- Oct 13, 2026: We rechecked SunStrong’s contact page. The phone number and logins below still match it.
- Feb 27, 2026: Connecticut’s attorney general sent SunStrong a demand for records after about 65 complaints.
- Early 2026: SunStrong says it took on part of PosiGen’s old accounts.
- Sep 2025: SunStrong began running former Sunnova accounts for the new owner, Solaris.
- 2025: SunStrong says it closed a $900 million deal backed by more than 64,000 home solar systems.
Who is SunStrong Management?
SunStrong runs solar accounts for the owners of the systems. It doesn’t sell or install solar. It sends the bills and handles service. It started in 2024, when SunPower went bankrupt.
- SunPower files for bankruptcy. SunStrong takes over its leases.
- Sunnova files for bankruptcy.
- A buyer group named Solaris buys Sunnova and puts SunStrong in charge of its accounts.
- Connecticut’s attorney general demands SunStrong’s records in a probe.
Where do I log in or get help?
It depends on who first sold you your system, and how you paid for it. Tap the one that fits you.
Log in at sunstrong.
SunStrong doesn’t service SunPower systems bought with cash or a loan. Call a licensed local installer. Your panel and inverter makers may still cover their own parts.
Who covers your partsLog in at account.
SunStrong manages part of PosiGen’s old accounts. Others went to different companies. Your latest bill shows who to contact.
PosiGen guideFormer SunPower owners often watch their systems in the SunStrong Connect app. App help goes through an email address on SunStrong’s contact page.
Contact detailsThe company name on your bill or bank charge tells you who services your account. Still stuck? Start with your original contract.
Contact detailsWhat is SunStrong’s phone number and login?
SunStrong uses a different door for each group. Use the one for the company that first sold you solar.
Bought a SunPower system with cash or a loan? SunStrong doesn’t repair those. Call a licensed local installer.
Will SunStrong fix my solar system?
Only if you lease it. SunStrong fixes the systems it runs for their owners. If you own your SunPower system, you need to find your own repair help.
- Request service in your portal.
- Keep a record of every request.
- Check your contract’s repair terms.
- Call a licensed local installer.
- Ask the panel and inverter makers what their warranties cover.
- Keep receipts for every repair.
See which equipment makers still back old SunPower parts in our SunPower guide.
Is SunStrong under investigation, and how do I complain?
Yes. On February 27, 2026, Connecticut’s attorney general demanded SunStrong’s records after about 65 complaints. The office said they involve warranties not honored, slow or no replies, and a $10 monthly fee for system production data.
- Write to SunStrong firstUse your portal or email. Save the date, your account number and every reply.
- Tell your state attorney generalEvery state has a consumer complaint office. Find yours in the national directory.
- Loan problem? Tell the CFPBA U.S. agency takes complaints about loans and bills.
Subject: Service request and complaint, account [account number] To SunStrong Management: I am writing about my solar account, number [account number], at [service address]. The problem: [Say what is wrong, such as a broken system, a billing error or a fee you did not agree to.] It started on or about [date]. I contacted you on [dates] and have not received a fix or an answer. Please fix this or explain your decision in writing within 30 days. Please also tell me which part of my contract allows any charge I am disputing. I am keeping copies of this letter and your replies. [Your name] [Phone and email] [Date]
Send it through your portal or by mail, and keep a dated copy. If SunStrong doesn’t fix it, the same letter backs up a complaint to your attorney general.
Find your state’s office in the national directory. For loans, use the federal complaint site.
Why is SunStrong billing me, and should I pay?
If you lease from SunPower or Sunnova, the owner of your contract hired SunStrong to bill you. Your contract still counts, so keep paying on time.
- Check the name on the billIt shoudl match SunStrong or the Sunnova account site.
- Pay only through the portalUse the official login, not a link from a text or call.
- Check your autopayMake sure your payment still goes through after any change.
Can I sell my home with a SunStrong lease?
Usually, yes. Your lease contract explains how to move it to a buyer or pay it off. Start early, because buyers and their lenders often want the paperwork before closing.
- Find your leaseLook for the transfer or buyout section.
- Ask SunStrong earlyRequest transfer or payoff paperwork through your portal.
- Tell your agentShare the lease details with your agent and the buyer early.
How do I avoid SunStrong scams?
When accounts change hands, fakes follow. They call or text, claim to be SunStrong, and ask for money, card numbers or your login.
- Texts with a payment linkA text that looks like SunStrong can be fake. Log in yourself instead of tapping a link.
- A “new” SunStrong numberUse only the numbers on SunStrong’s own contact page or your bill.
- Remote access requestsDon’t let a caller install software or log in to your accounts for you.
SunStrong Management questions, answered
Who is SunStrong Management?
SunStrong Management runs solar accounts for the owners of the systems. It took over SunPower’s leases after SunPower went bankrupt in 2024. Since 2025, it also runs former Sunnova accounts for their new owner, Solaris. It doesn’t sell or install solar.
Is SunStrong Management legit?
Yes. SunStrong is a real company. It runs more than 500,000 old SunPower and Sunnova accounts. In 2026, Connecticut opened a probe into it after about 65 complaints. To be safe, use only its official sites and phone numbers. Keep notes on every call and message.
What is SunStrong’s phone number?
Former Sunnova customers can call 866-786-6682, which spells 866-SUNNOVA. SunStrong doesn’t list a phone number for former SunPower lease customers. They use the online portal at sunstrong.youronlineaccount.com and the email support listed on SunStrong’s contact page. Keep your account number handy for the call.
How do I log in to my SunStrong account?
Former SunPower lease customers log in at sunstrong.
Why is SunStrong billing me instead of SunPower or Sunnova?
Both companies went bankrupt. SunStrong took over SunPower’s leases, and it now runs former Sunnova accounts for their new owner. Your contract still applies, so keep paying on time. Check that each bill matches your account before you pay. If a bill looks wrong, ask in writing.
Does SunStrong fix SunPower systems?
Only leased ones. SunStrong says it doesn’t fix SunPower systems that owners bought with cash or a loan. Those owners should call a licensed local installer. They should also check if the panel and inverter makers still cover their own parts.
Is SunStrong part of SunPower?
No. SunStrong began as a team-up between the old SunPower and an investment firm. Today it runs on its own. The company now called SunPower is a different business that bought the name in 2024 but not the old leases.
Did SunStrong take over Sunnova?
Not exactly. A buyer group called Solaris bought most of Sunnova in 2025. Solaris put SunStrong in charge of running Sunnova’s customer accounts. So SunStrong handles your service and billing, while Solaris owns the business. Your contract terms stay the same.
Does SunStrong manage PosiGen accounts?
Some of them. SunStrong says it now manages a portion of former PosiGen customers and systems. Other PosiGen accounts went to different companies. Check your latest bill to see who services your system, and see our PosiGen guide for more.
Is SunStrong under investigation?
Yes. On February 27, 2026, Connecticut’s attorney general asked SunStrong for its records after about 65 complaints. They involve warranties not honored, slow replies and a $10 monthly fee for production data, the office said. Keep copies of every bill and message. You can also file your own complaint with your state’s attorney general.
How do I file a complaint about SunStrong?
First, write to SunStrong through your portal or email and save every reply. If that fails, file a complaint with your state’s attorney general. For loan or bill problems, you can also file with the federal consumer finance agency, the CFPB. Save a copy of each letter and email.
What is the SunStrong Connect app?
SunStrong Connect is SunStrong’s app for watching your system. Lots of former SunPower owners rely on it. If the app fails, use the app-support email on SunStrong’s contact page. Your system can still make power while the app is down.
Where is SunStrong Management located?
SunStrong lists its mailing address as 9229 Waterford Centre Blvd, Suite 200, in Austin, Texas. It serves customers across the country. It says it works in more than 50 U.S. markets. Most help happens online through its customer portals, so you don’t need to visit an office.
Will my solar lease change under SunStrong?
Your lease terms don’t change just because a new company runs your account. Your monthly payment and the rules in your contract still apply. Keep your contract handy, and compare each bill to it. If something looks different, ask SunStrong in writing.
Is SunStrong going out of business?
There’s no sign of that. SunStrong says it closed a $254 million deal in 2025 and a $900 million deal backed by more than 64,000 home solar systems. That isn’t a promise of good service. But it shows investors are still putting money behind it.
Who handles some SunPower loan payments for SunStrong?
A Charlotte TV station found SunStrong uses a company called Launch to process payments and handle customer service for some loans. Before paying, make sure the payee matches your statement. If something looks off, call the number on SunStrong’s website.
How will I know if my contract moved to SunStrong?
SunStrong told CBS News that customers get an email when their contracts move to SunStrong. Sunnova’s closure page also points customers to their SunStrong welcome email for contact details. Check your spam folder if you haven’t seen it. Call SunStrong if you still aren’t sure.
Guides for the accounts SunStrong took over
Came from another company? Find it on our list of 12 failures.
Sources and updates
Sources (18)
- SunStrong Management, Contact SunStrong: portals, phone, repair policy and mailing address.
- SunStrong Management, Company: founded in 2024, about 6 gigawatts under management, 110,000+ SunPower and 400,000+ Sunnova customers, and part of PosiGen’s.
- Sunnova Energy, via Business Wire, Solaris completes acquisition of Sunnova, September 2025: SunStrong as asset manager.
- pv magazine USA (trade news), Solaris acquires Sunnova assets, September 2025: SunStrong’s start as a joint venture.
- Connecticut Attorney General, New developments to hold solar industry accountable, 2026: the SunStrong investigation.
- National Association of Attorneys General (nonprofit), Find my AG: where to file a state complaint.
- Consumer Financial Protection Bureau, Submit a complaint: loan and billing complaints.
- U.S. Courts, Official Form 410, Proof of Claim and instructions.
- Federal Register (Judicial Conference of the United States), Revision of Certain Dollar Amounts in the Bankruptcy Code: the $3,800 consumer deposit priority.
- U.S. Department of Labor, Plant closings and layoffs (WARN Act): layoff notice rules.
- Administrative Office of the U.S. Courts, PACER: federal court case search.
- U.S. Securities and Exchange Commission, EDGAR full-text search: public company filings.
- SunStrong Management, Home page: $254 million and $900 million deals in 2025.
- Sunnova, Sunnova closure and support resources: SunStrong servicing, GoodLeap install help, welcome email.
- WSOC-TV (Charlotte news), Homeowner upset with solar company: SunStrong uses Launch to process some loan payments.
- Hartford Business Journal (news), Attorney general’s office details latest enforcement against solar companies in CT: the February 27 demand to SunStrong, about 65 complaints and what they involve.
- KVIA, sharing a CBS News report, Thousands struggling to get solar panels fixed after company’s bankruptcy, May 14, 2025: SunStrong says it will let customers defer payments until their systems work again.
- CBS News Texas, Solar bust: bankruptcies leave customers with broken panels: about 100 closures, UCC liens, SunStrong transfer emails.
Changelog · last updated October 13, 2026 · 2 updates
- October 13, 2026: Moved to theday.company/solar-bankruptcy/sunstrong-customer-service; the old address forwards here. Added a quick decision box and next-step links. Put every SunStrong phone number and login in one card with a copyable address, added Connecticut’s February 27, 2026 records demand and what the complaints involve, a free complaint letter, SunStrong scam signs and its 2025 statement on payment deferrals.
- October 6, 2026: Guide published with SunStrong’s contact details by customer group, its repair policy, the Connecticut investigation and how to complain.
How to cite this page: The Day Company, “SunStrong Management: who they are, how to reach them, and your rights”, updated October 13, 2026, https://theday.company/solar-bankruptcy/sunstrong-customer-service.
This guide explains public records in plain language. It is not legal advice. For your own situation, talk to a bankruptcy lawyer or legal aid. The Day Company is not tied to SunStrong Management, any buyer, servicer, lender or installer, and no company can pay for placement in this guide.