Market Intelligence

Illinois Energy Market

PJM capacity prices, the 2025 Resource Adequacy outlook, the CRGA Act, and the rate trends driving commercial energy decisions across ComEd and Ameren territory.

In this series

Decision-grade guides, kept current.

High-voltage transmission towers and power lines across an Illinois prairie at dusk, representing rising commercial electricity and grid capacity costs

Market Insights

Why Illinois Commercial Electricity Costs Keep Climbing in 2026, and What Manufacturers Can Do About It

Illinois commercial power costs are rising for structural reasons: PJM and MISO capacity charges and fast-growing data center load. Here is what changed in ComEd and Ameren territory, what is filed for summer 2026, and the one cost lever a manufacturer actually controls.

June 1, 2026 · 9 min read

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