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 |
|---|---|---|
| Aug 2023 | $0.422/per therm | $0.3371/per therm |
| Jul 2023 | $0.436/per therm | $0.2968/per therm |
| Jun 2023 | $0.398/per therm | $0.2673/per therm |
| May 2023 | $0.397/per therm | $0.2842/per therm |
| Apr 2023 | $0.401/per therm | $0.3250/per therm |
| Mar 2023 | $0.449/per therm | $0.2534/per therm |
| Feb 2023 | $0.643/per therm | $0.4501/per therm |
| Jan 2023 | $0.759/per therm | $0.6601/per therm |
| Dec 2022 | $0.900/per therm | $0.4580/per therm |
| Nov 2022 | $0.695/per therm | $0.7248/per therm |
| Oct 2022 | $0.764/per therm | $0.8618/per therm |
| Sep 2022 | $1.079/per therm | $0.9265/per therm |