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How does Ameren's virtual power plant program work?
Ameren Illinois' Scheduled Dispatch Virtual Power Plant — Rider SDVPP — will let Ameren dispatch enrolled home batteries from 4 to 6 p.m. on weekdays, June through September, starting in 2027. The change that already affects people is upstream: since June 1, 2026, Ameren has tied its $300-per-kWh battery rebate to enrolling in the program. Ameren has not yet published what the program pays.
That last sentence is not an oversight on our part. The tariff legally took effect on July 16, 2026, but as of August 3, 2026 Ameren still has not published the rider text — and there is a second requirement, older than the virtual power plant and easier to miss, that decides whether the rebate is available to you at all. Both are below.
Independent public sources we cite and link — The Day Company is not affiliated with or endorsed by Ameren Illinois, the Illinois Commerce Commission, or the Citizens Utility Board. We are an Illinois solar and battery information resource and a lead-generation business.
What is Ameren's Rider SDVPP?
It is a utility-run virtual power plant. Instead of building a peaking plant, Ameren pays customers for the right to draw on their home batteries during the hours when the grid is most strained — 4 to 6 p.m. on weekdays from June through September. Community solar and other front-of-meter resources have a slightly longer window, 4 to 7 p.m. Service begins in 2027.
The program exists because Illinois law requires it. Public Act 104-0458 — the Clean and Reliable Grid Affordability Act, enacted January 8, 2026 — amended Section 16-107.6(e) of the Public Utilities Act to direct the state's large utilities to establish scheduled-dispatch virtual power plant programs. Both Ameren and ComEd filed on June 1, 2026, the statutory deadline.
A precision point most coverage gets slightly wrong. Ameren's filing is ERM #26-097, adding Rider SDVPP at Sheet No. 68 and Original Sheet Nos. 68.001 through 68.005 of its Illinois tariff. It appeared as Agenda Item E-3 at the Commission's June 24, 2026 Regular Open Meeting, where the disposition recorded was "Do Not Suspend the Filing." That is not an approval order — the Commission declined to suspend the tariff, which allowed it to take effect on the requested date of July 16, 2026. It is an ordinary way for a compliance tariff to take effect, but "approved" is not quite the right word, and pages using it are being loose.
How did the program get here, and what is missing?
Five dated steps, and one gap. The law passed in January, both utilities filed in June, the Commission let Ameren's tariff take effect in July, and service starts in 2027. What has not happened is publication of the rider text itself, which is where the rate, the term and the exit conditions live.
Sources: Public Act 104-0458 (enacted January 8, 2026); Illinois Commerce Commission filing records for ERM #26-097 and the Regular Open Meeting agenda of June 24, 2026; Ameren Illinois DER Bulletin 2026-04; Ameren's own Ill. C.C. No. 1 tariff index, checked August 3, 2026, which still lists Sheet No. 68 as "For Future Use."
Do you have to join the VPP to get Ameren's battery rebate?
According to Ameren's own bulletin to its renewable-energy partners, yes — and this is the part of the program that already applies rather than starting in 2027. Ameren's DER Bulletin 2026-04 states that as of June 1, 2026, energy storage rebate eligibility is linked to participation in a utility-managed virtual power plant program, and that to be eligible for a storage rebate a customer must enroll in an SDVPP program.
Ameren's own sources do not agree on this, and we are not going to pretend otherwise. The DER Bulletin states the SDVPP enrollment requirement plainly. Ameren's customer-facing rebate page, checked on August 3, 2026, does not mention the virtual power plant anywhere — including in the FAQ that asks directly whether a specific rate or service is required.
The bulletin is the more recent and more specific document, and it is written for the installers who actually file rebate applications, so we treat it as operative. But ask Ameren to confirm the requirement in writing before you sign anything that depends on the rebate, and be aware that an installer working from the public page alone may not know about it.
One older requirement appears to have gone. Ameren's rebate terms previously required storage-rebate recipients to take service under Peak Time Rewards, Real Time Pricing or Power Smart Pricing — a choice that bound not only the customer but future residents at the same address. That language is no longer on Ameren's current rebate page. We could not confirm whether it was removed from the underlying tariff or merely from the web page, so treat it as unresolved rather than repealed.
How much are Ameren's solar and battery rebates?
For residential and small commercial customers — rate classes DS-1 and DS-2 — Ameren pays $300 per kW-DC on the smart inverter used to interconnect a generator such as solar, and $300 per kWh on the inverter used to connect an energy storage system. Larger commercial classes receive $250 in each case. These are one-time rebates paid after the system is energized.
Swipe the table sideways to see every column →
| Rate class | Solar smart inverter | Energy storage | Who it applies to |
|---|---|---|---|
| DS-1 | $300 per kW-DC | $300 per kWh | Residential |
| DS-2 | $300 per kW-DC | $300 per kWh | Small general service |
| DS-3, DS-4, DS-6 | $250 per kW-DC | $250 per kWh | Larger commercial and industrial |
Ameren Illinois published rebate terms, checked August 3, 2026. Systems cannot exceed 5,000 kW (Citizens Utility Board, March 2026). Amounts are rebates on the inverter capacity, not on total project cost.
To put the storage figure in context: a 13.5 kWh home battery attracts roughly $4,050 at $300 per kWh, and a 10 kW-DC solar array roughly $3,000. Both are meaningful, and both are contingent on requirements Ameren does not spell out on the same page as the amounts — which is the next section.
What are the requirements for Ameren's storage rebate?
Four, and only two of them appear on the page where the rebate amounts are listed. Taken together they rule out a large share of the people who go looking for a battery rebate in the first place.
- You must be an Ameren Illinois distribution customer on an eligible rate class. Rebates are tied to the rate class, and DS-1 covers residential.
- The storage must be charged by an on-site renewable generator. Ameren's terms state that any energy storage system included in a smart inverter rebate application must be charged by an on-site generator using a renewable resource. A standalone battery does not qualify.
- The system cannot exceed 5,000 kW, which is not a constraint any household will meet.
- Enrollment in the SDVPP program, per DER Bulletin 2026-04, effective June 1, 2026 — the requirement Ameren's own rebate page does not mention.
There is one further consequence worth knowing if you already have solar. If your system was interconnected before January 1, 2025 and you take a rebate on the generator, Ameren stops applying excess-generation credits to your delivery charges, while supply and transmission crediting continues. Taking a rebate on storage only does not trigger that. The crediting rules are set out on Ameren net metering.
Why does the battery rebate require solar?
Because Ameren's rebate is written around the inverter, not the battery. Its published terms state that any energy storage system included in a smart inverter rebate application must be charged by an on-site generator using a renewable resource. In plain terms: a standalone battery does not qualify. To claim $300 per kWh on storage, you need generation on the property — which for almost every Illinois home means rooftop solar.
This is the single most consequential fact on this page, and it is the one least likely to come up in a sales conversation about batteries. Someone reading about a virtual power plant paying homeowners for stored energy can reasonably conclude that a battery is the purchase to make. Under Ameren's rules, a battery on its own earns no rebate at all.
The order of operations therefore runs backwards from how most people approach it. Solar comes first, because it is what makes the storage rebate reachable. Whether solar works on your particular roof is a separate question with a real answer, and it is worth settling before you price batteries.
Can you actually get Ameren's battery rebate?
Five questions decide it. Nothing you select is sent anywhere — this runs entirely in your browser.
1. Is Ameren your electric utility?
2. Do you own your home?
3. Do you have rooftop solar, or a system already planned?
4. Are you considering a home battery?
5. Where are you in the process?
Solar is the step that unlocks the rest. Ameren's storage rebate needs generation on the property, so whether your roof supports solar decides whether the battery rebate is even reachable. The eligibility check is free, takes about a minute, and tells you no when the answer is no.
Check my eligibility →You're in ComEd territory, which runs its own version. ComEd's Scheduled Dispatch VPP has published terms Ameren hasn't — including the rate it pays and the commitments attached to its battery rebate. Start with ComEd's virtual power plant explained, and if you want to know whether solar works on your roof, that check is free.
Check my eligibility →This reflects the rebate and program rules Ameren published as of August 3, 2026. It is not an application, not a decision, and not a substitute for confirming current terms with Ameren before you commit to anything. If you continue to our eligibility check, your answers come with you so you don't have to repeat them.
What Ameren has confirmed, and what it still hasn't
More is unpublished than published, and that is unusual for a tariff that already took legal effect. We checked three routes — the Commission's filing records, its docket system, and Ameren's own rate library — and the rider text is not publicly available through any of them. The right-hand column below says what constrains each missing figure and where it will appear.
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| Program term | Status | What we know, and where it will appear |
|---|---|---|
| Dispatch window | Confirmed | 4–6 p.m. weekdays, June–September (4–7 p.m. for community solar) — DER Bulletin 2026-04 |
| Launch | Confirmed | Service begins in 2027 — DER Bulletin 2026-04 |
| Battery rebate link | Confirmed | SDVPP enrollment required for the storage rebate as of June 1, 2026 — DER Bulletin 2026-04 |
| Effect on your supply | Confirmed | None — enrollment does not change your supply arrangement |
| What it pays | Not published | Constrained by statute: Public Act 104-0458 sets a floor of at least $10 per kW of average dispatch. Will appear in Rider SDVPP, Ill. C.C. No. 1 Sheet 68 |
| Program term length | Not published | Rider SDVPP. ComEd's separately filed equivalent runs five consecutive seasons |
| Enrollment date and process | Not published | Coordinated by Ameren and a third-party provider; expect a DER Bulletin before service begins |
| Minimum or maximum system size | Not published | Rider SDVPP. Separately, rebate-eligible systems cannot exceed 5,000 kW |
| Program capacity cap | Not published | Rider SDVPP. Not required by the statute, so there may be none |
| Early exit terms or penalty | Not published | Rider SDVPP — the term most worth reading before enrolling |
| What happens if you sell the home | Not published | Rider SDVPP |
Confirmed items: Ameren Illinois DER Bulletin 2026-04 and published rebate terms. Statutory floor: Public Act 104-0458 amending Section 16-107.6(e) of the Public Utilities Act. Checked August 3, 2026: Ameren's own tariff index still lists Sheet No. 68 — the sheet the Commission's records assign to Rider SDVPP — as "For Future Use," and the index itself has not been revised since October 2025.
We will not fill those gaps with ComEd's figures. ComEd set its rate at $10 per kW-Season and its term at five years, and it would be easy to present those as Ameren's — several pages effectively do, by describing "the Illinois VPP program" as though there were one. There are two, filed separately under different tariffs, and Ameren's numbers are simply not out yet.
Thinking about a battery? Start one step earlier.
Ameren's storage rebate needs solar on the property first. The eligibility check is free, takes about a minute, and if your roof isn't suitable it says so instead of booking you a sales call.
Check my eligibility →Does joining change my electricity supplier or my rate?
No, and Ameren is unusually direct about this. Its bulletin states that enrollment in the SDVPP program does not by itself change a customer's existing electric supply option, or automatically enroll them in or remove them from other demand response programs.
"It is not a supplier switch, retail rate change, or replacement for other demand response offerings."
Ameren Illinois, DER Bulletin 2026-04
In practice that means you can stay on Basic Generation Service, Real Time Pricing or Power Smart Pricing, and you remain eligible for Peak Time Rewards and Peak Time Savings. Participation is additive rather than a substitution.
That is a meaningful difference from ComEd's structure. ComEd's battery rebate requires the customer to take service under Rate BESH — an hourly pricing plan — and to keep taking it for the life of the energy storage facility, which is a permanent commitment attached to the equipment rather than a five-year one. Ameren has published no equivalent condition on SDVPP participation itself.
How does Ameren's program compare to ComEd's?
The two programs are close to identical where both have published, which makes sense — they were written to the same statute and filed on the same day. The differences that matter are in what Ameren has not said yet, and in the conditions attached to each utility's battery rebate.
Swipe the table sideways to see both columns →
| Ameren Illinois | ComEd | |
|---|---|---|
| Grid operator | MISO | PJM |
| Filed | June 1, 2026 (ERM #26-097) | June 1, 2026 |
| Tariff effective | July 16, 2026 | July 16, 2026 |
| Dispatch window | 4–6 p.m. weekdays, Jun–Sep | 4–6 p.m. weekdays, Jun–Sep |
| Launch | 2027 | 2027 |
| What it pays | Not published | $10 per kW-Season |
| Program term | Not published | Five consecutive seasons |
| Battery rebate | $300/kWh | $300/kWh |
| Rebate supply condition | None published for SDVPP itself | Rate BESH for the life of the battery |
| Standalone battery eligible | No — solar required | No |
| Net metering credit | Supply and transmission | Supply only |
Ameren figures: DER Bulletin 2026-04, published rebate terms, and Illinois Commerce Commission filing records, all as of August 3, 2026. ComEd figures are drawn from its own separately filed tariff and are provided for contrast only — they are not Ameren's terms. Full detail on ComEd's program is on our ComEd virtual power plant guide, and the ComEd rebate's conditions are on ComEd's battery storage rebate.
Two rows there are worth reading together. Ameren credits both supply and transmission for excess solar generation where ComEd credits supply only, and Ameren has attached no permanent rate commitment to its program. On the published record so far, Ameren's terms are the friendlier of the two — with the significant caveat that the terms carrying the most risk are the ones Ameren has not published.
Is this the same as Ameren's thermostat program?
No, and search results conflate them constantly. Ameren has had a residential demand-response program built around smart thermostats since 2024, run through third-party partners. Rider SDVPP is a separate, newer program built around home batteries, created by the 2026 grid law and launching in 2027.
The practical difference is what gets dispatched. A thermostat program adjusts your cooling for a couple of hours. A battery program draws stored electricity from equipment you own. They pay differently, they enroll differently, and being in one does not put you in the other — Ameren states that SDVPP enrollment does not automatically add or remove you from other demand response programs.
If you are trying to compare what each is worth, Peak Time Rewards currently pays $1.05 per kWh reduced during called events for the winter 2025-26 and spring 2026 seasons. That is a known figure today, where the virtual power plant's rate is not.
When does it start, and how do I enroll?
Service begins in 2027. Ameren has not published an enrollment date or process, beyond stating that enrollment is coordinated by Ameren together with an authorized third-party provider. There is nothing to sign up for today.
What is worth doing now depends on where you are. If you already have solar and are weighing a battery, the rebate rules are live and the enrollment requirement applies to your application — confirm the current terms with Ameren directly before you commit. If you do not have solar, the battery rebate is not available to you regardless of when the program opens, so the useful first step is finding out whether solar works on your roof.
Be sceptical of anyone quoting you a virtual power plant payment right now. Ameren has not published a rate. A number presented as what the program will pay is either ComEd's figure relabelled, or an estimate presented as a fact.
Our commitment: we update this page the day Ameren publishes Rider SDVPP — the rate, the term, the enrollment process and the exit terms — and we will say plainly what changed.
Terms used on this page
Utility filings use vocabulary that rarely appears anywhere else. These are the terms that matter for understanding what Ameren has and has not committed to.
- Rider SDVPP
- Ameren Illinois' Scheduled Dispatch Virtual Power Plant tariff — the document that sets the rules and payment for the battery program. It sits at Sheet No. 68 of Ameren's Illinois tariff and had not been published as of August 3, 2026.
- Energy storage system (ESS)
- The term Ameren's rebate documents use for a home battery. Ameren's rebate is calculated on the inverter connecting the storage, at $300 per kWh for residential customers.
- Smart inverter rebate
- Ameren's one-time rebate on the inverter used to interconnect a generator or storage system — $300 per kW-DC for solar and $300 per kWh for storage on residential rate classes.
- DER Bulletin
- A numbered notice Ameren issues to distributed-energy trade allies. Bulletin 2026-04 is the document establishing the SDVPP enrollment requirement for storage rebates as of June 1, 2026.
- ERM filing
- An electronic rate-matter filing at the Illinois Commerce Commission. Ameren's Rider SDVPP filing is ERM #26-097, submitted June 1, 2026.
- "Do Not Suspend the Filing"
- A Commission disposition meaning it has chosen not to suspend a tariff, allowing it to take effect on the utility's requested date. It is not an affirmative approval order.
- Dispatch window
- The hours during which the utility may draw on an enrolled battery. Ameren's is 4 to 6 p.m. on weekdays, June through September, for behind-the-meter residential systems.
- Basic Generation Service (BGS)
- Ameren's default electricity supply, used by customers who have not chosen an alternative supplier or a time-based rate. SDVPP enrollment does not change it.
- Peak Time Rewards
- Ameren's existing demand-response programme, paying a bill credit per kilowatt-hour reduced during called events. It remains available alongside SDVPP.
- Rate BESH
- ComEd's hourly pricing rate, which ComEd requires battery-rebate recipients to take for the life of the storage facility. Ameren has published no equivalent requirement.
Ameren virtual power plant and rebate FAQ
What is Ameren's Rider SDVPP?
It is Ameren Illinois' Scheduled Dispatch Virtual Power Plant, a program that will pay customers to let Ameren draw on their home batteries between 4 and 6 p.m. on weekdays from June through September. It was created under Public Act 104-0458 and service begins in 2027.
How much is Ameren's battery rebate?
$300 per kWh for residential and small commercial customers on rate classes DS-1 and DS-2, and $250 per kWh for larger commercial classes. On a 13.5 kWh home battery that is roughly $4,050. The rebate is calculated on the inverter connecting the storage, not on total project cost.
How much is Ameren's solar rebate?
$300 per kW-DC on the smart inverter used to interconnect a generator, for residential and small commercial rate classes DS-1 and DS-2. On a 10 kW-DC array that is roughly $3,000. Larger commercial classes receive $250 per kW-DC.
What are the requirements for Ameren's storage rebate?
You must be an Ameren Illinois distribution customer on an eligible rate class, the storage must be charged by an on-site renewable generator, the system cannot exceed 5,000 kW, and per DER Bulletin 2026-04 you must enroll in the SDVPP program. That last requirement does not appear on Ameren's customer-facing rebate page.
Do I have to join the VPP to get Ameren's battery rebate?
Ameren's DER Bulletin 2026-04 states that as of June 1, 2026, energy storage rebate eligibility is linked to participation in a utility-managed virtual power plant program and that customers must enroll in an SDVPP program to be eligible. Ameren's customer-facing rebate page does not mention this requirement, so confirm it with Ameren in writing before relying on the rebate.
Can I get Ameren's battery rebate without solar?
No. Ameren's published terms state that any energy storage system included in a smart inverter rebate application must be charged by an on-site generator using a renewable resource. A standalone battery does not qualify, so generation on the property is a precondition for the $300 per kWh storage rebate.
How much does Ameren's virtual power plant pay?
Ameren has not published a rate. Illinois law sets a floor of at least $10 per kW of average dispatch, and ComEd set its own rate at $10 per kW-Season, but ComEd's figure is not Ameren's. Any page quoting a specific Ameren payment is using ComEd's number or an estimate.
When does Ameren's virtual power plant start?
Service begins in 2027. Ameren has not published an enrollment date or process beyond stating that enrollment is coordinated by Ameren and an authorized third-party provider, so there is nothing to sign up for yet.
Does joining change my electricity supplier or rate?
No. Ameren states that enrollment does not by itself change your existing electric supply option and is not a supplier switch, retail rate change, or replacement for other demand response offerings. You can remain on Basic Generation Service, Real Time Pricing or Power Smart Pricing.
Can I still use Peak Time Rewards if I join?
Yes. Ameren states that SDVPP enrollment does not automatically enroll you in or remove you from other demand response programs, and that customers may remain eligible for Peak Time Rewards and Peak Time Savings. Participation is additive.
How is Ameren's program different from ComEd's?
Both filed on June 1, 2026 under the same statute, with identical dispatch windows and 2027 launches. The differences are that ComEd has published its rate and term while Ameren has not, ComEd's battery rebate requires Rate BESH for the life of the battery while Ameren has published no equivalent condition, and Ameren credits both supply and transmission for excess solar generation where ComEd credits supply only.
Is this the same as Ameren's thermostat program?
No. Ameren has run a residential thermostat demand-response program since 2024 through third-party partners. Rider SDVPP is a separate battery program created by the 2026 grid law. Being in one does not enroll you in the other.
What times can Ameren use my battery?
Between 4 and 6 p.m. on weekdays, June through September, for behind-the-meter residential systems. Community solar and other front-of-meter resources have a window of 4 to 7 p.m. over the same months.
Was Ameren's virtual power plant approved by the ICC?
Not by an approval order. Ameren's filing, ERM #26-097, appeared as Agenda Item E-3 at the Illinois Commerce Commission's Regular Open Meeting on June 24, 2026, where the disposition was "Do Not Suspend the Filing." The Commission declined to suspend the tariff, which allowed it to take effect on July 16, 2026.
Related answers
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Free eligibility check · ComEd & Ameren · No obligationThe Day Company is an Illinois solar and battery information resource and a lead-generation business. We are not affiliated with Ameren Illinois. Information you submit may be used by our review team and authorized partners to contact you about your request. Checking eligibility creates no obligation, and no figure on this site is a quote or a guarantee.
Sources
- Ameren Illinois — DER Bulletin 2026-04 — the dispatch window, the 2027 launch, the storage-rebate enrollment requirement effective June 1, 2026, and the statement that SDVPP does not change a customer's supply option
- Ameren Illinois — customer-owned solar, rebates and net metering (checked August 3, 2026) — the $300/kW and $300/kWh rebate amounts, the on-site renewable generation requirement for storage, and the post-2025 crediting rules
- Ameren Illinois — residential rates and tariffs (checked August 3, 2026) — the Ill. C.C. No. 1 tariff index, which still lists Sheet No. 68 as "For Future Use"
- Citizens Utility Board — solar and storage rebates in Illinois (March 2026) — independent summary of both utilities' rebate terms and the 5,000 kW system limit
- Illinois Commerce Commission — filing ERM #26-097, Ameren Illinois, filed June 1, 2026, effective July 16, 2026; Ill. C.C. No. 1 Sheet No. 68 and Original Sheet Nos. 68.001–68.005; Agenda Item E-3, Regular Open Meeting of June 24, 2026, disposition "Do Not Suspend the Filing"
- Public Act 104-0458, the Clean and Reliable Grid Affordability Act, enacted January 8, 2026, amending Section 16-107.6(e) of the Illinois Public Utilities Act — the statutory basis for the program and the minimum compensation floor
How to cite this page: The Day Company, "How does Ameren's virtual power plant program work?", theday.company/answers/ameren-virtual-power-plant, last reviewed August 3, 2026.
Changelog: August 2026 — v1 published.
Update triggers: this page is revised the day Ameren publishes the Rider SDVPP tariff text — currently absent from its own rate library, where Sheet No. 68 still reads "For Future Use" — and whenever Ameren changes its rebate terms, publishes an enrollment date, or reconciles the difference between DER Bulletin 2026-04 and its customer-facing rebate page.