Solar for ComEd Customers: Net Metering and Export Credits
How your utility credits the solar power you send back to the grid has a big effect on what solar is worth to you. Here's what official sources say for ComEd customers. Rules change, so confirm current terms with the utility before you sign.
About ComEd
The U.S. Energy Information Administration's Form EIA-861 data for 2024 lists 3,727,675 residential customers for Commonwealth Edison Co (Illinois), ranking #4 among U.S. utilities in our tally of bundled plus delivery-only residential customers. Source: https://www.eia.gov/electricity/data/eia861/ (accessed 2026-10-20)
How ComEd credits home solar
- ComEd says that as of January 1, 2025, new net metering customers in the Residential or Small Load delivery classes receive credits that offset charges in the Supply section of the bill. Customers who interconnected by December 31, 2024 keep full retail rate net metering (credits against Supply, Delivery, and Taxes & Fees) for the life of the system, which ComEd describes as 30 years. Source: https://www.comed.com/cdn/assets/v3/assets/blt3ebb3fed6084be2a/bltceb8d9495434223b/695be67c33699162b6ea350c/20065_Net_Metering_FAQ_2025_1223A.pdf (accessed 2026-10-20)
A note on the federal tax credit
The federal residential clean energy credit (25D) doesn't apply to expenditures made after December 31, 2025. The IRS treats an expenditure as made when installation is completed. Source: https://www.irs.gov/newsroom/faqs-for-modification-of-sections-25c-25d-25e-30c-30d-45l-45w-and-179d-under-public-law-119-21-139-stat-72-july-4-2025-commonly-known-as-the-one-big-beautiful-bill-obbb (accessed 2026-10-20). This page isn't tax advice.
What this means for your quote
Savings depend on how much of your solar you use on site versus export, your rate plan, and your system size. We can't give a typical savings figure; it varies, and your quote should show the assumptions behind any estimate.
Questions for your installer
- Does your estimate credit exports only against the Supply portion of my bill?
- Does my retail supplier (if I have one) affect my credits?
- Will you handle the ComEd interconnection application?
Sources
- https://www.comed.com/cdn/assets/v3/assets/blt3ebb3fed6084be2a/bltceb8d9495434223b/695be67c33699162b6ea350c/20065_Net_Metering_FAQ_2025_1223A.pdf (accessed Oct 20, 2026)
- U.S. Energy Information Administration, Form EIA-861 (2024 data) — https://www.eia.gov/electricity/data/eia861/ (accessed Oct 20, 2026)
- IRS, "FAQs for modification of sections 25C, 25D, 25E, 30C, 30D, 45L, 45W, and 179D under Public Law 119-21 (OBBB)" — https://www.irs.gov/newsroom/faqs-for-modification-of-sections-25c-25d-25e-30c-30d-45l-45w-and-179d-under-public-law-119-21-139-stat-72-july-4-2025-commonly-known-as-the-one-big-beautiful-bill-obbb (accessed Oct 20, 2026)
SolarMatchup is a free service: you submit one request and we match you with one installer. Their proposal is an estimate, not a guarantee — use this guide to read it carefully and ask questions before you sign. Savings, if any, depend on your usage, utility rates, and local rules.
Last reviewed 2026-10-20.
More for Illinois homeowners: state guide with utility rules, prices and city pages.
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