NIPSCO Electric Rates

Pending cases of note for Northern Indiana Public Service Company’s (NIPSCO’s) electric utility include its:

• Proposed Demand Response Program (IURC Cause No. 46391)
• Quarterly Fuel Cost Adjustments (For the latest case file, click here and enter Cause Number 38706)
• Trackers under its approved 7-year infrastructure plan (IURC Cause No. 45557)

In the most recent IURC survey of residential electric bills, NIPSCO's average residential bill ranked highest among the utilities under Commission jurisdiction.

Base rates cover most infrastructure and operating/maintenance costs while rate adjustment “trackers,” as described below, allow for more frequent rate changes for specific costs as designated by law.

Base Rates

New electric base rates for NIPSCO received IURC approval in June 2025.

Previous base rates for NIPSCO's electric utility were approved in 2023 and 2019.

Trackers

In addition to base rates, Indiana electric utilities recover and credit separate, specific costs through rate adjustment mechanisms known as "trackers." Rate adjustments via trackers are reviewed by the OUCC and approved by the IURC on a quarterly, semi-annual or annual basis.

NIPSCO uses the following trackers, which comprised approximately 9% percent of a residential customer’s typical bill as of July 2025. All filings are available by entering the cause number in the IURC's Online Services Portal.

Tracker	Recovers Costs for	Frequency	IURC Cause No.
Fuel Adjustment Clause (FAC)	Coal and other fuels	Quarterly	38706
Transmission, Distribution & Storage System Improvement Charge (TDSIC)	Projects in 7-year infrastructure plan	Semi-Annual	45557
Resource Adequacy Adjustment (RA)	Capacity resources needed for system reliability	Semi-Annual	44155
Regional Transmission Operator (RTO)	Participation in Midcontinent Independent Transmission System Operator (MISO)	Semi-Annual	44156
Federally Mandated Cost Adjustment (FMCA)	Critical infrastructure protection	Semi-Annual	44340
Generation Cost Tracker (GCT)	Schahfer Generation Project	Semi-Annual	45947
Environmental Cost Tracker (ECT)	Federally mandated compliance costs including emissions control equipment	Semi-Annual	46033
Demand Side Management (DSM)	Energy efficiency programs	Annual	43618
Green Power Rider (GPR)	Program allowing customers to voluntarily buy renewable energy credits	Annual	44198

Previous NIPSCO cases include:

• Schahfer Gas Generation proposal (Cause No. 45947)
• Gibson Solar Generation Project (Cause No. 46032)
• Fairbanks Solar Generation Project (Cause No. 46028)
• Appleseed Solar/Templeton Wind projects (Cause No. 45887)
• 2024-2026 Energy Efficiency Plan (Cause No. 45849)
• Solar and Wind Purchase Agreements (Cause No. 45887)
• Distributed generation tariff (Cause No. 45505)
• Schahfer Generation Station subdocket (Cause No. 38706 FAC 130-S1)
• 2021-2026 infrastructure plan (Cause No. 45557)
• Energy efficiency plan (Cause No. 45456)
• Renewable energy proposals (Various cause nos.)
• COVID-19 investigation (Cause No. 45380)
• 2017 Tax Cuts & Jobs Act investigation (Cause No. 45032)
• Coal combustion residuals compliance project (Cause No.44872)

Sales Taxes

The seven percent state sales tax applies to all Indiana electric utilities.

8-20-25