SunPower sells former SolarBridge microinverter business to rival Enphase

Facebook
Twitter
LinkedIn
Reddit
Email
Enphase’s AC module customers include key high-efficiency module rivals to SunPower in the US residential market, notably LG electronics. Image: Enphase

US-headquartered high-efficiency PV module producer SunPower Corp has announced a definitive agreement for leading microinverter firm, Enphase Energy to acquire SunPower’s microinverter business (formerly SolarBridge Technologies) in a staggered cash and share deal. 

SunPower acquired SolarBridge Technologies, a US-based small-cap microinverter firm for an undisclosed sum in November, 2014 and its product since became a key component within its AC module system and 'Equinox’ turnkey home solar system, included in over 80% of SunPower’s residential sales at the end of the first quarter of 2018. 

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

The deal agreed will see Enphase pay US$25 million in cash for SunPower’s microinverter business, which includes US$15 million paid when the deal is expected to close at the end of the third quarter of 2018. A further US$10 million would be due at the end of 2018. Enphase will also issue SunPower 7.5 million shares in the company when the deal closes. 

Importantly, Enphase will become the exclusive supplier of microinverters to SunPower, scrapping development of the former SolarBridge Technologies products. Instead, Enphase has developed a version of its latest platform technology for SunPower’s AC modules. 

“We are pleased to become the microinverter supplier for SunPower’s AC Modules,” said Badri Kothandaraman, president and CEO of Enphase Energy. “The IQ 7XS 320W AC microinverter in an ACM strongly complements SunPower’s high efficiency solar cells, communication and racking to create a high performance, high quality and easy-to-use Equinox Home Solar System, providing exceptional value to homeowners, dealers and architects.”

IQ 7 is Enphase’s seventh-generation microinverter platform and the IQ 7XS microinverter was said to offer 97.5% CEC efficiency and is designed specifically for the SunPower’s X Series 96-cell PV modules.  

Although microinverters offer a number of installation and PV system performance benefits, R&D spending is relatively high, compared to conventional string inverter technology.

SunPower has been making incrementally larger losses since 2015, culminating in over an US$850 million balance sheet loss in 2017. The company has been restructuring its operations for over two years in an effort to return to profitability. 

Enphase has also been struggling financially for several years and has undertaken a series of restructuring activities. The company reported a net loss of US$45 million in 2017. 

The company hopes that the deal with SunPower will generate an extra US$60 million to US$70 million in annual revenue in second half of 2019, improving margins to the range of 33% to 35%, compared to 19% in 2017. Enphase reported revenue in 2017 of US$286 million. 

Enphase’s AC module customers include key high-efficiency module rivals to SunPower in the US residential market, notably LG electronics. 

Read Next

May 13, 2026
US solar manufacturer T1 Energy has registered a record quarterly net income and adjusted EBITDA in the first quarter of 2026.
May 13, 2026
RWE has commissioned its 273.6MW Emily Solar project in Illinois, taking the developer’s operating renergy portfolio in the state to 1GW. 
May 13, 2026
Meta has signed PPAs totalling 850MW with IPP DESRI, covering solar and battery storage projects across Oklahoma, Texas and Mississippi. 
May 13, 2026
A coalition of US solar manufacturers has filed a formal request with the US Department of Commerce to initiate an anti-circumvention inquiry into c-Si PV cells and modules assembled in Ethiopia using Chinese-origin components.
May 13, 2026
Solar PV project performance in the US can be significantly impacted by the impacts of hailstorms, stowing methods and fire.
May 13, 2026
Nextpower is set to acquire the power conversion assets of Spain-based Zigor Corporation and its US subsidiary, Apex Power.

Upcoming Events

Solar Media Events
May 20, 2026
Porto, Portugal
Upcoming Webinars
May 27, 2026
9am BST / 10am CEST
Upcoming Webinars
May 27, 2026
9am BST / 10am CEST
Media Partners, Solar Media Events
June 3, 2026
National Exhibition and Convention Center (Shanghai)
Solar Media Events
June 16, 2026
Napa, USA