KY – Duke Energy
Case: 2025-00125 Initial Filing Date: 4/17/2025 Summary: Notice of Intent to file in at least thirty days, but no more than sixty days Effective Date: Status: Pending Type: Gas
KY – Louisville Gas & Electric Company
Case: 2025-00114 Initial Filing Date: 4/4/2025 Summary: Notice of Intent to file on or after May 30, 2025 Effective Date: Status: Pending Type: Gas
KY – Louisville Gas & Electric Company
Case: 2025-00114 Initial Filing Date: 4/4/2025 Summary: Notice of Intent to file on or after May 30, 2025 Effective Date: Status: Pending Type: Electric
KY – Kentucky Utilities
Case: 2025-00113 Initial Filing Date: 4/4/2025 Summary: Notice of Intent to file on or after May 30, 2025 Effective Date: Status: Pending Type: Electric
OK – Summit Utilities Oklahoma
Case: PUD2025-000028 Initial Filing Date: 4/28/2025 Summary: Notice of Intent to file on or before August 31, 2025 Effective Date: Status: Pending Type: Gas
OH – Ohio Power
Case: 25-0392-EL-AIR Initial Filing Date: 4/10/2025 Summary: Intent to file by May 30, 2025 Effective Date: Status: Pending Type: Electric
ID – Idaho Power Company
Case: IPC-E-25-16 Initial Filing Date: 3/28/2025 Summary: Notice of Intent to file on or after May 30, 2025 Effective Date: Status: Pending Type: Electric
AR – Southwestern Electric Power Company
Case: 25-003-U Initial Filing Date: 3/28/2025 Summary: Residential 27.3% General Service 23.3% Lighting & Power Secondary 18.7% Lighting & Power Primary 11.6% Lighting & Power TOU 11.8% Total Industrial Transmission 0.6% Municipal 20.8% Private, Outdoor, & Area Lighting 35.1% Municipal Street & Public Street & Hwy Lighting 39.7% Effective Date: 1/28/2026
WI – City of Barron
Case: 380-ER-109 Initial Filing Date: 3/19/2025 Summary: 11.12% Effective Date: Status: Pending Type: Electric
WA – PacifiCorp
Case: UE-250224 Initial Filing Date: 4/1/2025 Summary: 7.9% Increase Effective Date: 1/1/2026 Status: Pending Type: Electric
VA – Virginia Electric and Power
Case: PUR-2025-00058 Initial Filing Date: 3/31/2025 Summary: 6.1% Residential in 2026 and 1.3% Residential in 2027 Effective Date: 1/1/2026 & 1/1/2027 Status: Pending Type: Electric
UT – Enbridge Gas Utah
Case: 25-057-06 Initial Filing Date: 3/14/2025 Summary: Intent to file on or after May 1, 2025 Effective Date: Status: Pending Type: Gas
PA – Philadelphia Gas Works
Case: R-2025-3053112 Initial Filing Date: 2/27/2025 Summary: 13% Residential Effective Date: 11/28/2025 Status: Pending Type: Gas
PA – Columbia Gas of PA
Case: R-2025-3053499 Initial Filing Date: 3/20/2025 Summary: 11.38% Residential, 11.99% Small Commercial, 10.59% Small Industrial Effective Date: 12/19/2025 Status: Pending Type: Gas
NV – NV Energy
Case: 25-02016 Initial Filing Date: 2/18/2025 Summary: 9% Increase Effective Date: 4/1/2026 Status: Pending Type: Electric
NH – Unitil
Case: DE 25-025 Initial Filing Date: 4/1/2025 Summary: Notice of Intent – 8.3% average increase Effective Date: Status: Pending Type: Electric
MI – Consumers Energy
Case: U-21870 Initial Filing Date: 3/28/2025 Summary: Intent to file on or after June 2, 2025 Effective Date: Status: Pending Type: Electric
KY – Farmers Rural Electric Cooperative
Case: 2025-00107 Initial Filing Date: 4/1/2025 Summary: Notice of Intent to file on or after May 5, 2025 Effective Date: Status: Pending Type: Electric
KY – Cumberland Valley Electric
Case: 2024-00388 Initial Filing Date: 3/24/2025 Summary: 3.9% Increase Effective Date: 9/23/2025 Status: Pending Type: Electric
KY – Blue Grass Energy Cooperative
Case: 2025-00103 Initial Filing Date: 4/1/2025 Summary: Notice of intent to file on or about May 1, 2025 Effective Date: Status: Pending Type: Electric
KS – Black Hills/Kansas Gas Utility Company
Case: 25-BHCG-298-RTS Initial Filing Date: 2/3/2025 Summary: 17.6% Residential, 15.1% Small Commercial, 3.3% Small Volume, -2.0% Large volume Firm, -1.4% Large Volume Interruptible, 3.7% Irrigation, 23.9% Small Commercial Transportation, 3.6% Small Volume Transportation, 1.6% Large Volume Transportation, 19.1% Irrigation Effective Date: 10/1/2025 Status: Pending Type: Gas
IN – Community Natural Gas
Case: 46209 Initial Filing Date: 3/7/2025 Summary: 14.8% Effective Date: 1/1/2026 Status: Pending Type: Gas
ID – Intermountain Gas Company
Case: INT-G-25-02 Initial Filing Date: 3/28/2025 Summary: Notice of intent on or after May 28, 2025 Effective Date: Status: Pending Type: Gas
CT – United Illuminating Company
Case: 24-10-04 Initial Filing Date: 10/1/2024 Summary: Effective Date: 11/1/2025 Status: Pending Type: Electric
WY – Frannie Deaver Utilities
Case: 30007-162-GR-25/17761 Initial Filing Date: 2/20/2025 Summary: 8% Residential, 7% Commercial, 8% Industrial Effective Date: 9/20/2025 Status: Pending Type: Gas
How to Use Historical Tariff Information when Researching Natural Gas and Electricity Utility Rates
Accurate utility rate data is crucial for organizations managing budgets, forecasting costs, and negotiating energy contracts. Understanding how rates have changed over time helps businesses make informed decisions, whether they are locking in a contract, managing energy expenses, or planning for future price fluctuations. Historical tariff information provides valuable insights into past utility rates, offering
Utility Tariff Database FAQs
1. What is a utility tariff database? A utility tariff database is a digital resource that compiles electric and natural gas tariffs from utilities and state regulators. It provides easy access to current and historical rate schedules, cost components, and pricing structures to help businesses analyze and manage energy costs effectively. 2. How can a
WI – City of Wisconsin Dells
Case: 6610-ER-107 Initial Filing Date: 2/12/2025 Summary: 17.88% increase Effective Date: Status: Pending Type: Electric
WI – City of Boscobel
Case: 650-ER-105 Initial Filing Date: 3/4/2025 Summary: 9.35% overall increase Effective Date: Status: Pending Type: Electric
VA – Southwestern Virginia Gas Company
Case: PUR-2025-00036 Initial Filing Date: 2/14/2025 Summary: Intent to file on or around March 30, 2025 Effective Date: Status: Pending Type: Gas