An 11 August derecho knocked out electricity to more than 300,000 NIPSCO customers, more than 60% of the company's total coverage area. Gary waited about two weeks for full restoration. NIPSCO won a $257 million rate increase last year, approved by Indiana regulators in June 2025.

Source: NBC Chicago (2026-08-19). Rate case detail: Indiana Office of Utility Consumer Counselor, Cause No. 46120.