Data Center Large-Load Power Tracker

Showing 39 of 39 utilities

• Alabama Power

  AL · Non-RTO Southeast · Southern Company

  ●ApprovedOct 2026

  PSC contract review procedures under Act 2026-610 (Docket 33709)

  Alabama Power contracts with data centers of 150 MW or more now go through a PSC review meant to confirm they cover the cost of service.

  • Applies to: 150 MW+ peak demand on one or more contiguous parcels
  • Each contract goes to the PSC for a vote within 90 days
  • Deemed approved if the PSC does not act
  • Full contract and cost analysis filed confidentially with PSC staff and the Attorney General
  • Pricing must be expected to recover the cost of serving the data center

  Sources: ABC 33/40, Alabama PSC adopts new review rules for large data center power contracts (2026); NBC 15, Alabama PSC opens review of data center power contracts, sets August comment deadlines (2026); WBRC, Public can read Alabama Power's data center contract, just not parts that could affect bill (2026)

• Entergy Arkansas

  AR · MISO · Entergy

  ●ApprovedJan 2026

  Special contract for a large data center (Docket 25-055-P); Fair Share Plus principles

  Arkansas regulators approved an Entergy special contract for a large data center; Entergy applies its Fair Share Plus principles to new large loads.

  • Contract terms long enough to recover new infrastructure costs
  • Rates cover incremental cost to serve plus a share of the existing grid

  Sources: Arkansas Advocate, Arkansas Explained: Understanding the data center boom and debate (2026); Entergy, Data centers and Entergy: Fair Share Plus (2026)

• Arizona Public Service

  AZ · Non-RTO West · Pinnacle West

  ◌In reviewJul 2026

  Extra High Load Factor (XHLF) rate schedule, in the 2026 APS rate case

  Arizona regulators are deciding changes to the APS rate for very large, steady users like data centers, with a vote due by December 31, 2026.

  • Changes to the XHLF rate that applies to large users such as data centers
  • Proposed formula rate that would assign cost increases caused by extra-large users to those customers
  • Updated cost allocation for system investments

  Sources: Arizona Corporation Commission, What's Next in the APS Rate Case (2026); APS, APS Rate Case Hearing Concludes, Process Moves to Next Phase (2026)

• Salt River Project

  AZ · Non-RTO West

  ●Approved2025

  Large Customer Integration Process (LCIP) and E-67 price plan

  SRP has new large loads pay upfront for the upgrades they need, and new accounts of 20 MW or more face minimum bills.

  • Applies to: 20 MW+ of forecasted load (minimum billing under E-67)
  • Customer pays upfront for its specific grid upgrades after SRP's study
  • Minimum billing for new accounts of 20 MW or more
  • SRP plans service only after the project has zoning and local approval

  Source: Salt River Project, Data Center Facts (n.d.)

• Tucson Electric Power

  AZ · Non-RTO West · UNS Energy (Fortis)

  ●ApprovedDec 2025

  Special electric service agreement for Project Blue (Pima County)

  Arizona regulators approved a TEP contract to serve one large data center, with minimum bills and early exit protections for other customers.

  • Individual contract reviewed by the Corporation Commission
  • Capacity limited to 286 MW
  • Early termination protections
  • Minimum monthly bills
  • Service from existing generation starting in 2027

  Sources: Arizona Public Media, Arizona regulators approve TEP deal to power controversial Pima County data center (2025); Tucson Electric Power, Five things to know about powering data centers (n.d.)

• Pacific Gas and Electric (PG&E)

  CA · CAISO · PG&E Corporation

  ●ApprovedJul 2025

  Electric Rule 30 (interim), transmission-level service

  California regulators approved an interim PG&E rule for very large loads that pay up front for transmission work, with refunds still undecided.

  • Applies to: Transmission-level interconnections
  • Available only to customers that agree to pay up front for needed transmission work
  • Refund terms and cost sharing left to a final CPUC decision

  Sources: California Public Utilities Commission, CPUC Streamlines Electric Grid Connections for High-Energy Users Like Data Centers and EV Chargers (2025); Stoel Rives, CPUC Weighs Cost Recovery for Interconnection of Large Load, Including Data Centers (2025)

• Southern California Edison

  CA · CAISO · Edison International

  –No specific rule found

  No SCE-specific large-load tariff found; under a 2026 state law, SCE must file data center tariffs that the CPUC sets by January 1, 2028.

  Sources: Mayer Brown, California's Governor Signs Nation's Most Comprehensive Data Center Laws, Reshaping Regulation of Energy, Water and Land Use (2026); Ballard Spahr, California Signs Sweeping Data Center Energy Laws (2026)

• Xcel Energy (Public Service Company of Colorado)

  CO · Non-RTO West · Xcel Energy

  ◌In reviewApr 2026

  Proposed large-load rate class and Clean Transition Tariff

  Xcel filed a large-load rate class for new loads above 50 MW in Colorado; the commission is still hearing the case.

  • Applies to: New or added load above 50 MW
  • PUC principles: $250,000 nonrefundable study deposit
  • PUC principles: exit fee equal to 75% of the contract's electricity
  • Signed service and interconnection agreements before load enters the forecast
  • Optional Clean Transition Tariff for added zero-emission supply

  Sources: High Plains Public Radio, Xcel proposes new rate scale for data centers to shield consumers from added power costs (2026); Axios Denver, How a large load tariff could work for Xcel (2026); Earthjustice, Public Interest Groups Seek Intervention in Xcel Energy Data Center Tariff Proceeding (2026)

• Georgia Power

  GA · Non-RTO Southeast · Southern Company

  ●ApprovedJan 2025

  PSC large-load rule for customers above 100 MW

  Georgia regulators let Georgia Power hold new customers above 100 MW to longer contracts with minimum bills, and review each contract.

  • Applies to: Above 100 MW
  • Contracts of up to 15 years
  • Minimum billing
  • Covers transmission and distribution costs as construction proceeds
  • Each contract filed with the PSC for review

  Sources: Data Center Dynamics, Georgia PSC approves new billing rules for data centers and large load customers (2025); Atlanta News First, New Georgia Power rates approved for data centers to address 'staggering' energy use (2025); The Atlanta Journal-Constitution, Georgia Power deal to serve $20B OpenAI data center under regulators' microscope (2026)

• MidAmerican Energy

  IA · MISO · Berkshire Hathaway Energy

  –No specific rule found

  No standard large-load tariff was found; MidAmerican serves data centers through negotiated arrangements and says they pay for the infrastructure and generation they need.

  • Data centers fund the substations and transmission needed to serve them

  Source: MidAmerican Energy, Data center costs (n.d.)

• Idaho Power

  ID, OR · Non-RTO West · IDACORP

  ●ApprovedMay 2023

  Special contracts for customers above 20 MW; Schedule 20 for speculative high-density loads

  Idaho Power serves every customer above 20 MW under its own state-approved contract, as with Meta's Kuna data center in 2023.

  • Applies to: Above 20 MW
  • No standard large-load tariff: each customer above 20 MW needs its own contract approved by the Idaho PUC
  • Contract ties the customer to its ramp schedule
  • Separate Schedule 20 class for speculative, relocatable loads such as crypto mining

  Sources: Idaho Public Utilities Commission, Final Order No. 35777, Case IPC-E-21-42 (2023); Idaho Public Utilities Commission, Final Order No. 35461, Case IPC-E-21-37 (2022); KIVI-TV, Idaho lawmaker aims to shield customers from rising power rates tied to data centers (2026)

• Ameren Illinois

  IL · MISO · Ameren

  –No specific rule found

  No Ameren Illinois large-load tariff was found; Ameren reported 850 MW of signed construction agreements in Illinois in early 2026.

  Source: Nasdaq, Ameren Q1 earnings call highlights (2026)

• ComEd

  IL · PJM · Exelon

  ●ApprovedMar 2026

  Large-load security deposit provisions

  Illinois regulators let ComEd require deposits from large-load developers, sized to each project's energy needs, to cover costs if a project leaves or underuses facilities.

  • Security deposit sized to the project's energy needs
  • Deposit covers costs if the customer closes, moves or underuses facilities built for it
  • Transmission Security Agreements used for large projects

  Sources: Capitol News Illinois, Regulators OK ComEd's plan to increase deposit costs for large-load projects like data centers (2026); NPR Illinois, Regulators OK ComEd's Plan to Increase Deposit Costs for Large Load Projects Like Data Centers (2026)

• Indiana Michigan Power

  IN, MI · PJM · AEP

  ●ApprovedFeb 2025

  Large load tariff settlement (IURC Cause No. 46097)

  Indiana regulators approved terms requiring large new I&M customers to sign 12-year contracts and pay for at least 80% of contracted demand.

  • Applies to: 70 MW+ at one site or 150 MW+ in aggregate
  • 12-year minimum contract
  • Pays at least 80% of contracted demand each month
  • Higher collateral requirements
  • Exit fee capped at five years of minimum charges
  • Planned cuts of more than 20% of contracted capacity need regulator review

  Sources: Renewable Energy World, Midwest utility gets regulatory approval for large load tariff settlement (2025); American Electric Power, Indiana Michigan Power Receives Order in Large Load Settlement (2025); Utility Dive, Indiana Regulators Approve Large Load Interconnection Settlement With AEP, Amazon, Google (2025)

• Evergy (Evergy Kansas Central, Evergy Metro, Evergy Missouri West)

  KS, MO · SPP · Evergy

  ●ApprovedNov 2025

  Large Load Power Service (LLPS) tariff

  Kansas and Missouri regulators approved Evergy settlements requiring large users to pay at least 80% of contracted demand under long contracts with collateral.

  • Applies to: Expected peak of 75 MW or more; existing customers adding 75 MW
  • Pays at least 80% of contracted demand each month
  • Collateral equal to two years of minimum bills
  • 12-year minimum term plus optional ramp of up to five years
  • Customer pays its own connection costs

  Sources: Kansas Corporation Commission, News Release, November 6, 2025 (2025); Renewable Energy World (Kansas Reflector), New Kansas rules set guidelines for data centers, big power users to protect smaller customers (2025); Missouri Public Service Commission, PSC Approves Evergy Large Load Power Service Plan with Customer Protections (2025)

• East Kentucky Power Cooperative

  KY · PJM

  ●ApprovedOct 2025

  Data Center Power tariff

  Kentucky regulators approved a data center tariff for the cooperative's members starting at 15 MW, with dedicated-resource rules above 250 MW.

  • Applies to: 15 MW and up
  • Dedicated-resource requirements above 250 MW

  Source: WKYU, Kentucky regulators approve power co-op's rates, terms for future data centers (2025)

• Entergy Louisiana

  LA · MISO · Entergy

  ●ApprovedDec 2025

  Negotiated electric service agreements; LPSC 'Lightning' fast-track directive for new generation

  Entergy Louisiana serves data centers through long negotiated contracts, and a 2025 commission directive fast-tracks new plants for loads signing 15-year agreements.

  • Electric service agreement of at least 15 years to use the fast track
  • Letter from the Louisiana Economic Development secretary
  • Minimum bills and termination fees in Entergy's agreements

  Sources: Louisiana Illuminator, Louisiana creates fast track to approve power plants for data centers, big electricity users (2025); KPLC, La. regulators approve Entergy power plants for Meta's AI data center (2025); Entergy, Data centers and Entergy: Fair Share Plus (2026)

• Consumers Energy

  MI · MISO · CMS Energy

  ●ApprovedNov 2025

  Large data center terms of service (Case U-21859)

  Michigan regulators approved Consumers Energy terms requiring data centers of 100 MW or more to sign 15-year contracts with an 80% minimum bill.

  • Applies to: 100 MW+, or 100 MW aggregated across sites of 20 MW+ under common ownership
  • 15-year minimum contract
  • Pays at least 80% of contracted demand
  • Ramp period of up to five years
  • $100,000 project proposal fee
  • Collateral equal to half the exit fee, as cash or letter of credit

  Sources: Michigan Public Service Commission, MPSC approves terms of service between Consumers Energy and data centers (2025); Varnum LLP, MPSC Approves Consumers Energy Tariff for Large Data Centers (2025)

• DTE Electric

  MI · MISO · DTE Energy

  ◌In reviewDec 2025

  Very large load tariff (Case U-22061); Saline Township special contracts approved

  Michigan approved DTE's special contracts for a 1,383 MW campus and ordered a general very-large-load tariff, which was still in review.

  • Approved special contracts: 19-year minimum term
  • Approved special contracts: pays at least 80% of contracted demand
  • Termination payment of up to 10 years of minimum bills
  • Data center load reduced before other customers in an emergency

  Sources: Michigan Public Service Commission, MPSC approves DTE Electric energy contracts for data center (2025); T&D World, Michigan Regulators Approve DTE Data Center Power Contracts with Added Ratepayer Protections (2025); Earthjustice, Michigan's Public Service Commission Grapples with AI Data Center Load (2026)

• Xcel Energy (Northern States Power Co.-Minnesota)

  MN · MISO · Xcel Energy

  ●ApprovedMay 2026

  Large Load Tariff

  Minnesota regulators approved Xcel's large load tariff with 15-year contracts, an exit charge and a separate customer class for very large users.

  • 15-year minimum contract
  • Exit charge equal to 80% of demand charges
  • Separate rate class for large customers
  • Incremental Cost Test to show other customers are not charged more

  Source: Fresh Energy, Regulatory Update: Commission approves Xcel Energy's large load tariff (2026)

• Ameren Missouri

  MO · MISO · Ameren

  ●ApprovedNov 2025

  Large Load Rate Plan (Case ET-2025-0184)

  Missouri regulators approved Ameren's large-load rates, requiring big users to pay most of their contracted demand under long contracts with collateral.

  • Applies to: Forecast monthly peak of 75 MW or more
  • Pays at least 80% of contracted demand each month
  • 12-year minimum contract plus optional five-year ramp
  • Collateral equal to two years of minimum bills
  • Exit fee if load leaves early
  • Two years' notice to end or reduce contracted load

  Sources: St. Louis Public Radio, Missouri utility regulators approve Ameren rates for data centers (2025); Missouri Public Service Commission, Large Load Tariff Fact Sheet, April 2026 (2026)

• Duke Energy Carolinas and Duke Energy Progress

  NC, SC · Non-RTO Southeast · Duke Energy

  ◐Settlement filedOct 2026

  Large load tariff (North Carolina rate cases E-7 Sub 1329 and E-2 Sub 1380)

  Duke filed a North Carolina settlement with major tech buyers and the Public Staff making a large-load tariff with minimum bills mandatory, pending commission approval.

  • Applies to: Above 50 MW (June 2026 proposal)
  • Pays at least 75% of contracted capacity (as proposed)
  • 10- to 15-year terms (as proposed)
  • Mandatory for high-use large customers under the settlement
  • Replaces confidential one-off agreements

  Sources: WUNC, Duke Energy comes to an agreement on long-sought large-load tariff for data centers in North Carolina (2026); Southern Environmental Law Center, Duke Energy LLT Settlement (filed October 6, 2026) (2026); Canary Media, Duke Energy proposes special rules for data centers in North Carolina (2026); Public Service Commission of South Carolina, Public Information Notice, Docket No. 2026-138-E (2026)

• Public Service Company of New Mexico (PNM)

  NM · Non-RTO West · TXNM Energy

  –No specific rule foundJul 2026

  PNM told New Mexico lawmakers in mid-2026 it planned to file a large-load tariff with minimum revenue requirements and exit fees.

  • Stated plan: minimum revenue requirements
  • Stated plan: exit fees and other protections for residential customers

  Sources: Source NM, Energy leaders tell New Mexico lawmakers large users like data centers could help modernize grid (2026); New Mexico Public Regulation Commission (legislative handout), PRC: Data Centers and Large Load Energy Use (2026)

• NV Energy

  NV · Non-RTO West · Berkshire Hathaway Energy

  ◌In reviewMay 2026

  Large Load Electric Service Agreement (LLESA)

  NV Energy proposes individual long-term contracts for very large customers, with minimum payments and financial security, each needing state approval.

  • Applies to: Typically above 25 MW and needing new generation or transmission
  • Long-term energy commitments
  • Minimum usage payments
  • Financial security from the customer
  • Each agreement reviewed and approved by the Nevada PUC

  Sources: NV Energy, Large Load Electric Service Agreement (LLESA) Fact Sheet (2026); New Project Media, NV Energy seeks large-load approvals for AWS, Prologis, Novva, and Fleet data centers (2026); Latitude Media, The Clean Transition Tariff won approval in Nevada. What's next for Fervo? (2025)

• AEP Ohio

  OH · PJM · AEP

  ●ApprovedJul 2025

  Data Center Tariff

  Ohio regulators require new AEP Ohio data centers above 25 MW to pay for at least 85% of the power they reserve for up to 12 years.

  • Applies to: New data centers above 25 MW
  • Pays at least 85% of subscribed demand
  • Up to 12-year commitment, including up to a four-year ramp
  • Exit fee if the customer cancels
  • Must show financial viability or post collateral

  Sources: POWER Magazine, Regulator Approves AEP Ohio's Landmark Data Center Tariff (2025); Renewable Energy World, Ohio utility regulators approve AEP's contested data center tariff proposal (2025); AEP Ohio, Data Center Tariff (n.d.); New Project Media, POLICY: AEP Ohio touts 'right-sized load' as data center pipeline shrinks further under new tariff (2026)

• Oklahoma Gas and Electric (OG&E)

  OK · SPP · OGE Energy

  ◌In reviewJun 2026

  Proposed large-load tariff

  OG&E filed a large-load tariff for new loads of 75 MW or more, with minimum bills, exit fees and collateral; the commission review is ongoing.

  • Applies to: New loads of 75 MW+; existing customers adding 75 MW or exceeding 125 MW
  • Billing minimums
  • Early termination and capacity reduction fees
  • Financial collateral
  • 15-year term with up to five-year ramp
  • Customer pays its own grid connection costs

  Sources: OG&E, OG&E press release (June 2026) (2026); T&D World, OG&E Floats Large-Load Tariff to Protect Customers from Data Center Demands (2026); KGOU, OG&E proposes new data center agreement intended to prevent residential utility cost spikes (2026)

• Public Service Company of Oklahoma (PSO)

  OK · SPP · AEP

  ◌In reviewMay 2026

  Large-load tariff

  PSO filed a large-load tariff with Oklahoma regulators before the state's 2026 data center ratepayer law was signed.

  • Large customers such as data centers cover the costs of connecting to the grid

  Source: KGOU, Stitt signs bill to prevent higher utility costs from data centers into law (2026)

• Pacific Power (PacifiCorp, Oregon)

  OR · Non-RTO West · PacifiCorp (Berkshire Hathaway Energy)

  ◐Settlement filedSep 2026

  POWER Act data center tariff (Oregon PUC docket UE 463)

  Pacific Power reached a settlement that would charge new Oregon data centers the full cost of the new supply and grid built for them.

  • Applies to: Over 20 MW (POWER Act definition)
  • Costs of new energy projects and infrastructure needed for data centers assigned directly to data center operators
  • Separate customer class with contracts of 10 years or longer under the POWER Act

  Sources: Washington State Standard (Oregon Capital Chronicle), Pacific Power to charge new Oregon data centers for all costs associated with growing energy need (2026); Oregon Public Utility Commission, 2026 POWER Act Legislative Report (2026)

• Portland General Electric

  OR · Non-RTO West

  ●ApprovedMay 2026

  Schedule 96 (POWER Act large energy use facilities)

  Oregon approved a separate PGE rate class for loads above 20 MW, with long contracts, minimum demand charges and customer-paid upgrades.

  • Applies to: Above 20 MW
  • Contracts of at least 10 years, up to 30 years for the largest loads
  • Pays generation and transmission demand charges on at least 90% of contracted capacity
  • Customer pays 100% of distribution upgrades
  • 1 cent per kWh surcharge at 100 MW or more
  • Exit fees and a separate interconnection queue for data centers

  Sources: Oregon Public Utility Commission, Order No. 26-154 (UM 2377) (2026); Clearing Up (NewsData), Oregon Regulators Approve PGE Data Center Rate Framework (2026); Office of the Governor of Oregon, Governor Kotek Applauds PUC for Rate Increase on Data Centers (2026)

• PPL Electric Utilities

  PA · PJM · PPL Corporation

  ●ApprovedJun 2026

  Large-load customer class (rate case settlement)

  Pennsylvania regulators approved a PPL rate settlement creating a large-load class with commitments of at least 10 years and minimum usage requirements.

  • Service commitments of at least 10 years
  • Minimum usage requirements
  • Non-bypassable charge funding low-income help, about $11 million a year from 2027

  Source: Pennsylvania Public Utility Commission, PUC Issues Decision in PPL Electric Rate Proceeding (2026)

• Santee Cooper

  SC · Non-RTO Southeast

  ●ApprovedApr 2025

  Experimental large-load rate

  South Carolina's state-owned utility adopted a large-load rate for new customers of 50 MW or more with 15-year contracts and a three-year ramp.

  • Applies to: New customers of 50 MW or more
  • 15-year contract
  • Ramp to full contracted use within three years
  • Four-year experiment before a decision on making it permanent

  Source: SC Daily Gazette, SC's state-owned utility enacts higher rates for data centers, large users (2025)

• Tennessee Valley Authority (TVA)

  TN, AL, MS, KY, GA, NC, VA · Non-RTO Southeast

  ●ApprovedAug 2026

  Data center rate class with capacity commitment charge

  TVA's board created a wholesale data center rate class, effective October 1, 2026, with a capacity commitment charge for new loads above 5 MW.

  • Applies to: New or expanding data centers above 5 MW
  • Capacity commitment charge of about $1.5 million per MW, paid over three to five years
  • About 10% average bill impact, phased in over three fiscal years
  • TVA board approval needed above 100 MW
  • TVA reviews local power company contracts above 5 MW

  Sources: WSMV, TVA approves 10% rate spike for data centers to protect household rate payers (2026); 256 Today, TVA board approves higher power rates for data centers (2026); Yahoo News, TVA keeps an eye on data center proposals (n.d.)

• CenterPoint Energy Houston Electric

  TX · ERCOT · CenterPoint Energy

  ●ApprovedSep 2026

  PUCT large-load interconnection rule (16 TAC §25.194) under Senate Bill 6

  Large loads in the Houston area follow the statewide Texas rule on site control, study charges and financial security, plus CenterPoint's own load data request.

  • Applies to: 75 MW or more at a single ERCOT site
  • Posts $50,000 per MW of requested capacity as security before interconnection studies
  • Proof of site control and a study charge
  • Utility load interconnection data request form required for study

  Sources: White & Case, PUCT sets financial commitments for data center interconnection as governor pauses permit approvals (2026); CenterPoint Energy Houston Electric, Load Interconnection Data Request Form (n.d.)

• Oncor Electric Delivery

  TX · ERCOT · Sempra

  ●ApprovedSep 2026

  PUCT large-load interconnection rule (16 TAC §25.194) under Senate Bill 6

  Large loads in Oncor's area follow the statewide Texas rule, which requires site control and $50,000 per MW in security before studies start.

  • Applies to: 75 MW or more at a single ERCOT site
  • Posts $50,000 per MW of requested capacity as security before interconnection studies
  • Proof of site control and a study charge
  • Must disclose on-site backup generation
  • Noncritical loads must be able to curtail during emergencies

  Sources: White & Case, PUCT sets financial commitments for data center interconnection as governor pauses permit approvals (2026); Oncor Electric Delivery, Oncor Reports Second Quarter 2026 Results (2026)

• Rocky Mountain Power (Utah)

  UT · Non-RTO West · PacifiCorp (Berkshire Hathaway Energy)

  ●ApprovedApr 2026

  Large-load service contracts under SB 132 and Utah rule R746-318

  In Utah, Rocky Mountain Power serves loads of 100 MW or more by individual contract; the first one was approved in April 2026.

  • Applies to: 100 MW+ within five years
  • Each large load served by an individual contract approved by the Utah PSC
  • Utility has 90 days to evaluate a request
  • Customer may seek its own supply if the utility cannot serve without major investment
  • Hyperscale loads typically take service at 46 kV or higher through a customer-owned substation

  Sources: Public Service Commission of Utah, Order Approving Settlement, Docket No. 26-035-05 (2026); Latitude Media, Utah is taking a different approach to new data center load (2025); Public Service Commission of Utah, Notice, Dockets 25-R318-01 and 24-035-43 (2026)

• Dominion Energy Virginia

  VA · PJM · Dominion Energy

  ●ApprovedNov 2025

  Rate Schedule GS-5 (large-load rate class)

  Virginia regulators created a separate rate class for Dominion customers of 25 MW or more, with 14-year minimum payment commitments starting in 2027.

  • Applies to: 25 MW or more of demand
  • 14-year contract commitment
  • Pays at least 85% of contracted transmission and distribution demand
  • Pays at least 60% of contracted generation demand
  • Early-termination fees
  • Takes effect January 1, 2027

  Sources: Loudoun Now, SCC Approves New Data Center Rate Class for Dominion (2025); Virginia Mercury, SCC approves Chesterfield gas plant and Dominion rate hike, creates new rate class for data centers (2025); Virginia Mercury, SCC orders Dominion to develop tariff to assign more transmission costs to data centers (2026); Data Center Dynamics, Dominion files large load connection queue plan with state regulators (2026)

• Puget Sound Energy

  WA · Non-RTO West · Puget Energy

  –No specific rule foundApr 2026

  No PSE large-load tariff found; Washington regulators opened a statewide inquiry in 2026 on how utilities should serve large loads like data centers.

  Sources: Washington Utilities and Transportation Commission, UTC to host technical conference on large energy loads on April 27 (2026); Washington Utilities and Transportation Commission, Public invited to join UTC workshop on emerging large electric loads (2026)

• We Energies

  WI · MISO · WEC Energy Group

  ●ApprovedApr 2026

  Very Large Customer (VLC) and Bespoke Resources tariffs

  Wisconsin regulators approved a modified We Energies tariff making customers of 100 MW or more pay the full cost of resources built for them.

  • Applies to: 100 MW or more
  • 15-year minimum initial contract
  • Customer pays 100% of the costs of resources built for it
  • Reporting requirements on the tariff and individual agreements

  Sources: Clean Wisconsin (via Urban Milwaukee), State regulators make substantial modifications to We Energies AI data center tariff plan (2026); Data Center Knowledge, Wisconsin's Data Center Tariff Signals a New Regulatory Baseline (2026)

• Appalachian Power

  WV · PJM · AEP

  ◐Settlement filed

  Large-load service terms (West Virginia PSC case)

  Appalachian Power, Google and manufacturers settled on West Virginia large-load terms of 100 MW minimum, 12 years and 80% minimum purchase, pending regulator approval.

  • Applies to: 100 MW+ at a single site
  • 12-year minimum initial contract
  • Buys at least 80% of expected power use

  Sources: West Virginia Public Broadcasting, Data Center Deal Struck Between Appalachian Power, Google (n.d.); West Virginia Public Broadcasting, Compromise proposed in PSC case involving data centers (n.d.)