How much is the ComEd solar rebate?
The ComEd solar rebate pays $300 per kW of nameplate DC capacity for homes and small businesses — a one-time check set purely by the size of your system, not by what it cost or what it produces. A 9.3 kW system earns $2,790; a 12 kW system earns $3,600. Larger commercial customers and community solar projects receive $250 per kW. Set your own size and watch the check change.
Your rebate check
Same system, applied for on or after January 1, 2030: $2,325. State law drops the rate to $250 per kW that day.
Adding a battery?System kW × $300, the home and small-business rate. Not a quote — your rebate is set by your equipment’s DC nameplate capacity, and the battery half ($300 per kWh) carries conditions of its own: ComEd battery storage rebate →
Don't know your size yet? It's one line of arithmetic: panel wattage × number of panels ÷ 1,000. Twenty-five 400-watt panels is 10 kW, and 10 kW × $300 is $3,000.
Want the full picture for your roof? The free check looks at your roof, usage and utility together.
See my numbers for my address| System size (DC nameplate) | Rebate at $300/kW |
|---|---|
| 5 kW | $1,500 |
| 7.2 kW · 2024 national median | $2,160 |
| 7.7 kW · 2025 national median | $2,310 |
| 9.3 kW · 2024 national average | $2,790 |
| 9.36 kW · 2025 Illinois median | $2,808 |
| 12 kW | $3,600 |
| 15 kW | $4,500 |
Illustrative arithmetic on ComEd's published rate. Median and average sizes are Lawrence Berkeley National Laboratory's figures for home systems installed in 2024 (7.2 kW median, 9.3 kW average) and 2025 (7.7 kW median). What the system itself costs before this comes off: how much do solar panels cost in Illinois? → What size fits your usage: how many solar panels you need → The Illinois median is Berkeley Lab’s 2025 figure for single-family homes, the same size our cost guide uses.
What changes in the ComEd rebate on October 19, 2026?
Mostly good news for people applying. ComEd’s revised rebate tariff, filed September 4, applies from October 19, 2026. State regulators chose not to suspend it. The $300 per kW home rate doesn’t change.
| The rule | Through Oct. 18, 2026 | From Oct. 19, 2026 |
|---|---|---|
| Locking in the rebate value | Apply when the agreement is signed; the system needs permission to operate within 24 months, or the application expires | Apply when the agreement is signed; no 24-month limit |
| The $300 home rate | Flat $300 per kW in the rate sheet | $300 through Dec. 31, 2029, then $250 per kW, in the rate sheet |
| Size cap | 5,000 kW | 5,000 kW AC (the rebate is still paid on DC kW) |
| The 60-day payment clock | Four conditions for everyone, including a net-metering notice | Three conditions; the notice applies only to pre-2025 full-retail systems |
| Battery rebate rate plan | Hourly or time-of-use supply for the battery’s life, plus the virtual power plant | Rate-plan rule dropped; the virtual power plant commitment stays |
| Battery without solar | Not eligible | Eligible at $300 per kWh; applications from Jan. 1, 2027 |
ComEd’s 2026 ratebook (in force through October 18) and the advance copy of its revised Rider DG REBATE, filed September 4, 2026. The ICC’s October 8 agenda shows the filing was not suspened.
The biggest change for most homes: you no longer race a 24-month clock after applying. Apply the day your interconnection agreement is signed, and the rebate value that day holds once the system gets permission to operate.
- Apply by Dec. 31, 2029 $300 per kW $2,790
- Apply on or after Jan. 1, 2030 $250 per kW $2,325
220 ILCS 5/16-107.6(c)(2) and ComEd’s revised Informational Sheet No. 48. The value is set by the day you apply, so applying before 2030 keeps $300. For homes in an Equity Investment Eligible Community, ComEd lists 2030 as “TBD by Commission.”
What do most pages get wrong about the ComEd rebate?
Five things, and each one touches your wallet or your calendar. We read ComEd's tariff, its 2026 rebate terms and the state statute line by line. Here is what you'll often read, next to what the documents say.
“Apply once your system is turned on.”
ComEd's tariff says: you can apply the day your interconnection agreement is signed. Once the system has permission to operate, you're paid the rebate value that was in effect when you applied. From October 19, 2026, the revised tariff drops the old 24-month limit and the expiry rule.
Rider DG REBATE, Sheet No. 248.3 (through October 18, 2026) and 4th Revised Sheet No. 248.4 (from October 19, 2026)“The check shows up in about 90 days — there's no deadline.”
ComEd's tariff says: ComEd must pay within 60 days once three things are true — a complete application, every document it asked for and a system operating in parallel with the grid. For a system with pre-2025 full-retail net metering, there's a fourth: its notice to you about net metering. The 90 days is the Citizens Utility Board's consumer guidance, counted from energization.
Rider DG REBATE, 2nd Revised Sheet No. 248.5 (effective October 19, 2026)“Systems installed after December 15, 2022 qualify.”
The record says: the line is interconnection after August 11, 2022 — the date of the Illinois Commerce Commission order, in Docket 21-0850, that approved the rider. December 15, 2022 is only the day the rider took effect.
Rider DG REBATE, Sheet No. 246, and the filing note on its sheets“$300 per kW.” And nothing else.
State law says: $300 per kW until December 31, 2029, then $250 per kW on or after January 1, 2030. The same section lets the Commerce Commission adjust rebate levels for new customers. From October 19, 2026, ComEd's rate sheet shows the same step.
220 ILCS 5/16-107.6(c)(2) and (l); ComEd Informational Sheet No. 48 (effective October 19, 2026)“It's free money.”
ComEd's terms say: the rebate may be taxable, and ComEd reports rebates over $600 to the IRS. (The IRS's own reporting line for 2026 payments is $2,000, about a 6.7 kW system.) It isn't a gift, either — the tariff treats it as payment for grid services your smart inverter provides for at least 25 years.
ComEd DG Rebate Terms and Conditions, 2026; Rider DG REBATE definitions; IRS Fact Sheet FS-2025-08Who qualifies for the ComEd solar rebate?
Most new home solar systems in ComEd territory qualify. The system needs a smart inverter set to ComEd's required settings, must be interconnected to ComEd's distribution grid after August 11, 2022, and has to be mainly intended to offset your own electricity use. Who supplies your electricity doesn't matter.
- A smart inverter, installed and set to ComEd's required smart-inverter settings.
- Interconnected after August 11, 2022 to ComEd's distribution system.
- 5,000 kW AC or smaller — far above any home system — and mainly for your own use.
- Your property, or the owner's permission to install there.
- A ComEd delivery customer, with any supplier. The tariff says the rebate isn't restricted to customers who buy their supply from ComEd.
- New equipment, installed to state code. ComEd's terms exclude resold and rebuilt equipment.
One thing the solar rebate does not require is a particular rate plan. Illinois Shines' consumer guidance notes there is no supply requirement when you take only the solar rebate. That condition belonged to the battery rebate. ComEd's revised tariff drops it from October 19, 2026; the battery's virtual power plant commitment stays.
If your system is leased or under a power purchase agreement (PPA), the rebate follows equipment ownership — typically the leasing or finance company, not you. Illinois Shines puts it plainly: make sure you understand who keeps the rebate. Ask for the pass-through value in writing; our lease vs. buy guide covers how that value usually does (or doesn't) show up in your contract.
Ameren Illinois customer? Same state law and the same $300 per kW for homes, but Ameren's rules and paperwork are its own — start with Ameren net metering, explained →
What does taking the ComEd solar rebate cost you?
For a system connected in 2025 or later: nothing extra. Those systems are already on supply-only net metering, and the Citizens Utility Board describes the rebate as the upfront benefit that came with that change. The cost falls on one group — owners who installed before 2025 and still have full-retail net metering. Taking the generation rebate moves that system to supply-only credits, and it can't be undone.
- Already on supply-only net metering
- CUB calls the rebate the upfront benefit of that change
- Take it: $300 per kW, once
- Taking it moves you to supply-only for good
- Each exported kWh then earns about 7.8¢ less
- Run your own numbers first
The trade is written into the statute itself: once a rebate application is approved, the customer is no longer entitled to delivery-service credits for exported power — unless the rebate is for a battery only. ComEd's tariff adds two details worth knowing. The change takes effect the day the rebate is issued, and ComEd has to notify you of it before it pays.
In plain terms: full-retail netting credits exported power against supply, delivery and taxes; supply-only credits the supply side alone. How that plays out month to month lives on our ComEd net metering guide and on what your bill looks like after solar.
- Full-retail net metering pre-2025 systems that keep it 18.0¢
- Supply-only net metering systems from 2025, or after taking the rebate 10.2¢
Illinois Shines’ October 2026 disclosure-form rates for ComEd: the all-in retail rate and the supply rate. Each exported kWh earns about 7.8¢ less on supply-only crediting.
Installed before 2025? Four things decide it
- System size: a bigger system earns a bigger check, but has more riding on its ongoing credits.
- Export share: the more of your production you send to the grid rather than use on-site, the more your full-retail netting is worth to you.
- Ownership horizon: more years left means more time for delivery-side credits to add up. Selling doesn't erase them, either — Illinois Shines notes legacy netting continues when ownership of the system changes: selling a house with solar →
- Rate trajectory: rising delivery rates make your existing credits more valuable over time. We track ComEd's October 2026 price change and explain why ComEd bills have been climbing.
There is no universal right answer — only your own numbers. Get ComEd's current terms in writing before you elect anything. And if you plan to expand an older system, ask ComEd first: Illinois Shines notes a modification big enough to need a new interconnection application can end legacy status on its own.
One change helps legacy owners. ComEd’s revised net-metering rider, set to take effect October 31, 2026, lets a pre-2025 customer switch to another legacy class without losing legacy status, and a new owner of the home keeps that status for the system’s lifetime.
Should you take it? Three questions
Answers come from ComEd’s tariff and its 2026 rebate terms. We don’t ask your name. If you tap through to the free check, your answers go with you.
How do you apply for the ComEd DG rebate, and how fast does ComEd have to pay?
You can apply as soon as your interconnection agreement is signed — you don't have to wait for the panels to go live. The application is online, through ComEd's interconnection portal; installers usually file it, but customers can register there too. Once the system is operating and the paperwork is complete, ComEd's tariff gives it 60 days to pay.
- 1Before you sign, get three things in writing.
That the installer is an Illinois Shines Approved Vendor (five minutes, here's how), that the inverter will be set to ComEd's smart-inverter settings, and who receives the rebate check. What else to check in the quote → Financing it? See how dealer fees change the price you're comparing.
- 2Interconnection agreement signed: you can apply now. Rebate value locks
The application is online through ComEd's interconnection portal. It registers customers as well as contractors, so you aren't stuck if your installer never files — though most do. Either way, ask for a copy. ComEd's terms require an itemized contractor invoice or proof-of-purchase receipt with it. Applying now holds the rebate value in effect that day. From October 19, 2026, there's no 24-month limit; through October 18, the system needs permission to operate within 24 months.
- 3
- 4Permission to operate, with net metering.
ComEd approves the system to run in parallel with the grid and your net metering enrollment takes effect. The interconnection clock, step by step, is on our ComEd net metering guide.
- 5The payment clock starts. ComEd has 60 days
It runs from the last of three things: your application is complete, ComEd has every document it asked for, and the system is operating. If your system has pre-2025 full-retail net metering, there's a fourth: ComEd's notice about the net metering change. An incomplete application delays payment or gets it denied.
- 6Check in the mail — keep your file.
The rebate arrives as a check, and ComEd's terms disclaim responsibility for one lost in the mail — confirm your mailing address. Keep invoices and approvals for a year; ComEd can inspect rebated equipment that long after it pays. Ask your tax preparer about a rebate that's reported to the IRS.
Questions about a filed application go to ComEd's DG Rebate desk: ComEd.DGRebate@dnv.com or (833) 688-7730, as listed on ComEd's rebate page on October 14, 2026.
Still deciding whether solar fits your home? The rebate is the easy part. The free check looks at your roof, your usage and your utility together — and tells you plainly if solar isn't a fit.
Check my home's fitPrefer to see the full math first? Is solar worth it in Illinois? →
Why is it also called the smart inverter rebate?
Because the smart inverter is what ComEd is paying for. Illinois law requires ComEd and Ameren to offer this rebate to customers who install solar with a smart inverter, and Illinois Shines notes it goes by both names — “distributed generation rebate” and “smart inverter rebate.” Same program, same $300 per kW.
Your side of the deal is small but lasting. The inverter has to stay on ComEd's required settings for the life of the system, and those settings can't be changed after the interconnection agreement without ComEd's agreement. Beyond that, the tariff asks nothing of you day to day: a system connected through a compliant smart inverter is treated as already delivering the grid services the rebate pays for.
Which ComEd rebates and Illinois incentives stack with it in 2026?
All of the ones that still exist. The solar rebate is separate from Illinois Shines and doesn't depend on it, so most home systems collect both. Add a battery, and the other half of ComEd's DG Rebate can apply to the same system. What no longer stacks is the federal homeowner tax credit, which expired December 31, 2025. Each has its own guide — this page stays on the solar rebate.
| Program | What it is | Full guide |
|---|---|---|
| ComEd battery rebate (the other half of the DG Rebate) | $300 per kWh for a battery. It comes with a virtual-power-plant commitment. Through October 18 it also needs a qualifying ComEd supply product; from October 19, batteries without solar qualify too, with applications from January 1, 2027 | ComEd battery storage rebate → Is a home battery worth it? → |
| ComEd virtual power plant (Rider SDVPP) | Seasonal payments for what a battery delivers on summer weekday afternoons, 4 to 6 p.m. ComEd must open it by March 1, 2027; CUB expects spring 2027 | ComEd virtual power plant → |
| Illinois Shines RECs (a state program, not ComEd's) | Pays your Approved Vendor for the system's renewable energy credits — usually passed to you as a lower price, with a $20-per-REC adder for systems you own, from June 1, 2026 | Illinois Shines, explained → |
| Property taxes | A one-time PTAX-330 filing with your county assessor governs how a solar system is valued | Solar and property taxes → |
| Tax credits | The federal residential credit (Section 25D) expired December 31, 2025. Illinois has never had a state solar tax credit | Did the solar tax credit end? → The state tax credit myth → |
The whole stack with who gets each dollar: Illinois solar incentives 2026 → Everything ComEd-specific — rates, netting and interconnection — is in the ComEd Solar Guide →
ComEd also runs a separate Energy Efficiency Program with its own rebates for things like heat pumps and appliances. Different program, different rules — this site doesn't cover it.
ComEd Solar Rebate FAQ
How much does a typical home solar system earn from the ComEd rebate?
The rebate is $300 per kW of DC nameplate capacity. A 9.3 kW system — the national average home size in Berkeley Lab's data on 2024 installations — earns $2,790, and the 7.2 kW median earns $2,160. A 5 kW system earns $1,500; a 12 kW system earns $3,600. For 2025 installs, Berkeley Lab's median rose to 7.7 kW, which earns $2,310.
Does ComEd have a solar panel program?
Yes. ComEd pays this rebate, $300 per kW of system size, as a one-time check. ComEd also connects your system to the grid and credits the power you send back through net metering. Illinois Shines, a separate state program, pays for your system's renewable energy credits, usually through your installer. The full picture is in our ComEd solar guide →
How long does ComEd have to pay the rebate?
From October 19, 2026, ComEd's tariff requires it to pay within 60 days once three conditions are met: a complete application, all the information it requested and a system operating in parallel with the grid. For a system with pre-2025 full-retail net metering, ComEd must also send its notice about the net metering change. The Citizens Utility Board tells consumers to expect the check within 90 days of energization. An incomplete application delays payment or gets it denied.
How do I check my ComEd solar rebate status?
Ask your installer first if it filed for you. If you filed it yourself, or your installer can't say, contact ComEd's DG Rebate desk at ComEd.DGRebate@dnv.com or (833) 688-7730, the contacts on ComEd's rebate page (checked October 14, 2026). ComEd's tariff gives it 60 days to pay once your application is complete and your system is running. If it's been longer, ask which step is missing.
When can I apply for the ComEd DG rebate — before or after installation?
As early as the day your interconnection agreement is signed. Under ComEd's tariff, once the system is interconnected and has permission to operate, you receive the rebate value that was in effect when you applied. From October 19, 2026, ComEd's revised tariff has no 24-month limit. The application is filed online through ComEd's interconnection portal, which registers customers as well as contractors, and ComEd processes it once the system is operating.
Is the ComEd solar rebate going down in 2030?
Yes, under current law. Section 16-107.6 of the Illinois Public Utilities Act sets the base rebate at $300 per kW until December 31, 2029 and $250 per kW on or after January 1, 2030. The same section lets the Illinois Commerce Commission adjust rebate levels for new customers, so the figure can also change through a Commission proceeding. ComEd's tariff pays the value in effect when you applied, and from October 19, 2026 its rate sheet shows the same $300-to-$250 step.
What changes in the ComEd solar rebate on October 19, 2026?
ComEd's revised rebate tariff applies from that day. It drops the 24-month limit on locking in the rebate value, writes the 2030 step to $250 per kW into ComEd's rate sheet, sets the size cap at 5,000 kW AC and limits the net-metering notice to pre-2025 systems. It also adds a rebate for batteries without solar. The $300 per kW home rate doesn't change.
Does the ComEd solar rebate require a specific interconnection date?
Yes — interconnection after August 11, 2022. That is the date of the Illinois Commerce Commission order, in Docket 21-0850, that approved ComEd's rebate rider. December 15, 2022, which you may see cited instead, is the date the rider took effect.
Who gets the ComEd rebate check — me or my installer?
ComEd's terms pay the owner or operator of the system, and the applicant confirms the rebate rights haven't been assigned to anyone else. If you own the system, that's you. Installers often file the paperwork. If a quote shows the rebate already subtracted from your price, ask who receives the check and get the answer in writing.
Can I get the rebate if I lease my solar system or have a PPA?
The rebate follows equipment ownership — for a lease or PPA, that's typically the leasing or finance company, not you. Ask how that value shows up in your contract and get it in writing; our lease-vs-buy guide covers what to look for. Lease vs PPA vs buying, full-term math →
Can I get the rebate if I buy electricity from an alternative supplier?
Yes. ComEd's tariff says the rebate isn't restricted to customers who buy their supply from ComEd, so customers of alternative retail electric suppliers are eligible. You do need to be a ComEd delivery customer. The battery rebate is different: through October 18, 2026 it also requires a qualifying ComEd supply product; from October 19, only its virtual power plant commitment remains.
Will taking the ComEd solar rebate end my net metering?
It doesn't end net metering. It changes which kind you have, and only for some people. If your system was interconnected on or after January 1, 2025, you're already on supply-only net metering, so the rebate changes nothing. If you installed before 2025 and still have full-retail net metering, taking the rebate moves that system to supply-only for good. ComEd net metering, explained →
I installed solar before 2025 — should I take the rebate now?
That depends on your own numbers — system size, how much you export versus use, how long you plan to keep the system, and where delivery rates are headed. There's no one-size-fits-all answer. The three questions above walk through the factor that moves the math most; get ComEd's current terms in writing before you decide, because the choice can't be reversed.
Is the ComEd solar rebate taxable?
It may be. ComEd's terms say rebates may be taxable under federal and state tax codes, and that a rebate over $600 will be reported to the IRS unless you show you're exempt. The IRS's own reporting line for payments made in 2026 is $2,000, which a system of about 6.7 kW or more reaches. This isn't tax advice; ask your tax preparer how it applies to you.
Is the ComEd DG rebate the same thing as the smart inverter rebate?
Yes. Illinois Shines notes the program goes by both names — distributed generation rebate and smart inverter rebate — and Ameren's version is officially Rider CGR, its Customer Generation and Storage Rebate. The smart inverter is the point: ComEd's tariff treats the rebate as payment for the grid services that inverter provides.
Is the ComEd solar rebate the same as Illinois Shines, or a “renewable portfolio” incentive?
No — those are two names for a different program. Illinois Shines is funded through Illinois' Renewable Portfolio Standard, a charge on utility customers' bills that the utilities use to buy renewable energy credits from Approved Vendors; that value usually reaches you as a lower price. The DG Rebate is a one-time check direct from ComEd. It doesn't depend on Shines, and most home systems collect both. How Illinois Shines pays →
Can I get the rebate again if I add panels later?
Not on the same capacity. State law offers the rebate to generation that hasn't previously received one, and ComEd's tariff bars a rebate on any portion of a system's capacity that already has one or has an application pending. Neither spells out how expansions are handled, so ask ComEd in writing before you count on a rebate for added panels — and if you have pre-2025 legacy net metering, ask what the expansion does to that first.
Can I get a home battery if my roof can't take solar?
Yes. From October 19, 2026, ComEd's rebate covers a battery without solar at $300 per kWh, with conditions of its own and applications from January 1, 2027. In parts of ComEd's area, two companies also install a battery for a small fee or a refundable deposit and sell you electricity under a 12- or 15-year battery agreement. Leaving early costs $500, and one of them charges $15,000 if the battery stays at your home. Compare the two plans before you sign →
The rebate terms, in plain English
- kW (DC nameplate)
- Your system’s size: panel watts × number of panels ÷ 1,000. The rebate is paid per kW of it.
- Interconnection agreement (IA)
- Your contract with ComEd to connect the system. You can apply for the rebate the day it’s signed.
- Permission to operate (PTO)
- ComEd’s OK to turn the system on and run it with the grid.
- Smart inverter
- The inverter that turns panel power into home power. ComEd pays for the grid support its settings provide.
- Full-retail net metering
- Pre-2025 crediting: each kWh you export offsets supply, delivery and taxes.
- Supply-only net metering
- Crediting for systems from 2025 on: exports offset only the supply part of the bill.
- Rider DG REBATE
- The ComEd tariff that sets the rebate’s rules. A revised version applies from October 19, 2026.
- Virtual power plant (VPP)
- ComEd’s program that can call on rebated batteries on summer afternoons, for pay.
See what the ComEd solar rebate means at your address.
The rebate is a one-time check. What your roof can produce is the part you keep. The free check looks at both — about a minute, no obligation.
Free eligibility check · ComEd & Ameren · No obligation- Says so if it isn’t a fit
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The Day Company is an independent solar, battery and electricity information resource. Information you submit may be used by our review team and authorized partners to contact you about your request. Checking eligibility creates no obligation.
Sources and updates
Sources (21)
- ComEd — revised Rider DG REBATE, advance copy (PDF) (filed September 4, 2026, effective October 19, 2026: Sheets 245–248.5 and Informational Sheet No. 48; the value lock, the 60-day rule, the 2030 rates, the AC size cap and the battery changes)
- ComEd — Schedule of Rates, 2026 ratebook (PDF) (Rider DG REBATE in force through October 18, 2026, Sheet Nos. 245–248.5, PDF pages 376–384)
- Illinois Commerce Commission — Regular Open Meeting agenda, October 8, 2026 (ComEd’s Public Act 104-0458 filing and Ameren’s Rider CGR: “Do Not Suspend the Filing”)
- ComEd — Distributed Generation Rebate Terms and Conditions, 2026 (PDF) (the $300 and $250 rates, the invoice requirement, the one-year inspection window and the $600 reporting line)
- ComEd — Distributed Generation Rebates (the online application, the DG Rebate desk contacts and the virtual power plant sentence, read October 14, 2026)
- ComEd — ConnectTheGrid interconnection portal (customers and contractors can both register)
- Illinois General Assembly — 220 ILCS 5/16-107.6 (as amended by Public Acts 104-0458 and 104-0477: $300 per kW until December 31, 2029 and $250 from January 1, 2030; the net metering consequence; the Commission’s power to adjust rebates)
- Illinois General Assembly — 220 ILCS 5/16-107.5 (net metering, and the end of full-retail crediting for new systems on January 1, 2025)
- ComEd — revised Rider POGNM, advance copy (PDF) (effective October 31, 2026: legacy class switches and successor customers)
- Citizens Utility Board — Solar and Storage Rebates in Illinois (PDF) (March 2026: the 90-day guidance and the legacy net-metering warning)
- Citizens Utility Board — The Clean and Reliable Grid Affordability Act: details on consumer benefits (September 14, 2026: the virtual power plant’s spring 2027 target)
- Illinois Shines — Consumer FAQs (both names for the rebate, no supply requirement for the solar-only rebate, why the pre-2025 choice can’t be reversed, the $20 adder and how Shines is funded)
- IRS — Fact Sheet FS-2025-08 (PDF) (Q21: the $2,000 reporting threshold for payments made in 2026)
- IRS — Fact Sheet FS-2025-01 (PDF) (when rebates and utility subsidies are taxable)
- ComEd news release, August 4, 2026 (program totals: more than $350 million, and a record $80 million in 2025)
- Lawrence Berkeley National Laboratory — U.S. Distributed Solar and Storage, 2026 Data Update (PDF) (2025 home systems: 7.7 kW median)
- Lawrence Berkeley National Laboratory — U.S. Distributed Solar and Storage, 2025 Data Update (PDF) (2024 home systems: 7.2 kW median, 9.3 kW average)
- Ameren Illinois — Rider CGR, Customer Generation and Storage Rebate (Ameren’s version of the rebate, effective October 19, 2026)
- Citizens Utility Board — Q&A: battery and electricity supply offers in Illinois (July 22, 2026: battery agreement terms and exit fees)
- Illinois Shines — Utility rates used in disclosure forms, October 2026 (spreadsheet) (ComEd retail and supply rates, for the per-kWh comparison)
Changelog · last updated October 15, 2026 · 4 updates
- October 15, 2026: Redesigned and re-checked every figure at its source. Updated for ComEd’s revised rebate tariff, which takes effect October 19, 2026 and wasn’t suspended: the 24-month limit on the value lock ends, the 60-day payment rule’s net-metering notice now applies only to pre-2025 systems, the size cap is 5,000 kW AC and the battery rebate drops its rate-plan rule. Corrected the IRS reporting line ($2,000 for 2026 payments, not $600), Ameren’s tariff name (Rider CGR) and the $350 million figure. Removed the net metering enrollment requirement, which we couldn’t find in ComEd’s page, tariff or terms. Added Berkeley Lab’s 2025 median size (7.7 kW), a before-and-after table of the October 19 changes, ComEd’s October 31 legacy net-metering change, a per-kWh comparison of the trade-off, a roof question in the checker and answers on checking your rebate status and ComEd’s solar program.
- September 21, 2026: Re-verified against ComEd’s tariff (Rider DG REBATE), its 2026 Terms and Conditions, Section 16-107.6 of the Public Utilities Act, the Citizens Utility Board and Illinois Shines. Added the tariff’s 60-day payment rule and 24-month value lock, the statutory step-down to $250 per kW on January 1, 2030, and the net metering enrollment requirement; corrected the payment-window wording and replaced the 2024 terms citation with the 2026 edition; moved the worked example to the 9.3 kW national average; added a live rebate check, an application timeline and a three-question trade-off check; trimmed the Ameren comparison, REC pricing and virtual-power-plant detail down to links to the guides that own them.
- August 7, 2026: Added a decision-support checker for the pre-2025 trade-off, and linked the rebate to the rest of the incentive stack, quote-vetting and sizing guides throughout.
- July 21, 2026: Published.
How to cite: The Day Company review team, “How does the ComEd solar rebate work?,” The Day Company, updated October 15, 2026. https://theday.company/answers/comed-solar-rebate
The Day Company is not a government agency, utility, ComEd, Ameren, the Citizens Utility Board, Illinois Shines, the Illinois Commerce Commission or the IRS, and does not imply affiliation with or endorsement by any of them. Utility names identify service areas only. Nothing here is tax, legal or financial advice. Rebate figures are illustrative arithmetic on ComEd’s published rate, not a quote or a guarantee; eligibility is determined by ComEd under its own terms. Figures were last reviewed in October 2026.