Meta says the contract means other Alliant customers will not pay for the energy used by its Beaver Dam data center, though consumer advocates say the secrecy around the deal makes that hard for the public to independently verify.
no figure yet
Alliant Energy Wisconsin, Wisconsin
Alliant Energy (Wisconsin Power and Light) general rate case for 2026 and 2027
Approved Base rate case, docket 6680-UR-125 before the Public Service Commission of Wisconsin.
+$10a month
on a typical bill, as approved
As published by the utility or the commission.
What happens next
The decision is final; the new rate takes effect once the order sets a date. How rate cases work.
What it means for your bill
$
Fileddate not published
Hearingheld or waived
DecisionNov 6, 2025
On billsdate not published
Alliant Energy's Wisconsin utility asked for an electric increase of about 8.3 percent in 2026 and 5.7 percent in 2027, plus a smaller natural gas increase, citing grid investment. The Public Service Commission approved a unanimous settlement, trimming the increase to 5.4 percent in 2026 and 5 percent in 2027 on electric rates, which works out to about 9.57 dollars a month more on a typical residential bill in 2026 and 17.45 dollars a month more in 2027 compared with 2025.
- Status
- Approved
- Utility
- Alliant Energy Wisconsin
- Commission
- Public Service Commission of Wisconsin
- Docket
- 6680-UR-125
- Requested
- 8.3% residential
- Approved
- 5.4% residential
- Typical bill change
- +$9.57 a month
- Decided
- November 6, 2025
- Last checked
- August 29, 2026
Common questions
How much will my Alliant Energy Wisconsin bill go up?
Adds about $10 a month on a typical bill. As published by the utility or the commission.
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?
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
- Alliant Energy submits unanimous settlement agreement on future Wisconsin rates, Alliant Energy, 2025-09-03
- State regulators approve rate hikes for 3 Wisconsin utilities, WPR
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Other Alliant Energy Wisconsin 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