ComEd is an investor-owned utility serving about 3,753,924 homes in Illinois. Here's what its rates and export rules mean for solar: for a typical customer, solar is worth it.
Reduced export credit — about 9¢ per exported kWh, monthly netting.
Supply credit varies monthly (summer 2025 ~10 cents). Battery rebate requires hourly supply (BESH) rate.
Supply-only net metering (IL, systems interconnected on/after 2025-01-01): imports netted against exports only for the supply portion; delivery charges, taxes and fees billed on gross imports. Excess credited 1:1 kWh or monetary at supply rate; credits do not expire. Customers may take $300/kW DG rebate.
| System | 5 kW (89% of 622 kWh/month) |
|---|---|
| Cost | $18,000, $16,500 after incentives |
| First-year savings | $1,221 |
| Payback | 12.5 years |
| 25-year net | $24,208 |
Uses the utility's average price; time-of-use plans can change this, so pick your plan in the calculator.
Rates we verified from ComEd's tariff documents. Prices are per kWh including the main riders where noted; check your bill for the plan you're on.
Plan for solar customers. Effective 2026-10-01. Fixed charge $19.07/month.
| Period | Price |
|---|---|
| 12am–12am (4 months) | 16.8¢ |
| 12am–12am (8 months) | 16.5¢ |
EIA-861, 2025.
Supply credit varies monthly (summer 2025 ~10 cents). Battery rebate requires hourly supply (BESH) rate. Exported power is credited at about 9¢ per kWh.
Residential customers paid an average of 18.1¢ per kWh in 2025 (EIA), about 19.3¢ adjusted to 2026. The typical home uses 622 kWh a month, a bill of about $120.
For a typical customer, solar is worth it: a 5 kW system costing about $16,500 pays back in about 12.5 years, with $24,208 net over 25 years.
About 73,159 homes had net-metered solar at the end of 2025, roughly 1.9% of residential customers (EIA-861).
Legal name: Commonwealth Edison Co (EIA ID 4110). Data: EIA-861 2025 and monthly data through 2026, state policy research October 2026, utility tariff sheets.