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.
no figure yet
Madison Gas and Electric, Wisconsin
Madison Gas and Electric general rate case for 2026 and 2027
Approved Base rate case before the Public Service Commission of Wisconsin.
+$0.13a month
on a typical bill, as approved
As published by the utility or the commission.
What happens next
The new rate took effect January 1, 2026 and is already on your bill. How rate cases work.
What it means for your bill
$
Fileddate not published
Hearingheld or waived
Decisiondecided
On billsJan 1, 2026
Madison Gas and Electric's standard rate case for 2026 and 2027 was approved by state regulators through a unanimous settlement, raising a typical residential electric bill by only about 13 cents a month in 2026 but roughly 5.44 dollars a month more in 2027, plus higher natural gas charges, for a combined increase regulators put at about 31.3 million dollars. This general case set MGE's overall cost of service and was not specifically about data centers.
- Status
- Approved
- Utility
- Madison Gas and Electric
- Commission
- Public Service Commission of Wisconsin
- Typical bill change
- +$0.13 a month
- On bills from
- January 1, 2026
- Last checked
- August 29, 2026
Common questions
How much will my Madison Gas and Electric bill go up?
Adds about $0.13 a month on a typical bill. As published by the utility or the commission.
When would the new rates start?
They already did, on January 1, 2026.
When is the hearing?
No hearing date is on record for this case.
How do I comment?
The comment period closed once this case was decided; its result is above.
Sources
Get an email when this changes
One email when a rate case is filed, gets a hearing date, or is decided for Madison Gas and Electric. Nothing else.
Unsubscribe with one click. We do not sell the list.
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
MGE Very Large Customer tariff filing
Madison Gas and Electric, WI
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.
no figure yet
5
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