in northwestern Louisiana.
Center for Land Use Interpretation
APS to Keep Cholla Plant Closed Despite Trump Order Backing Coal
APS officials said they are looking to a non-coal future for the recently closed Cholla coal-fired power plant, despite President Donald Trump’s calls to keep the facility running.
Admin Monitor
Texas PUC Approves 765-kV Transmission Option for Permian Basin
The Texas Public Utility Commission approved a plan that allows ERCOT to authorize the region’s first extra-high-voltage transmission lines and meet the petroleum-rich Permian Basin’s rapidly growing power needs. 
© RTO Insider 
Stakeholders, NERC Respond to FERC Large Loads Investigation
Stakeholders urged FERC to consider reliability and consumer costs when weighing approaches to co-located large loads.
© RTO Insider
Firm Fuel Proposal Continues to Confuse NYISO Stakeholders
NYISO returned to the Installed Capacity Working Group with more modifications to the tariff language and general structure of its firm fuel capacity accreditation proposal, but stakeholders still appear to be skeptical of it.
NextEra Energy Resources
NextEra Energy Continues to Rack up Renewables Deals
NextEra Energy posted solid first-quarter financials and said its renewables portfolio continued to grow even as President Trump began implementing pro-fossil fuel policies.
© RTO Insider
Maine PUC Seeking Feedback on Transmission, Generation Procurement
The Maine PUC is seeking feedback and indications of interest for a procurement of generation and transmission capacity to connect at least 1,200 MW of clean energy in Northern Maine to ISO-NE.
MISO
MISO: New Software Effective, Faster than Previous Queue Study Process
MISO concluded that Pearl Street’s SUGAR automation software is an effective alternative to the power flow simulations it used to conduct to identify network upgrades for generation projects in the queue.
© RTO Insider
FERC Partly Approves NYISO Order 2023 Compliance Filing
FERC approved most of NYISO’s proposed plan to comply with Order 2023, denying several of its proposed variations to the commission’s pro forma rules and directing the ISO to submit an additional compliance filing in 60 days.

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