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What changed — Commonwealth Edison (ComEd)

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Capacity, status, permit, grid-request and construction changes over the last three years, each with its source. A change means the same source reported a new value later; two sources disagreeing is not a change. Follow a facility, company, utility, state or ISO by email, or subscribe to the feed in any RSS reader.

Each change is tagged by evidence: ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. filing, deed, permit or grid recordAnnouncedStated by the company or reported in the press; not yet backed by a filing or grid record. company or press claimEst.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. satellite, model or map inferenceHow levels are assigned

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Changes per month by evidence level. Click a month to filter (showing 2026-11; click it again to clear).
2023-122026-11
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  1. Nov 2, 2026
    EdgeConneX CHI02 · IL
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Floor area: 128,800 sq ft → 130,600 sq ft
    Source: OpenStreetMap contributors
  2. Nov 2, 2026
    Equinix Chicago CH3 · IL
    • Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Floor area: 543,600 sq ft → 666,800 sq ft
    Source: OpenStreetMap contributors