The table below shows Illinois Energy's PriceCap® Plan variable rates and the North Shore Gas' gas supply costs for the past 12 months.
| Offer Month | PriceCap Variable Rate | North Shore Gas' Supply Cost |
|---|---|---|
| Sep 2025 | $0.489/per therm | $0.3417/per therm |
| Aug 2025 | $0.510/per therm | $0.3594/per therm |
| Jul 2025 | $0.503/per therm | $0.4249/per therm |
| Jun 2025 | $0.511/per therm | $0.5298/per therm |
| May 2025 | $0.503/per therm | $0.6261/per therm |
| Apr 2025 | $0.575/per therm | $0.5600/per therm |
| Mar 2025 | $0.592/per therm | $0.5640/per therm |
| Feb 2025 | $0.621/per therm | $0.4957/per therm |
| Jan 2025 | $0.655/per therm | $0.4471/per therm |
| Dec 2024 | $0.608/per therm | $0.449/per therm |
| Nov 2024 | $0.447/per therm | $0.4396/per therm |
| Oct 2024 | $0.447/per therm | $0.3260/per therm |