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REGULATORY ENVIRONMENT - PGL AND NSG 2026 RATE APPLICATION (Details) - Illinois Commerce Commission (ICC) $ in Millions | 1 Months Ended |
--- | --- | ---
Jan. 31, 2026 USD ($) | Feb. 28, 2025 in
2026 Rate Application | PGL |  |
Public Utilities, General Disclosures [Line Items] |  |
Decrease to prior rate request | $ 57.3 |
Requested Rate Increase (Decrease), Amended, Amount | $ 144.0 |
Requested Rate Increase (Decrease), Amended, Percentage | 14.60% |
2027 capital investments planned under PRP | $ 349.0 |
Requested return on equity (as a percent) | 10.10% |
Requested common equity component average (as a percent) | 54.00% |
2026 Rate Application | NSG |  |
Public Utilities, General Disclosures [Line Items] |  |
Decrease to prior rate request | $ 4.0 |
Requested Rate Increase (Decrease), Amended, Amount | $ 8.7 |
Requested Rate Increase (Decrease), Amended, Percentage | 8.40% |
Requested return on equity (as a percent) | 10.10% |
Requested common equity component average (as a percent) | 54.00% |
SMP Proceedings | PGL |  |
Public Utilities, General Disclosures [Line Items] |  |
Minimum diameter of pipe that does not require replacement | in |  | 36

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