35 Electric Avenue, Brighton, Boston, Massachusetts; address-context point, not surveyed battery footprintFlatiron Energy
ESTIMATEDDate confidence: ESTIMATEDA target, not a fixed dateHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all ESTIMATED pins65% CONFIDENCEOverall confidence: 65%How well the pin's source and references back up its dates.Weighted average of how firmly 3 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins from 50% to 74% confidence
ISO proposed in-service date, also current queue target; future requested date, not confirmed operation.[1]ISO New England’s January 6, 2025 reliability letter identifies Flatiron’s Lite Brite Storage request in Boston at 300 MW discharge, 150 MW charging and 1,200 MWh, targeting May 26, 2028. The local 200 MW planning proposal has a different stated scope.
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