Scope
The Michigan Public Service Commission's order of 6 November 2025 in Case No. U-21859 approves large load amendments to Consumers Energy's General Primary Demand Rate (Rate GPD), on an application that sought to add a Data Center Provision. The order applies the new large load provisions to loads of 100 MW or greater, makes eligibility end-use neutral rather than limited to data center customers, sets a 15-year contract term after a ramp-up period of no more than five years and an 80% minimum billing demand, adopts a $100,000 upfront application fee reconciled to actual costs, and directs Consumers to file tariff sheets within 30 days. It applies only in Consumers Energy's electric service territory.
- Geographic scope
- Consumers Energy electric service territory, Michigan
- Jurisdiction
- State
- Authority type
- Regulator or commission
- Issuing authority
- Michigan Public Service Commission
Dates
- Adopted
- 6 November 2025
- Effective
- Effective date not stated in the source
- Scheduled expiration
- See completion condition
- Ended
- Not recorded as ended
- Completion condition
- The order states no expiration.
- Source document
- 6 November 2025
- Last checked
- 23 September 2026 (earlier than tracker date 5 October 2026; not an automatic status change)
Summary
On 6 November 2025 the Michigan Public Service Commission approved, in Case No. U-21859, large load terms in Consumers Energy's Rate GPD after a contested case that began as a request to add a Data Center Provision. The terms apply to loads of 100 MW or more regardless of end use, with a 15-year contract term after a ramp-up of up to five years, an 80% minimum billing demand and a $100,000 upfront fee. The order notes that data centers are the only customers likely to be assigned to these provisions in the near future.
What this does not establish
- The approved large load provisions are end-use neutral; the order says eligibility should not be limited to data center customers, while noting that data centers are the only potential customers likely to be assigned to them in the near future.
- The effective date of the order is not stated in its text; the adoption date is the Commission meeting date.
- The compliance tariff sheets filed after the order, and their effective date, were not opened; the Commission-hosted rate book is on michigan.gov, which does not permit automated access.
- Other provisions of the order, including aggregation of commonly owned sites, exit fee, collateral, notice periods, cost allocation studies and reporting, are not restated.
- Whether any party appealed to the courts was not checked; courts.michigan.gov disallows automated access in its robots.txt.
Unresolved questions
- The effective date of the Rate GPD compliance tariff sheets.
Relationships
Supersession means a later instrument replaces the earlier legal effect. Repeal links identify the repeal instrument and the measure it ends. A later implementation or related letter is not treated as a replacement unless the record says so.
- Related, not a replacement MPSC Case U-21859: rehearing of Consumers Energy large load terms denied (In effect)
- Related, not a replacement MPSC Case U-21990: DTE special contracts for the Saline Township data center (In effect)
Sources
https://adms.apps.lara.state.mi.us/Mpsc/ViewCommissionOrderDocument/27293