Northern Indiana Public Service Company (NIPSCO)

Summary

Northern Indiana Public Service Company (NIPSCO) is a regulated electric and natural gas utility serving approximately 900,000 electricity customers and 830,000 gas customers across northern Indiana. The company has historically relied on coal-fired generation but has committed to a long-term transition toward cleaner energy. NIPSCO’s generation strategy includes the retirement of coal plants, expansion of utility-scale solar and wind projects, and increased reliance on natural gas and energy storage to support grid reliability. Its decarbonisation plans have positioned the company as a regional case study in balancing coal exit timelines with system adequacy and affordability. Recent federal intervention requiring continued coal operations highlights the operational challenges utilities face when infrastructure transitions outpace grid readiness.

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