Data Center Electric Rates by Utility
Large-Load Tariffs, Decision Dates and Household Bill Impacts in 45 States
105 utility and commission filings on how data centers and other very large power users pay for electricity, with where each one stands, what gets decided next, and what each says about household bills.
See What Gets Decided NextUpdated October 29, 2026. Full dataset available as a CSV download.
Utilities, regulators and legislatures in 45 states have filed, adopted or opened proceedings on special electric rates for data centers and other very large power users. This tracker lists 105 of those filings in one place: the docket number where one is public, where each one stands, the next scheduled decision, what the commission or utility has said it means for a household bill, and the terms intended to keep large customers' costs from shifting to other customers. It is compiled by Metro Colo Advisory from commission orders, utility filings and earnings disclosures, EIA data, and news coverage of commission documents, as part of our data center consulting work on power, site and cost questions.
These rules also shape what it costs to run a data center, since power is one of its largest operating costs. Our data center cost breakdown shows how power pricing flows through to what space costs, and our guides to powered land and powered shell data centers cover how confirmed utility capacity affects site value. Companies that would rather not sign a utility contract directly often lease finished capacity through wholesale colocation.
Updated October 29, 2026. Free to use with credit to Metro Colo Advisory. Download the full dataset (CSV).
What Gets Decided Next: The Calendar Through Early 2027
These are the scheduled votes, deadlines and effective dates in the dataset between now and the end of the first quarter of 2027. Docket numbers are listed so each can be looked up on the commission's own site.
BPU stakeholder meeting on large data center tariffs under the Data Center Fair Share Act; written comments due Nov. 13.Docket: EO26080463
PUCT expects a final decision on how much of transmission costs large loads must pay.Docket: Project No. 58000
Public Service Commission scheduled to consider Entergy Louisiana's plan to serve the Meta Richland Parish expansion, after a staff settlement and an Oct. 7 to 9 hearing (as reported).Docket: U-37882
PUCO decision due on the AES Ohio rate case, which creates a data center rate class.Docket: 25-0958-EL-AIR
Deadline for a Corporation Commission vote on the APS rate case, including rates for extra-large users.Docket: E-01345A-25-0105
Deadline for a PSC staff technical conference on large-load interconnection and cost allocation.Docket: 26-E-0045
Dominion's new GS-5 rate class for high-load customers takes effect, along with the second step of the approved residential increase (+$2.36 a month at 1,000 kWh).Docket: PUR-2025-00058
SB 57 findings due on whether new data center load shifts costs to other customers.Docket: R.26-04-009
Data Center Advisory Council final report and any proposed legislation due.Docket: 2026-00142 (related PUC inquiry)
Approval date Xcel Energy requested for its new large-load tariff (requested, not scheduled).Docket: 4220-TE-119
Deadline for a PSC staff white paper recommending a path forward on large-load integration.Docket: 26-E-0045
Alliant expects a decision on Wisconsin Power and Light's large-load tariff.Docket: 6680-TE-119
What the Filings Say About Household Bills
23 of the 105 filings include a stated figure or claim about residential bills. Some are increases approved by a commission, some are a utility's own estimate of savings from new large customers, and some are figures reported from commission documents. The table shows each one as stated, with who said it. Most filings do not state a household figure at all. Where the filing is a general rate case, the figure is for the whole case, not the data center portion alone.
| State | Utility and filing | Household bill figure, as stated |
|---|---|---|
| Virginia | Dominion Energy Virginia (Virginia Electric and Power Co.)general rate case with new large-load rate class; PUR-2025-00058 | +$11.24/month (7.5%) in 2026 and an additional +$2.36/month (1.5%) in 2027 for typical residential customer using 1,000 kWh/month (SCC final order) (whole rate case, not the data center portion alone) |
| Virginia | Dominion Energy Virginia (Virginia Electric and Power Co.)rider proceeding allocating transmission costs to large loads; PUR-2026-00056 | +$0.94/month for typical residential customer, down from $2.90/month proposed (Rider T1 final order) |
| West Virginia | Monongahela Power and Potomac Edison (West Virginia)generation certificate and surcharge tied to data center load | Mon Power expects surcharge to raise residential rates about 2.3% on average (as reported) |
| Ohio | AES Ohio (Dayton Power and Light)general rate case creating data center rate class; 25-0958-EL-AIR | Pre-settlement figures (whole rate case): typical 1,000 kWh/month customer +1.17% in 2027, +1.49% in 2028, +0.96% in 2029 (PUCO staff testimony as reported); AES Ohio application proposed +$6.54 (3.5%) 2027, +$4.93 (2.5%) 2028, +$2.32 (1.2%) 2029 (OCC). PUCO will rule on the July 2026 stipulation. |
| Pennsylvania | PPL Electric Utilitiesgeneral rate case with large-load tariff; R-2025-3057164 | Total monthly bill for a 918 kWh residential customer projected to rise from $177.01 to about $184.49 (PUC decision), effective for service on and after 2026-07-01 (whole rate case, not the data center portion alone) |
| North Carolina | Duke Energy Carolinasgeneral rate case | As proposed, before the settlement (whole rate case): $280 to $355 more per year in 2028 for a household using 1,000 kWh a month (Canary Media) |
| Kentucky | Louisville Gas and Electric and Kentucky Utilitiesgeneral rate case with dedicated large-load tariff; 2025-00113 (KU); 2025-00114 (LG&E) | KU average increase of $9 a month; LG&E bills up $5 a month (approved settlement) (whole rate case, not the data center portion alone) |
| Indiana | NIPSCO and NIPSCO Generation (GenCo)special contract; Cause No. 46322 | Utility estimate: about $1 billion in savings for other retail customers via bill credits over the 15-year term; roughly $7 a month residential savings |
| Indiana | AES Indianageneral rate case (rehearing) | Original request would have raised bills more than $17 per month; approved settlement raises them just over $9 per month (whole rate case, not the data center portion alone) |
| Michigan | Consumers Energylarge-load tariff; U-21859 | Company rule of thumb: approximately $7.50 per month of bill benefit with every gigawatt of new large load (CMS Q2 2026 call) |
| Louisiana | Entergy Louisianaspecial contract and resource certification; U-37882 (as reported) | Not stated per bill; Entergy says structured to save customers over $2 billion over the life of the 20-year contract |
| Mississippi | Entergy Mississippispecial contract | Entergy: data center deals (including Amazon) will save Mississippi customers more than $2 billion over two decades; residential rates projected 16% lower by 2030 than otherwise (utility claim) |
| Arkansas | Entergy Arkansasspecial contract | Nearly $6 a month for ratepayers over 20 years to fund the part of the $1.6 billion project not covered by Google's $526 million payment (Action News 5, citing PSC documents). Entergy says its second-phase Google agreement will save other customers at least $500 million. |
| Arkansas | Entergy Arkansasrider update | Rider increase about $5.77/month (about 4.17%) for 1,000 kWh, offset by about $1.55/month nuclear PTC decrease, net about $4.22/month (about 3%); effective with June billings |
| Arkansas | Entergy Arkansasspecial contract (to be filed) | Entergy: at least $500 million in new customer savings over 20 years starting 2028; no bill increase tied to the project |
| Oklahoma | Oklahoma Gas and Electric (OG&E)large-load tariff; PUD2026-000046 | Estimated residential benefit of about $6.84 per month when Google load fully ramped |
| North Dakota | Montana-Dakota Utilitieslarge-load tariff; PU-22-337 | Existing customers could save about $250 per year when Applied Digital Ellendale fully built out |
| Arizona | Arizona Public Service (APS)general rate case (large-load class); E-01345A-25-0105 | APS request: about 14% overall, about $20 added to the average monthly bill; data centers up to 45% (azfamily) (whole rate case, not the data center portion alone) |
| Arizona | Tucson Electric Power (TEP)special contract; E-01933A-25-0187 | TEP estimates about $13 per month savings for a typical residential customer from 300 MW of load growth |
| California | Pacific Gas and Electriclarge-load tariff; A.24-11-007 | PG&E estimates 1 to 2 percent savings on customer bills for every 1,000 MW of new data center demand |
| Kentucky | Kentucky Powerspecial contract | $100 million in winter bill credits funded by TeraWulf for residential customers over the first 10 years; approximately $25 per month for a typical residential customer during the winter heating season, beginning in 2029 |
| Louisiana | Cleco Powerspecial contract | Cleco says the project is projected to reduce monthly rider-related charges for residential customers (utility claim, no figures given) |
| Arizona | SRP (Salt River Project)board-approved price plan | Average residential customer using 1,117 kWh a month will see a 3.5% increase, or $5.61 per month (whole price process, not data-center specific) |
"Utility estimate" and "utility claim" figures are the company's own projections and have not been tested by a commission unless noted. Source links for every figure are in the CSV.
How Big the Requests Are Next to the Grids That Would Serve Them
Utilities report data center demand in different ways: signed contracts, agreements in negotiation, or every request in the queue. Requests are not demand. Utilities say some are duplicates or speculative, and some will not be built, so a pipeline can exceed a utility's entire peak load. The comparison below puts four reported figures next to a reference point for that system or state so the scale is readable. Each figure keeps the utility's own term.
Navy: figure as reported by the utility or state. Gold: reference point. Reference sources: utility disclosures, NYISO, and EIA State Electricity Profiles (2024).
For regional context, two of the largest grid operators set new records this summer: ERCOT reached 91,134 MW on July 22, 2026 (ERCOT, preliminary) and PJM about 168,000 MW on July 2, 2026 (PJM preliminary estimate, which adds back demand response). AEP Texas alone reports executed letters of agreement for about 49,000 MW of new load by 2031, a figure that includes loads that are not data centers.
The Protections Built Into These Tariffs
Most new large-load tariffs are written to keep a data center's costs on the data center if it uses less power than promised or leaves early. 56 filings in the dataset describe adopted or proposed terms for large customers (inquiries that only list topics are not counted). Of those:
Minimum payments
29 filingsCustomer pays a set share of contracted demand (often 60% to 85%) whether it uses the power or not.
Long contracts
26 filingsTerms commonly run 10 to 20 years, often with a ramp period at the start.
Collateral or deposits
23 filingsLetters of credit, cash or deposits sized to the costs other customers would otherwise carry.
Exit fees
19 filingsLeaving early means paying remaining minimum charges or the unrecovered cost of upgrades.
Counts are filings whose stated terms mention each protection; one filing can include several. Full terms for each filing are in the CSV.
Whether these terms are enough is argued in many of these dockets. Consumer advocates in several states have challenged settlements as too lenient, and some data center customers argue minimum payments are too high. The tracker records what was filed and decided, not who is right. For a national list of large-load tariffs, the Smart Electric Power Alliance also keeps a tracker (SEPA).
All 105 Filings by State and Utility
Pick a state to see only its filings. Docket numbers are shown as plain text; source links for every row are in the downloadable CSV.
| State | Utility and filing | Docket | Status | Next date |
|---|---|---|---|---|
| Alabama | Alabama PowerAPSC review process for large-load data center contracts under Act 2026-610 (SB 270) | 33709Alabama Public Service Commission | Decidedapproved (rules adopted) | None scheduled |
| Arizona | Arizona Public Service (APS)2025 rate case including changes to Extra High Load Factor (XHLF) rates | E-01345A-25-0105ACC | Pendingpending | 2026-12-31 deadline for Commission vote at Open Meeting (ALJ recommended order expected by late November 2026) |
| Arizona | SRP (Salt River Project)2024 price process: E-67 large commercial and industrial price plan change | not statedSRP Board of Directors | Decidedapproved | None scheduled |
| Arizona | Tucson Electric Power (TEP)Energy Supply Agreement with Beale Infrastructure (Project Blue data center) | E-01933A-25-0187ACC | Decidedapproved (rehearing denied; Attorney General appeal planned) | None scheduled |
| Arkansas | Entergy ArkansasGoogle West Memphis data center special rate contract | not statedAPSC | Decidedapproved | None scheduled |
| Arkansas | Entergy ArkansasGenerating Arkansas Jobs Act strategic investment rider annual update (Ironwood, Jefferson, Cypress Solar and Battery; serving Google and Avaio data centers) | not statedAPSC | Decidedapproved | None scheduled |
| Arkansas | Entergy ArkansasGoogle West Memphis phase two (batteries, 440 MW solar PPA, Galet substation and 230 kV lines) | not statedAPSC | Pendingproposed (announced 2026-10-19; to be submitted to APSC) | None scheduled |
| California | California investor-owned utilities (statewide)SB 57 directs CPUC to investigate cost shifts from new data center loads | R.26-04-009CPUC | Open proceedingpending (investigation) | 2027-01-01 findings due |
| California | Pacific Gas and ElectricElectric Rule 30 (transmission-level service for large loads) | A.24-11-007CPUC | Decidedapproved on an interim basis | None scheduled |
| California | SCE (Southern California Edison)Order Instituting Rulemaking on California Advanced Electric Rate Design (data center and large load rate design) | R.26-04-009California Public Utilities Commission | Pendingpending | 2027-01-01 SB 57 assessment of data center cost impacts due (coordinated with this OIR) |
| California | SDG&E (San Diego Gas & Electric)Order Instituting Rulemaking on California Advanced Electric Rate Design (data center and large load rate design) | R.26-04-009California Public Utilities Commission | Pendingpending | 2027-01-01 SB 57 assessment of data center cost impacts due (coordinated with this OIR) |
| Colorado | Black Hills Colorado ElectricEconomic development tariff for Large Power Service customers | 25A-0500ECO PUC | Decidedapproved | None scheduled |
| Colorado | Public Service Company of ColoradoLarge Load Tariff (new or expanded loads 50 MW or more), with Clean Transition and Speed-to-Market options | 26AL-0137ECO PUC | Pendingpending | None scheduled |
| Delaware | Delmarva Power & Light (Delaware)Large load tariff, General Service Large Load (GS-LL) | 25-0826Delaware PSC | Pendingpending; paused after HB 233 signed 2026-08-26, Delmarva to refile within 180 days after PSC finalizes regulations | None scheduled |
| Florida | Duke Energy FloridaPetition for limited proceeding to approve Large Load Customer Policy, Large Load Customer Agreement and revised CIAC tariffs (SB 484) | 20260064-EIFlorida Public Service Commission | Pendingpending (evidentiary hearing held; post-hearing briefs; no order yet) | None scheduled |
| Florida | Duke Energy FloridaProposed LLC-1 rate schedule, Large Load Customer Policy and Agreement (tariff revisions) | 20250113-EIFlorida Public Service Commission | Pendingsuspended pending staff review | None scheduled |
| Florida | Florida Power & LightLLCS-1 and LLCS-2 large load contract service tariffs in 2026-2029 rate case | 20250011-EIFlorida Public Service Commission | Decidedapproved (four-year rate agreement) | None scheduled |
| Florida | Florida Power & LightSB 484 large load compliance filing | not statedFlorida Public Service Commission | Pendingpending PSC review | None scheduled |
| Florida | Tampa Electric (TECO)SB 484 large load customer tariff proposal (LLCS-1 class) | not statedFlorida Public Service Commission | Pendingpending | None scheduled |
| Georgia | Georgia PowerPSC rule on large load customers (100 MW+) terms and contract review | not stated (PSC says rule arose from interim IRP Docket 55378)Georgia Public Service Commission | Decidedapproved | None scheduled |
| Georgia | Georgia PowerCertification of nearly 10,000 MW of new resources largely for data centers | not statedGeorgia Public Service Commission | Decidedapproved; reconsideration effort blocked (2026-03-17) | None scheduled |
| Idaho | Idaho PowerSchedule 20, speculative high-density loads | IPC-E-21-37ID PUC | Decidedapproved (effective) | None scheduled |
| Illinois | Commonwealth Edison (ComEd)Revised large-load deposit tariff | P2025-0677Illinois Commerce Commission (ICC) | Decidedapproved | None scheduled |
| Illinois | Commonwealth Edison (ComEd)ICC investigation into ratepayer protections for data center (large load) costs | not statedICC | Pendingpending | None scheduled |
| Indiana | AES IndianaGoogle Monrovia data center service agreements and related upgrades | Cause No. 46394IURC | Decidedapproved (unanimous vote) | None scheduled |
| Indiana | AES IndianaBase rate case rehearing to consider Google data center and BlackRock-led acquisition | not statedIURC | Pendingrehearing granted; reopened | None scheduled |
| Indiana | Indiana Michigan PowerLarge load tariff and interconnection settlement | Cause No. 46097Indiana Utility Regulatory Commission (IURC) | Decidedapproved with modification | None scheduled |
| Indiana | NIPSCO and NIPSCO Generation (GenCo)Amazon Data Services special contract and NIPSCO-GenCo PPA | Cause No. 46322IURC | Decidedapproved | None scheduled |
| Iowa | Interstate Power and Light (Alliant Energy)Individual Customer Rate service agreements and specific ratemaking treatment (QTS Cedar Rapids) | TF-2025-0047Iowa Utilities Commission | Decidedapproved | ICR filings for a 370 MW data center and another project expected (no date given) |
| Kansas | Evergy Kansas Central / Evergy Metro (Kansas)Large Load Power Service rate plan and tariffs | 25-EKME-315-TARKCC | Decidedapproved | None scheduled |
| Kentucky | East Kentucky Power CooperativeData Center Power (DCP) tariff | 2025-00140Kentucky Public Service Commission | Decidedapproved with modifications | None scheduled |
| Kentucky | Kentucky PowerAmended TeraWulf electric service contract (Muskie Data campus, Grayson) | not statedKentucky Public Service Commission | Pendingannounced; to be filed for PSC approval | Kentucky Power to file amended contract later in 2026 (no date given) |
| Kentucky | Louisville Gas and Electric and Kentucky UtilitiesExtremely High Load Factor (EHLF) tariff in 2025 base rate cases | 2025-00113 (KU); 2025-00114 (LG&E)Kentucky Public Service Commission | Decidedapproved (rate settlement approved; EHLF described by utility as approved) | None scheduled |
| Kentucky | Louisville Gas and Electric and Kentucky UtilitiesCPCN for two 645 MW gas units for expected data center load growth | 2025-00045Kentucky Public Service Commission | Decidedapproved in part (EHLF not approved for cost recovery in this case) | None scheduled |
| Louisiana | Cleco PowerApplication for approval of Applied Digital (Delta Forge 1) contracts, interconnection, new generation and waivers under the LPSC Lightning Initiative | not statedLouisiana Public Service Commission | Pendingpending | None scheduled |
| Louisiana | Entergy LouisianaMeta Richland Parish (Hyperion) data center: three new combined cycle plants, transmission and up to 1,500 MW solar | not statedLPSC | Decidedapproved | None scheduled |
| Louisiana | Entergy LouisianaMeta (Evest LLC) Richland Parish expansion: seven gas plants, solar, batteries and 500-kV line under 20-year contract | U-37882 (as reported)LPSC | Pendingpending | 2026-12-16 LPSC scheduled to consider the plan at its Dec. 16 session, after a staff settlement and an Oct. 7 to 9 hearing (as reported) |
| Louisiana | Entergy LouisianaLarge Load High Load Factor Power Service rate | U-36959LPSC | Decidedapproved (available) | None scheduled |
| Maine | Central Maine Power and Versant PowerInquiry into data centers and large loads | 2026-00142Maine Public Utilities Commission | Open proceedingopen; comments received, PUC deciding next steps | 2027-01-29 Data Center Advisory Council final report and any proposed legislation due to Governor and Legislature |
| Maryland | BGE, Pepco and Delmarva (Maryland)Large load rate schedules under Next Generation Energy Act and 2026 Utility RELIEF Act | PC72 (as listed by EEI)Maryland PSC | Pendingfiled, pending | None scheduled |
| Maryland | Potomac Edison (Maryland)Large load rate schedule under Next Generation Energy Act and 2026 Utility RELIEF Act | PC72 (as listed by EEI)Maryland PSC | Pendingfiled, pending | None scheduled |
| Massachusetts | Eversource (NSTAR Electric), National Grid (Massachusetts Electric and Nantucket Electric), Unitil (Fitchburg Gas and Electric)DPU directive to electric distribution companies regarding data center interconnection requests | not statedMassachusetts Department of Public Utilities | Pendingutility informational filings were due 2026-10-23; directive issued 2026-09-24 | None scheduled |
| Michigan | Consumers EnergyLarge load / data center tariff provisions | U-21859Michigan Public Service Commission (MPSC) | Decidedapproved | None scheduled |
| Michigan | DTE ElectricSpecial contracts with Green Chile Ventures (Oracle) for Saline Township data center | U-21990MPSC | Decidedconditionally approved; under appeal at Michigan Court of Appeals | None scheduled |
| Michigan | DTE ElectricSpecial contracts with Google for Van Buren Township data center | U-22058MPSC | Decidedapproved | None scheduled |
| Michigan | DTE ElectricLarge load customer tariff application (required by U-21990 order) | not statedMPSC | Pendingpending | None scheduled |
| Minnesota | Minnesota PowerVery large customer tariff | 26-126Minnesota Public Utilities Commission | Pendingpending; updated tariff was due 2026-07-15 | None scheduled |
| Minnesota | Minnesota PowerElectric service agreement with Harmony Group LLC (Google) for Hermantown data center | 26-159Minnesota Public Utilities Commission | Pendingpending (comment period closed 2026-08-28; awaiting Commission agenda meeting) | None scheduled |
| Minnesota | Otter Tail PowerPetition for very large customer class and data center rate schedule | 26-211Minnesota Public Utilities Commission | Pendingpending | None scheduled |
| Minnesota | Xcel Energy (Northern States Power-Minnesota)Very large customer tariff (data centers) | 25-289Minnesota Public Utilities Commission | Open proceedingin progress (Commission defined very large customer) | None scheduled |
| Minnesota | Xcel Energy (Northern States Power-Minnesota)Electric service agreement with Echo Zone LLC (Google) for Pine Island data center | 26-170Minnesota Public Utilities Commission | Pendingpending (comment period closed 2026-09-08; awaiting Commission agenda meeting) | None scheduled |
| Mississippi | Entergy MississippiAmazon Web Services data center service agreement (under SB 2001 of 2024) | not statedMPSC | Decidedin effect | None scheduled |
| Mississippi | Mississippi PowerSpecial contract with Compass Datacenters Jan I, LLC (Lauderdale County campus) | not statedMississippi Public Service Commission | Decidedapproved | None scheduled |
| Missouri | Ameren MissouriLarge Load Customer Rate Plan (Schedule LLCS) | ET-2025-0184Missouri Public Service Commission | Decidedapproved (rehearing application filed by Consumers Council of Missouri 2025-12-03) | None scheduled |
| Missouri | Evergy Missouri Metro and Evergy Missouri WestApplication for new and modified tariffs for service to large load customers | EO-2025-0154Missouri Public Service Commission | Otherstatus not confirmed | None scheduled |
| Montana | NorthWestern EnergyLarge New Load Tariff | 2026.04.023MT PSC | Pendingpending (filed) | None scheduled |
| Multistate (OH, PA, NJ, WV, MD) | FirstEnergy transmission ownersComments proposing data centers pay directly for transmission upgrades via 15-year contracts with expansion rate | RM26-4 (accession 20260605-5169)FERC | Pendingfiled | None scheduled |
| Nebraska | Statewide public power (OPPD, NPPD and all Nebraska public power suppliers)LB 1010 large-load interconnection standards (with LB 1261 co-located generation for 1,000 MW+ loads) | LB1010; LB1261Nebraska Legislature | Decidedenacted | None scheduled |
| Nevada | NV Energy (Sierra Pacific Power)Clean Transition Tariff (Google geothermal supply) | 24-05023PUCN | Decidedapproved | None scheduled |
| New Jersey | All NJ electric distribution companies (PSE&G, JCP&L, ACE, RECO)Implementation of the Data Center Fair Share Act (P.L. 2026, c.32): Staff RFI on large data center tariffs | EO26080463New Jersey BPU | Open proceedingopen (request for information) | 2026-11-04 BPU stakeholder meeting (Zoom); written comments due 2026-11-13 |
| New Mexico | El Paso ElectricTwo new large load tariffs based on Large Power Service tariff (in rate review) | 25-00082-UTNM PRC | Pendingpending (proposed) | None scheduled |
| New Mexico | Public Service Company of New Mexico (PNM)Meta Los Lunas data center special service contracts and related resources | 25-00048-UTNM PRC | Decidedapproved | None scheduled |
| New York | All PSC-jurisdictional electric utilities (Con Edison, National Grid/Niagara Mohawk, NYSEG, RG&E, Central Hudson, O&R)Proceeding on Motion of the Commission to Address Interconnection Reforms for Large Loads (Energize NY Development) | 26-E-0045New York Public Service Commission | Open proceedingopen; SEQRA positive declaration and draft GEIS scope issued | 2026-12-31 Deadline for staff technical conference (no date set) |
| North Carolina | Duke Energy CarolinasDEC general rate case (2027 and 2028 rate years) with contested large-load cost allocation | not statedNCUC | Pendingpending (settlement with Public Staff reported; order expected) | None scheduled |
| North Carolina | Duke Energy Carolinas and Duke Energy ProgressLarge load tariff (Schedule HLF) settlement | E-7, Sub 1329; E-2, Sub 1380North Carolina Utilities Commission (NCUC) | Pendingpending (settlement filed; NCUC approval required) | None scheduled |
| North Dakota | Montana-Dakota UtilitiesHigh Density Contracted Demand Response Tariff | PU-22-337NDPSC | Decidedapproved | None scheduled |
| North Dakota | Otter Tail PowerNew very large customer class and data center rate schedule | PU-26-215NDPSC | Pendingpending (submitted) | None scheduled |
| Ohio | AEP Ohio (Ohio Power Co.)Data Center Tariff (Schedule DCT) | 24-0508-EL-ATAPUCO | Decidedapproved; appeal by Ohio Manufacturers' Association pending at Ohio Supreme Court | None scheduled |
| Ohio | AES Ohio (Dayton Power and Light)Multi-year distribution rate case with stipulated data center tariff (2027-2029) | 25-0958-EL-AIRPUCO | Pendingpending (unopposed stipulation signed 2026-07-21; evidentiary hearing held 2026-08-04) | 2026-12-18 PUCO final decision due |
| Ohio | Duke Energy OhioRate DC (Data Center Tariff) | 26-0755-EL-ATAPUCO | Pendingproposed, pending | None scheduled |
| Ohio | Ohio Edison, Cleveland Electric Illuminating, Toledo EdisonData Center Tariff (DCT), joint proposal | 26-0697-EL-ATAPUCO | Pendingfiled, pending | None scheduled |
| Oklahoma | Oklahoma Gas and Electric (OG&E)Extra Large Power and Light (XLPL) tariff | PUD2026-000046OCC | Pendingpending (proposed) | None scheduled |
| Oklahoma | Public Service Company of Oklahoma (PSO)Special terms and conditions for new large loads in Large Power and Light (LPL) tariff | PUD2025-000075OCC | Pendingpending (proposed) | None scheduled |
| Oregon | PacifiCorp (Pacific Power)Schedule 401, new customer class for large energy-use facilities | ADV 1790 / UE 463OR PUC | Pendingpending (proposed) | None scheduled |
| Oregon | Portland General ElectricNew large load rate class (POWER Act implementation) | UM 2377OR PUC | Decidedapproved with modifications | None scheduled |
| Pennsylvania | All PUC-regulated electric distribution companiesInterconnection and Tariffs for Large Load Customers: final model tariff | M-2025-3054271Pennsylvania PUC | Decidedadopted (guidance; specifics set in EDC tariff filings or rate cases) | None scheduled |
| Pennsylvania | PPL Electric Utilities2025 base rate case settlement with new large load rate class LP-6 and large load tariff provisions | R-2025-3057164Pennsylvania PUC | Decidedapproved | None scheduled |
| South Carolina | Duke Energy Carolinas and Duke Energy ProgressPetition for generic docket on new large load additions (rate schedules, service regulations, line extension, interconnection) | 2026-138-EPublic Service Commission of South Carolina | Pendingpending (written comment docket) | None scheduled |
| South Carolina | Santee CooperExperimental large load rate for data centers and other large users | not statedSantee Cooper Board of Directors (not PSC-regulated rate) | Decidedapproved (four-year trial) | None scheduled |
| South Carolina | South Carolina electric utilities (petition by Duke Energy Carolinas and Duke Energy Progress; DESC participating)Generic docket on new large load (50 MW or greater) additions | 2026-138-ESouth Carolina Public Service Commission | Open proceedingopen | None scheduled |
| South Dakota | Otter Tail PowerVery large customer class and high power compute rate schedule | EL26-021SDPUC | Pendingpending (proposed) | None scheduled |
| Tennessee | Tennessee Valley Authority (TVA)Wholesale rate structure changes creating a standard data center rate | not applicableTVA Board of Directors | Decidedapproved; in effect | None scheduled |
| Texas | AEP TexasPUCT large load interconnection standards rulemaking (SB 6) | 58481Public Utility Commission of Texas | Decidedadopted | None scheduled |
| Texas | ERCOT transmission and distribution utilities (statewide rule)Large load transmission cost responsibility rulemaking (response to Governor's 2026-06-10 letter) | Project No. 58000PUCT | Pendingpending (proposed rule) | 2026-12 PUCT expects final decision on the rulemaking |
| Texas | ERCOT transmission and distribution utilities (statewide rule; Oncor, CenterPoint Houston, AEP Texas, TNMP and others)Large load interconnection standards rule (16 TAC 25.194), implementing SB 6 | Project No. 58481PUCT | Decidedapproved (adopted) | None scheduled |
| Texas | El Paso ElectricSchedule 27 High Load Factor Large Power (HLFLP) | 59611PUCT | Pendingpending (filed) | None scheduled |
| Texas | El Paso ElectricBase rate review with changes to address large load customers | 57568PUCT | Decidedapproved | None scheduled |
| Texas | Southwestern Electric Power Co. (SWEPCO)ES-LL Contract (large load service) | 58796PUCT | Pendingpending (filed) | None scheduled |
| Texas | Southwestern Public Service (SPS)Large load tariff proposal | 60332PUCT | Pendingpending (submitted) | None scheduled |
| Texas | Texas-New Mexico Power (TNMP)New Primary Service Substation rate class under Primary IDR rate (in rate review) | 58964PUCT | Decidedapproved | None scheduled |
| Utah | Rocky Mountain PowerUtah PSC investigation into flexible large-load tariff (following SB 132) | 25-R318-01; 24-035-43UT PSC | Decidednew rule R746-318 in effect; amendments under review; flexible tariff guidance expected before end of 2026 | None scheduled |
| Vermont | Green Mountain Power and other Vermont distribution utilitiesH.727 data center regulation bill (large load service equity contract) | H.727Vermont General Assembly / Public Utility Commission | Othervetoed | None scheduled |
| Virginia | Appalachian Power (Virginia)Large Power Service rate schedule revisions for new large additions | PUR-2025-00057Virginia SCC | Decidedapproved | None scheduled |
| Virginia | Dominion Energy Virginia (Virginia Electric and Power Co.)2025 Biennial Review; new Rate Schedule GS-5 for high-load customers | PUR-2025-00058Virginia SCC | Decidedapproved | 2027-01-01 GS-5 rate schedule effective; contract and collateral terms apply to ESAs signed on or after this date |
| Virginia | Dominion Energy Virginia (Virginia Electric and Power Co.)Rider T1 annual transmission rate case; directive to file line extension policy with mandatory CIAC for direct-connect facilities | PUR-2026-00056Virginia SCC | Decidedapproved (final order); new line extension policy docket to follow | 2026-10-29 Compliance filing due on amended line extension (CIAC) policy, 90 days from 2026-07-31 order; new docket expected |
| Washington | Chelan County PUDMicrosoft power contract and Rate Schedule 4 (Large Loads) and 36 (Small Data Centers) updates | not statedChelan PUD Board of Commissioners | Decidedcontract approved | None scheduled |
| Washington | Washington UTC (all investor-owned electric utilities)Large energy load interconnection inquiry and policy statement | UE-260162Washington Utilities and Transportation Commission | Pendingpending | Policy statement expected at end of process (six to eight months from April 2026) |
| West Virginia | Appalachian Power and Wheeling Power (West Virginia)Large Capacity Power (LCP) and Industrial Power (IP) tariff revisions for large loads | 24-0611-E-T-PWWest Virginia PSC | Decidedapproved | None scheduled |
| West Virginia | Monongahela Power and Potomac Edison (West Virginia)Maidsville Energy Center CPCN (1,200 MW gas plus 70 MW solar) with proposed surcharge; possible fully bundled data center service agreement | not stated (PSC case activity IDs 656953 and 663675)West Virginia PSC | Pendingpending | None scheduled |
| Wisconsin | Madison Gas and Electric (MGE)Very Large Customer (VLC) Service tariff and Bespoke Resources Service tariff | 3270-TE-124Public Service Commission of Wisconsin | Pendingproposed, pending | None scheduled |
| Wisconsin | We Energies (Wisconsin Electric Power Co.)Very Large Customer (VLC) Tariff and Bespoke Resources Tariff | 6630-TE-113Public Service Commission of Wisconsin | Decidedapproved with modifications; rehearing petition filed; circuit court appeal pending | None scheduled |
| Wisconsin | Wisconsin Power and Light (Alliant Energy)Electric Service Agreement under Individual Contract Rate tariff for Meta Beaver Dam data center | 6680-TE-115Public Service Commission of Wisconsin | Decidedapproved with modifications | None scheduled |
| Wisconsin | Wisconsin Power and Light (Alliant Energy)Schedule CP-3 Large Load Power Service Tariff with electric service and customer reimbursement agreements | 6680-TE-119Public Service Commission of Wisconsin | Pendingfiled, pending | 2027-Q1 Alliant anticipated decision |
| Wisconsin | Xcel Energy Wisconsin (Northern States Power Co.-Wisconsin)Large Load Tariff (Very Large General Time of Day Service) | 4220-TE-119Public Service Commission of Wisconsin | Pendingfiled, pending | 2027-02-01 Utility requested approval by 2027-02-01 (not scheduled) |
| Wyoming | Black Hills Energy (Cheyenne Light, Fuel and Power)Large Power Contract Service (LPCS) | Record No. 14242WY PSC | Decidedapproved | None scheduled |
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How This Tracker Was Built
What is included
Filings before state commissions (and a few legislatures, public power boards and FERC) that set or change rates, contract terms or interconnection rules specifically for data centers or other very large loads, plus special contracts with named data center customers. Ordinary rate cases are included only when they create a large-load class or tariff.
Where the facts come from
Commission orders and dockets first, then utility filings and earnings disclosures, then news reports that quote commission documents. Each row carries its source links and a confidence rating (high when confirmed in a primary document, medium when confirmed only in secondary coverage).
How figures are stated
Bill impacts and load figures are kept in the words of whoever stated them, with the source named. We do not convert a utility's pipeline into a forecast or add up figures that use different definitions. Where a parent company reports a figure, it stays at the parent level.
Independent check
Rows were re-checked against their sources by a separate reviewer before publishing, and rows that could not be tied to a real filing were removed. Rows rated medium confidence rely on secondary coverage; the rating is in the CSV.
Who compiled it
Metro Colo Advisory advises companies on data center sites, power and colocation. The tracker reports filings as stated and takes no position on them.
Updates
The calendar and statuses are reviewed as dates pass. Corrections are welcome through the contact page; send the docket number and the document.
Frequently Asked Questions
What is a large-load tariff?
A large-load tariff is a set of rates and contract terms a utility applies to customers that use far more power than ordinary businesses, usually above a threshold between 15 MW and 150 MW. Many require long contracts, minimum monthly payments, collateral or exit fees so that the cost of serving the customer stays with that customer.
Do data centers raise residential electric bills?
It depends on the utility and the terms. In this dataset, 23 filings state a household bill figure. Some are approved increases from rate cases that also created data center rate classes, and others are utility estimates of savings from spreading fixed costs across new large customers. Figures from general rate cases cover the whole case, not the data center portion alone, and most filings do not state a household figure.
Which states have adopted data center rates?
In this dataset, 51 filings are decided, adopted or in effect, including Virginia, Ohio, Georgia, Indiana, Michigan, Missouri, Kansas, Idaho, Oregon and others. Use the state filter in the table above to see each state.
What decisions are coming through early 2027?
Scheduled items include the New Jersey BPU stakeholder meeting on Nov. 4, 2026, a Louisiana PSC session on the Entergy and Meta expansion set for Dec. 16 (as reported), the PUCO decision on AES Ohio due Dec. 18, a Texas PUCT decision on large-load transmission costs in December, an Arizona vote on the APS rate case by Dec. 31, and Virginia's GS-5 rate class taking effect Jan. 1, 2027.
Is a utility's data center pipeline the same as future demand?
No. Pipelines and queues often include duplicate, speculative or early-stage requests, and utilities define them differently. The tracker keeps each utility's own term so figures are not compared as if they mean the same thing.
Can I use this data?
Yes. The data is free to use, including in news coverage and research, with credit to Metro Colo Advisory and a link to this page. The full CSV includes source links for every row.
