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RateBase

Utility rate cases, without the paywall.

Free access to proceedings, case economics, and large-load tariffs.

All cases →View state coverage55 open proceedings in the current record

Open rate cases

Current requests, procedural stages, and next scheduled events.

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DTE Gas

MI · U-21973

$237.46M

Testimony

Final MPSC order expected

NYSEG

NY · 25-E-0375

$464.4M

Filed

No dated event published

Duke Energy Carolinas

NC · E-7 SUB 1329

$1,002M

Hearing

Expert Witness Hearing: Application of Duke Energy Carolinas, LLC for Adjustment of Rates and Charges Applicable to Electric Service in North Carolina and Performance-Based Regulation

AES Ohio

OH · 25-958-EL-AIR

—

Testimony

Evidentiary hearing

TNMP

TX · 58964

$33.8M

Settlement Pending

No dated event published

We Energies

WI · 5-UR-112

$277.9M

Filed

No dated event published

Utility regulation by state

Commission structure, rate-setting rules, operating utilities, open cases, regional markets, and large-load policy for each covered state.

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RateBase state coverage mapA map of the contiguous United States highlighting Arizona, Florida, Georgia, Illinois, Louisiana, Michigan, New Jersey, New York, North Carolina, Ohio, Oregon, Pennsylvania, Texas, Virginia, and Wisconsin.ArizonaFloridaGeorgiaNew JerseyNorth CarolinaPennsylvaniaTexasIllinoisMichiganNew YorkOhioOregonVirginiaWisconsinLouisiana

Select a highlighted state to explore its regulatory record

Large load by state

Qualifying demand, contract terms, minimum payments, collateral, exit protections, and approved utility tariffs.

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Pennsylvania

5 utilities

Statewide model tariff

Statewide model tariff with utility-specific implementation

The PA PUC adopted a model tariff for every jurisdictional electric distribution company. It applies to new or incremental loads at or above 50 MW individually or 100 MW in aggregate. The model sets the statewide baseline, but each utility must file its own enforceable tariff and obtain Commission approval.

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Michigan

2 utilities

Utility terms and special contracts

Consumers terms approved; DTE tariff follow-up ordered

The MPSC approved Consumers Energy terms for data centers and other very large customers, including a 100 MW threshold, 15-year contract, and 80 percent minimum billing demand. It separately approved a DTE data-center contract with safeguards and directed DTE to file a large-load tariff.

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North Carolina

2 utilities

Utility-specific planning and programs under Commission oversight

No dedicated statewide large-load tariff was identified in the reviewed Commission summary.

The Commission has directed Duke to develop load-management programs with large customers; enforceable terms remain utility- and filing-specific.

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Wisconsin

2 utilities

Utility-specific tariff

We Energies has effective standardized tariffs. Wisconsin Power and Light has a preliminary Commission decision modifying one customer agreement and requiring a stand-alone tariff for future large loads.

Wisconsin does not use one statewide large-load tariff. The PSC has approved standardized We Energies tariffs, separately modified a Wisconsin Power and Light customer agreement, and directed that utility to file a future stand-alone tariff. Applicability depends on utility service territory and the approved instrument.

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Arizona

1 utility

Utility-specific tariffs and energy service agreements

Arizona is reviewing statewide consistency while APS, TEP, and other providers use utility-specific extra-high-load tariffs and negotiated agreements.

Large-load customers are expected to fund customer-caused infrastructure and provide financial security; docket E-00000A-25-0069 remains under development.

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Florida

1 utility

Utility-specific tariff filings under FPSC review

No single statewide retail tariff; Duke has a pending 50 MW large-load proposal.

Large-load protections are established through utility tariffs and contracts reviewed by the FPSC.

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Georgia

1 utility

Georgia Power utility-specific rules

Effective Georgia Power rules apply to new customers at 100 MW or more; contracts and implementation terms remain utility- and customer-specific.

The Commission approved minimum-billing and longer-contract authority with Staff oversight and contract filing. This is not a statewide rule for every electric provider.

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Illinois

1 utility

Utility-specific tariff review

ComEd's large-load-related distribution-extension tariff is in appellate review; Illinois has not adopted one statewide retail large-load tariff.

Track ComEd's docket and any later utility-specific tariff filings rather than treating a party proposal as a statewide rule.

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Louisiana

1 utility

State policy and utility-specific large-load implementation

The LPSC is developing guidance for large-load additions and private-use electrical networks; enforceable service terms remain utility-specific.

Track R-37905 and X-37921 as policy matters, not as already-effective statewide retail tariffs.

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New Jersey

1 utility

Utility-specific tariff

Utility-specific precedent; no statewide model tariff

Rockland Electric's effective SC7 tariff includes a High Voltage Distribution option originally approved to facilitate a 25 MW data center in Mahwah. It is a utility-specific delivery rate, not a statewide large-load framework.

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New York

1 utility

Statewide large-load interconnection and cost-allocation review

Case 26-E-0045 is evaluating planning, interconnection, cost allocation, and tariff reforms for large loads; utility tariffs remain in force unless changed by Commission order.

The proceeding is active and should not be presented as a final statewide tariff.

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Ohio

1 utility

Utility-specific tariff

AEP Ohio data-center tariff approved and in use

PUCO approved a settlement directing AEP Ohio to file data-center tariffs and lift its connection moratorium. AEP Ohio subsequently reported binding contracts under the tariff, confirming that the utility-specific framework is in operation.

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Texas

1 utility

Grid interconnection rules

ERCOT interconnection rules plus Batch Zero study process

PUCT-approved ERCOT rules establish modeling and interconnection requirements for large loads, including visibility standards beginning at 25 MW. The newer Batch Zero process studies qualified projects of 75 MW or more together and is now moving through applicant classification and transmission planning.

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Virginia

1 utility

Utility-specific tariff

Dominion GS-5 approved; effective January 1, 2027

The Virginia SCC approved Dominion Energy Virginia's GS-5 class for customers demanding 25 MW or more. Beginning January 1, 2027, covered customers face an 85 percent minimum for contracted distribution and transmission demand and a 60 percent minimum for generation demand.

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Oregon

0 utilities

Utility-specific large-customer tariffs and demand proceedings

Oregon is addressing rapid large-customer demand through utility-specific tariff, planning, and resource proceedings rather than one statewide retail tariff.

Track each utility's approved tariff and current PUC proceeding.

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Operating utilities

Legal identity, parent ownership, state jurisdiction, active proceedings, and current authorized economics.

Profiles
167
States
15
With open cases
47
All utilities →