Data Center Atlas Intelligence LayerSignals are concise, sourced changes captured as data-center projects, power, policy, and local conditions evolve across the Great Lakes.
Power signal
City of Port Washington · Ozaukee County
ATC refiles $2.5B-$2.7B Port Washington grid package
What changed
American Transmission Company refiled its revised eastern Wisconsin transmission and substation application after regulators required a restart. Reporting places the revised cost at $2.5 billion to $2.7 billion. The filing restarts review; it is not construction approval.
Changed Sep 14, 2026 99% confidence 1 public source
Why it matters
The grid package is critical to serving the $15 billion Port Washington campus and now carries a materially larger cost and a fresh regulatory clock.
Watch next
PSC completeness review · route changes · cost allocation · final approval