1 data center project in Janesville City
Who decides here: the City Council of Janesville City votes on zoning. The Rock County may review big projects too.
In Janesville City
Nearby (within 15 miles)
Local votes and rules
🗳️ Public vote
Janesville voters will decide on November 3, 2026 whether big projects (over $450 million) at the old GM/JATCO site need voter approval. Residents put it on the ballot through a petition during the data center fight. The city ended data center talks with Viridian in June 2026.
📌 Other · Rock County
A Rock County committee unanimously rejected a countywide data center pause. County lawyers said the county has no zoning power over the towns, so a county pause could not be enforced and could invite lawsuits. Towns decide land use in Rock County.
✋ Turned down
Janesville's City Council voted unanimously to let its letter of intent with Viridian Acquisitions expire, ending talks on an $8 billion data center at the old GM plant site.
What you can do
- Get told first.
We'll email you if anything changes in Janesville City. - Go to council meetings.
Anyone can speak. Big projects usually need a public hearing. - Ask questions in writing.
Use our checklist.
🔔 Get told first
⚡ Your electric company
Depending on where you live in Janesville City: Rock Energy Cooperative (co-op (owned by its members)) or Wisconsin Power & Light Co. (company) or Wppi Energy (municipal mktg authority).
Big data centers need a lot of power. Who pays for new power lines depends on state rules. See the rules in Wisconsin.