NIPSCO
NIPSCO is the regulated electric and natural gas utility serving northern Indiana, operating as the principal subsidiary of NiSource Inc.
Last updated October 19, 2026
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Overview
NIPSCO — the Northern Indiana Public Service Company — is a regulated electric and natural gas utility headquartered in Merrillville, Indiana, in the United States. It is the principal operating subsidiary of NiSource Inc., a publicly traded energy holding company listed on the New York Stock Exchange under the ticker NI. NIPSCO serves a large swath of northern Indiana, delivering electricity and natural gas to residential, commercial and industrial customers across dozens of counties in the northern part of the state. As a regulated utility, NIPSCO's rates, service territory and capital plans are overseen by the Indiana Utility Regulatory Commission (IURC), and its operations are subject to federal and state energy regulation. The company's business is divided broadly between electric generation, transmission and distribution, and natural gas distribution. Its electric generation fleet has historically been anchored by coal-fired plants, but NIPSCO has pursued a significant energy transition, retiring coal units and adding wind, solar and other renewable resources to its generation mix. NIPSCO is a well-known regional utility brand in the Midwest, recognized for its role in powering homes and businesses in communities such as Gary, Hammond, South Bend, Fort Wayne and the surrounding areas. Its parent, NiSource, also owns natural gas utilities in other states, making NIPSCO one of the larger utility operating companies within the NiSource group. The company traces its roots to the early 20th century, when it was formed to consolidate and expand electric and gas service in northern Indiana. Over the decades it grew through infrastructure investment and acquisitions, eventually becoming a subsidiary of NiSource. In recent years NIPSCO has emphasized reliability, grid modernization and a transition toward cleaner generation, while continuing to provide essential electric and gas service to its Indiana customers.
History
The Northern Indiana Public Service Company (NIPSCO) was organized in the early 20th century to consolidate and expand electric and natural gas service across northern Indiana. As the region industrialized — particularly around the steel mills and manufacturing centers near Lake Michigan — demand for reliable power and gas grew rapidly, and NIPSCO invested in generation, transmission and distribution infrastructure to serve those communities. Through the mid-20th century, NIPSCO expanded its service territory and customer base, becoming one of the dominant utilities in northern Indiana. It built and operated coal-fired generating stations that formed the backbone of its electric supply, alongside a growing natural gas distribution network serving homes and businesses. In the late 20th century, NIPSCO became part of a larger energy holding company structure. Its parent, NiSource Inc., consolidated several utility and pipeline businesses, and NIPSCO became the principal electric and gas utility subsidiary within the group. NiSource is publicly traded on the New York Stock Exchange. In the 21st century, NIPSCO has focused on modernizing its grid, improving reliability and transitioning its generation fleet. The company announced plans to retire much of its coal-fired generation and replace it with renewable resources, including wind and solar, as well as natural gas. This energy transition has been a defining strategic theme for the utility in recent years, alongside continued investment in gas distribution safety and infrastructure replacement programs. Today NIPSCO remains a regulated utility serving northern Indiana, with its rates and service governed by the Indiana Utility Regulatory Commission. It continues to operate as a key subsidiary of NiSource, providing essential electric and natural gas service to hundreds of thousands of customers.
- 2018
NIPSCO announces plans to retire coal-fired generation and transition to renewable and natural gas resources.
- 1999
NIPSCO Industries reorganizes and becomes NiSource Inc., with NIPSCO as a principal utility subsidiary.
- 1912
Northern Indiana Public Service Company organized to consolidate electric and gas service in northern Indiana.
Products and positioning
Regulated regional electric and natural gas utility serving northern Indiana, focused on reliability, grid modernization and a transition to cleaner generation.
Electric service
Regulated electricity generation, transmission and distribution to customers in northern Indiana.
Natural gas service
Regulated natural gas distribution to residential, commercial and industrial customers.
Energy efficiency programs
Programs to help customers reduce energy use and manage bills.
Controversies
2026
NIPSCO commits to third-party audit of storm response after widespread power outages
NIPSCO, a utility company serving Northwest Indiana, committed to a third-party audit of its storm response following widespread power outages. The commitment was reported as a controversy note concerning the company's handling of the outages.
2019
NIPSCO agrees to $1 million settlement
NIPSCO agreed to pay a $1 million fine following a U.S. Department of Labor investigation into findings that it discriminated against female and Black job applicants in 2013 and 2014.
Recent events
- Unconfirmed
NIPSCO commits to third-party audit of storm response after widespread power outages[3]
Reported:
NIPSCO, a Northwest Indiana utility company, committed to a third-party audit of its storm response following widespread power outages.
NIPSCO agrees to $1 million settlement[4]
Reported:
NIPSCO agreed to pay a $1 million fine following a U.S. Department of Labor investigation into findings that it discriminated against female and Black job applicants in 2013 and 2014.
Sources4 sources
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