SunStrong Management: What Former Sunnova and SunPower Customers Need to Know

As of November 10, 2026. General information, not legal advice. SGI is not a law firm. Your contract and your state's law control. Talk to a licensed attorney before you stop payments, dispute a debt or file a legal claim.

If your solar bill suddenly comes from "SunStrong," you're not alone. Here's who SunStrong is, which accounts it handles, what complaint and regulator records show, and what you can do.

The short answer

• SunStrong Management LLC is an asset manager and servicer. It says it was "formed to manage solar assets otherwise abandoned in bankruptcy" in Q3 2024 ^[1]. Its homeowners page lists monthly billing, maintenance and repairs, production monitoring, home-sale transfers and customer support as covered services ^[2]. Sunnova describes it as a "full-service asset manager" ^[8].
• Its portfolio includes former SunPower and Sunnova customers. SunStrong says it took on 110k+ former SunPower customers and assets in Q3 2024, 400k+ former Sunnova customers and assets in Q3 2025, and PosiGen assets in Q1 2026 ^[1].
• It says your contract terms don't change, apart from escalators already in your contract and sales tax changes ^[3].
• Regulators are watching. Connecticut's Attorney General announced an investigation into SunStrong on March 17, 2026, after about 65 complaints ^[11].
• Complaint volume is high. As of November 10, 2026, BBB shows 1,418 complaints against SunStrong in the last 3 years and 1,269 in the last 12 months ^[14]. The CFPB database shows 162 complaints under SunStrong's CFPB company name, all filed since April 2026 ^[15].

Who is SunStrong Management?

SunStrong describes itself as "an operations and asset management company that sits between asset owners… and the real world, where infrastructure systems need servicing and customers need support" ^[1]. It works for the investors that own solar contracts, not for the original installer. BBB lists the business start date as August 12, 2024 ^[14].

Sunnova accounts. Sunnova's assets were sold in its Chapter 11 case to Solaris Assets, LLC. The sale moved Sunnova's management and servicing business to SunStrong ^[9]. Sunnova's site says SunStrong "has assumed responsibility for servicing and managing most in-service customer systems" ^[8].

SunPower accounts. The current SunPower Inc. (formerly Complete Solaria) says it did not take on customer PPAs, leases or systems installed before September 30, 2024. Lease and PPA customers are told to contact their financier or SunStrong. Cash and loan customers are told to contact their lender ^[10].

Other portfolios. SunStrong's account page also lists PosiGen and GoodLeap billing portals ^[4].

Which portal and contact applies to you

SunStrong says "where you pay your bill depends on which company originally managed your solar system" ^[4]:

Contact (from SunStrong's pages): (833) 514-1858; SunStrong Management, PO Box 91910, Sioux Falls, SD 57109-1910; secure messaging inside your online account ^[7]; and the online Customer Service Inquiry form ^[5]. For SunPower customers, the form links to a SunStrong requests portal on Zendesk for sale and refinance requests ^[5]. That portal's home page lists categories such as "Refinance, Ownership Transfers & Home Sales" and "Want to Payoff your System?" ^[16].

What SunStrong does and doesn't cover

• Payments and terms: "There will be no changes to your existing financing agreement terms, aside from any previously expected escalators noted in your contract and/or changes to sales tax" ^[3].
• Sales tax: SunStrong says some former owners or servicers "did not charge the required sales tax" and that it now collects it ^[3]. If your bill went up for this reason, ask SunStrong in writing which tax and which jurisdiction applies.
• Maintenance: SunStrong's form says it "does not provide maintenance services for Loan customers or customers who outright own their systems (e.g. Cash purchase or paid off Lease/PPA)" ^[5]. Its maintenance page says cash and loan customers "that are not serviced by SunStrong" should contact local dealers, installers or repair companies. It lists some, without endorsing them ^[6].
• Warranties and production guarantees: before you rely on a warranty or production guarantee in your original contract, ask SunStrong in writing which terms it will honor.

Complaints and regulator actions

Connecticut Attorney General (March 17, 2026). The AG announced an investigation into SunStrong "following dozens of consumer complaints." The AG's office and the Department of Consumer Protection had jointly received "approximately 65 consumer complaints." The release says consumers complained that SunStrong is "failing to uphold warranties, not responding to consumer complaints, and charging consumers a $10 monthly fee to receive data regarding their solar system's production." A civil investigative demand was sent on February 27, 2026 ^[11]. These are allegations under investigation, not findings.

News coverage. - WFSB (CT) reported on May 4, 2026 that the AG had received "more than 60 complaints." It quoted homeowners describing repeated payment-due notices and new entries on their credit reports ^[12]. - WCVB (Boston) reported on February 20, 2026 that Massachusetts homeowners said systems went unrepaired for months while lease charges continued ^[13].

These are individual accounts reported by journalists. They don't show how common any problem is.

BBB (checked Nov 10, 2026). SunStrong Management LLC (Houston profile): - 1,418 complaints in the last 3 years, 1,269 in the last 12 months - BBB rating D+ - Not BBB Accredited ^[14]

BBB says displayed complaints "might not represent all complaints filed with BBB."

CFPB Consumer Complaint Database. Under "GF SunStrong Management Holdings, LLC," the API returned 162 complaints total, all received from April 2026 onward. The top states were CA (53), FL (17) and NJ (15). The top issues were "Incorrect information on your report" (31) and "Attempts to collect debt not owed" (30) ^[15]. The CFPB notes that its database "is not a statistical sample" and that complaints "are not representative of all consumers' experiences" ^[21].

Court records. A federal case, Dalton v. SunStrong Management LLC, No. 3:25-cv-01960 (S.D. Cal.), was removed to federal court on July 31, 2025. CourtListener lists it as a consumer credit case under the Fair Debt Collection Practices Act. It shows the case as terminated on September 9, 2026 ^[17].

How to escalate a problem with SunStrong

1. Write to SunStrong first. Use the Customer Service Inquiry form ^[5] or secure messaging in your account ^[7]. Include your original contract number (for example, your "Sunnova System ID #" or "SunPower Contract #," which the form asks for) ^[5]. Keep copies and dates.
2. Credit reporting errors. The CFPB says you have the right to dispute errors on your credit report. It says that fixing an error generally means contacting both the credit reporting company and the company that supplied the information ^[22].
3. CFPB complaint. Submit at consumerfinance.gov/complaint. The CFPB says it sends complaints to companies for a response and that most companies respond within 15 days ^[23].
4. Your state Attorney General. Connecticut residents can reach the AG's consumer line at 860-808-5318 or attorney.general@ct.gov, as listed in the March 2026 release ^[11]. For other states, USAGov lists each state's consumer protection office ^[24].
5. Loan disputes. If your contract is a loan and the system never worked, your loan may include the FTC Holder Rule notice, which lets you raise claims against the seller with the loan holder, up to amounts paid ^[20]. Ask an attorney whether it applies.
6. Don't just stop paying. SunStrong says to keep paying as usual ^[3]. Your contract sets out what happens if you miss payments, so get legal advice first.

Buyouts and payoffs

SunStrong doesn't publish a buyout or payoff formula on the pages we reviewed ^[3][5]. Its requests portal lists a "Want to Payoff your System?" category ^[16].

• Lease or PPA: your contract's purchase-option or early-buyout section controls whether you can buy out and how the price is set. Ask SunStrong in writing for an itemized quote, the contract section it relies on, and a good-through date.
• Loan: ask for a written payoff letter. Once the loan is paid, the secured party must terminate its UCC filing. Under model UCC § 9-513, for consumer goods, that's within one month of payoff or within 20 days of your authenticated demand, whichever comes first (state versions vary) ^[19].
• After a buyout or payoff, SunStrong says it doesn't maintain systems customers own outright ^[5]. Line up a local repair company ^[6].

Selling a home with a SunStrong lease or PPA

• Tell SunStrong early. Its homeowners page has a "Sell My Home" quick action ("Let us know as soon as possible if you are selling your home with solar") and lists "Home-sale transfers" under "What's Covered" ^[2].
• The inquiry form's "Sell or refinance my home" path asks for the buyer's name, phone and email, and the title company contact ^[5].
• Your options: transfer to a qualified buyer, buy out the contract, or pay off a loan ^[2][5]. For leased or PPA panels, Fannie Mae treats a "precautionary" UCC filing that covers only the equipment as "a minor impediment to title." The buyer's lender must include the monthly lease payment in the debt-to-income ratio unless the agreement meets specific fixed-energy and production-guarantee conditions ^[18].
• See our full guide: Selling a house with a solar lien.

How Unstuck Solar can help

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FAQ

Is SunStrong legit? It's a real company that services solar contracts acquired from bankrupt companies, including Sunnova and SunPower ^[1][9][10]. Connecticut's AG announced an investigation into it in March 2026 ^[11], and it has a D+ BBB rating ^[14].

Do I have to pay SunStrong? If SunStrong now services your contract, SunStrong says to keep paying under your existing terms ^[3]. If you think the debt is wrong, dispute it in writing and talk to an attorney before you stop.

Why did my bill go up after SunStrong took over? SunStrong points to contractual escalators and sales tax changes. It says some prior servicers didn't charge required sales tax ^[3]. Ask for a written breakdown.

Will SunStrong fix my panels? That depends on your contract type. SunStrong says it doesn't provide maintenance for loan customers or for systems owned outright ^[5].

How do I sell my house with a SunStrong lease? Notify SunStrong early, submit the sale or refinance request with your buyer and title company details, and decide between a transfer and a buyout ^[2][5].

Is there a SunStrong lawsuit? The one federal case we reviewed, Dalton v. SunStrong Management LLC, is listed as terminated as of September 9, 2026 ^[17]. If you think you have a claim, talk to a consumer attorney.

How many complaints does SunStrong have? BBB: 1,418 in 3 years and 1,269 in 12 months as of November 10, 2026 ^[14]. CFPB: 162 under its CFPB company name ^[15]. These numbers change over time.

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Not legal advice. SGI is not a law firm. Figures and statuses are as of November 10, 2026 and can change. Consult a licensed attorney about your situation.

Sources

1. SunStrong Management, "Company" (timeline): https://sunstrongmanagement.com/company/
2. SunStrong Management, Homeowners ("Sell My Home," "Home-sale transfers"): https://sunstrongmanagement.com/homeowners/
3. SunStrong Management, Help Center: https://sunstrongmanagement.com/help-center/
4. SunStrong Management, "Your account": https://sunstrongmanagement.com/homeowners/account/
5. SunStrong Management, Customer Service Inquiry form: https://sunstrongmanagement.com/customer-service-inquiry/
6. SunStrong Management, "Solar maintenance services": https://sunstrongmanagement.com/solar-maintenance-services/
7. SunStrong customer portal, Contact Us: https://sunstrong.youronlineaccount.com/pub/ContactUs.aspx
8. Sunnova, "Sunnova Closure and Support Resources": https://www.sunnova.com/reading-lists/why-sunnova/
9. Davis Polk, "Sunnova section 363 sale of substantially all its assets" (Sept. 9, 2025): https://www.davispolk.com/experience/sunnova-section-363-sale-substantially-all-its-assets
10. SunPower Inc., "SunPower Corporation Bankruptcy and What You Need to Know": https://us.sunpower.com/acquisition-announcement
11. Connecticut Attorney General, "Attorney General Tong Announces New Developments to Hold Solar Industry Accountable" (Mar. 17, 2026): https://portal.ct.gov/ag/press-releases/2026-press-releases/attorney-general-tong-announces-new-developments-to-hold-solar-industry-accountable
12. WFSB, "I-Team: Solar bankruptcies force CT homeowners to do business with new company, AG investigating" (May 4, 2026): https://www.wfsb.com/2026/05/04/i-team-solar-bankruptcies-force-ct-homeowners-do-business-with-new-company-ag-investigating/
13. WCVB, "After bankruptcy, solar panel customers say they're left in the dark" (Feb. 20, 2026): https://www.wcvb.com/article/after-bankruptcy-solar-panel-customers-say-theyre-left-in-the-dark/70422303
14. BBB, Sunstrong Management LLC profile and complaints (viewed Nov. 10, 2026): https://www.bbb.org/us/tx/houston/profile/asset-management/sunstrong-management-llc-0915-90076395/complaints
15. CFPB Consumer Complaint Database API, company "GF SunStrong Management Holdings, LLC" (queried Nov. 10, 2026): https://www.consumerfinance.gov/data-research/consumer-complaints/search/api/v1/?company=GF%20SunStrong%20Management%20Holdings%2C%20LLC
16. SunStrong Requests Portal (linked from the inquiry form): https://sunstrong.zendesk.com/hc/en-us
17. CourtListener, Dalton v. Sunstrong Management LLC, 3:25-cv-01960 (S.D. Cal.): https://www.courtlistener.com/docket/70990452/dalton-v-sunstrong-management-llc/
18. Fannie Mae Selling Guide B2-3-04: https://selling-guide.fanniemae.com/sel/b2-3-04/special-property-eligibility-considerations
19. UCC § 9-513, Cornell LII: https://www.law.cornell.edu/ucc/9/9-513
20. FTC Holder Rule, 16 C.F.R. § 433.2, Cornell LII: https://www.law.cornell.edu/cfr/text/16/433.2
21. CFPB, Consumer Complaint Database (about the data): https://www.consumerfinance.gov/data-research/consumer-complaints/
22. CFPB, "How do I dispute an error on my credit report?": https://www.consumerfinance.gov/ask-cfpb/how-do-i-dispute-an-error-on-my-credit-report-en-314/
23. CFPB, Submit a complaint: https://www.consumerfinance.gov/complaint/
24. USAGov, State consumer protection offices: https://www.usa.gov/state-consumer