+$0.13a month
Madison Gas and Electric, Wisconsin
MGE Very Large Customer tariff filing
Pending Rider or surcharge before the Public Service Commission of Wisconsin.
No residential dollar figure published yet
The filing does not state a typical-bill impact we can verify. We will add one when the commission staff or the consumer advocate publishes it.
What happens next
Next comes a hearing, then a decision from the Public Service Commission of Wisconsin. Many states give the commission a deadline of roughly seven to eleven months from filing. How rate cases work.
Fileddate not published
Hearingnot scheduled yet
Decisionpending
On billsafter the decision
Madison Gas and Electric filed a request with state regulators on July 15, 2026 to create a new tariff specifically for very large customers, the term commonly used for hyperscale data centers, meant to make those customers cover the cost of the grid buildout they require rather than spreading it to homes and small businesses. Cloverleaf Infrastructure, the company that has assembled several Wisconsin data center sites, has moved to intervene in the case. The tariff was still pending before the Public Service Commission as of August 2026.
What it means for your bill: Nothing changes on home bills unless and until this tariff is approved, but its purpose is to keep future data center grid costs off residential rates.
- Status
- Pending
- Utility
- Madison Gas and Electric
- Commission
- Public Service Commission of Wisconsin
- Data center linked
- Yes. The filing ties part of the cost or the tariff design to data center load. The projects themselves: isadatacentercoming.com.
- Last checked
- August 29, 2026
Common questions
How much will my Madison Gas and Electric bill go up?
That has not been published yet; we will add it once the commission staff or the consumer advocate release a figure.
When would the new rates start?
Not yet set. That is decided along with the case, usually as part of the commission's final order.
When is the hearing?
Not scheduled yet. Check back, or ask for an email alert below.
How do I comment?
The Public Service Commission of Wisconsin accepts written comments on the docket while the case is open, and holds public hearings on major cases. Commission site.
How to comment
The Public Service Commission of Wisconsin accepts written comments on the docket while the case is open, and holds public hearings on major cases. Commission site. Citizens Utility Board of Wisconsin represents households in this case.
Sources
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Other Madison Gas and Electric matters
Other pending cases in Wisconsin
1
We Energies general electric and gas rate case for 2027 and 2028
We Energies, WI
As filed, a typical residential bill would rise about 13 dollars a month in 2027 and 8 to 9 dollars more in 2028, a combined 16.3 percent, but how much of that is really tied to data centers versus other grid needs is one of the contested questions in the case.
+$13a month
2
Wisconsin Public Service electric and gas rate case for 2027 and 2028
Wisconsin Public Service, WI
As filed, a typical WPS residential bill would rise about 11.19 dollars a month in 2027 and 5.43 dollars more in 2028; nothing has been decided yet.
+$11a month
3
Transmission upgrades like this are typically billed to every electric customer in the state through transmission charges, not just to the data center that made the new line necessary, which is why the cost allocation question matters for ordinary bills even outside the counties involved.
no figure yet
4
Oracle subscription to Point Beach nuclear power costs
We Energies, WI
If regulators approve it, Oracle would cover part of We Energies' nuclear power costs instead of spreading them to all customers, which the company says will lower everyone's fuel charges rather than raise them.
no figure yet