SunPower sells former SolarBridge microinverter business to rival Enphase

June 13, 2018
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

Premium
March 13, 2026
PV Talk: According to kWh Analytics' Jason Kaminsky, 'there’s more capital available for risk and risk exposure' in the present investment environment.
March 13, 2026
US-based tracker manufacturer FTC Solar has signed a 1GW solar tracker supply agreement with solar and storage developer Strata Clean Energy.
March 13, 2026
Current solar PV module price increases are largely dictated by five major components, according to data from Intertek CEA
March 13, 2026
Impacted by the "One Big Beautiful Bill Act", a Chinese PV company with a US factory has opted to exit the local market by selling its US subsidiary.
Premium
March 12, 2026
PV Talk: 'The US is entering a pivotal moment for domestic solar manufacturing,' Swift Solar CEO Joel Jean told PV Tech Premium this week.
March 12, 2026
Primergy, launched by Quinbrook Infrastructure Partners, has secured a US$760 million refinancing for its Gemini Solar and Storage Project in Clark County, Nevada.

Upcoming Events

Solar Media Events
March 24, 2026
Dallas, Texas
Solar Media Events
April 15, 2026
Milan, Italy
Solar Media Events
June 16, 2026
Napa, USA
Solar Media Events
October 13, 2026
San Francisco Bay Area, USA
Solar Media Events
November 3, 2026
Málaga, Spain