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December 5, 2025

Energy Storage

Brattle Group
Home Batteries Provide 535 MW to CAISO Grid on VPP Test Day
An aggregation of more than 100,000 residential batteries provided an average 535 MW of support to California’s electricity grid during a test to prepare for the hot summer period ahead.
Fluence
New Report: Battery Storage Pivotal for MISO Savings
A new report shows the MISO footprint could ring up $27 billion in additional system costs through 2050 if it and members miss the boat on developing new gigawatts of battery storage.
DTE
DTE Expects to Need Gigawatts of Capacity for Data Centers
DTE Energy reported it is in various stages of discussion to supply as much as 7 GW to new data centers and is on track to reach agreement on the first project by the end of 2025.
Vineyard Wind
Tax Credit Phaseout Threatens Projects, Jobs in New England
The expedited phaseout of federal tax incentives for renewables threatens projects and jobs across the clean energy industry in New England.
PJM
PJM MRC/MC Briefs: July 23, 2025
PJM's Markets and Reliability Committee endorsed by acclamation an issue charge by Constellation Energy focused on how storage as a transmission asset could be implemented in the RTO.
© RTO Insider  
PJM Stakeholders Reject 2027/28 Capacity Auction Parameters
Stakeholders rejected the installed reserve margin and forecast pool requirement values recommended by PJM staff, with some opposed arguing that the inputs remain nebulous.
New York Governor's Office
New York Issues 1st RFP for Energy Storage
New York Gov. Kathy Hochul announced the first of three solicitations for bulk energy storage as part of the state’s goal of deploying 6 GW by 2030.
IESO
IESO Seeks to Fill Growing Regulation Needs
IESO will seek to fill its growing need for regulation services through competitive bids but will resort to bilateral procurements if there is insufficient interest.
SPP
FERC Approves SPP’s ERAS Process, Accreditation
SPP is celebrating several recent FERC orders that have strengthened its resource adequacy framework that it says will secure a “reliable energy future” for its region.
IESO
IESO Seeks Feedback on Revised Storage Model
IESO opened discussions on new rules for storage facilities and hybrid resources that will enable the provision of regulation service.

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