Enphase Energy capacity constrained and sold out in Q4

November 7, 2018
Facebook
Twitter
LinkedIn
Reddit
Email
The company is also assembling its latest IQ 7 microinverter at a new production line in Mexico, via its OEM partner Flex, which is expected to start in the second quarter of Q2 2019. Image: Enphase/LG Electronics

Leading PV microinverter supplier Enphase Energy reported lower than expected revenue for the third quarter of 2018, citing continued critical component shortages for the flat sales and shipments.

Enphase said that component supply shortages (high-voltage transistors) had constrained quarterly revenue by more than US$10 million in the quarter and was technically sold out in the fourth 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

Badri Kothandaraman, President and Chief Executive Officer of Enphase Energy, said in the earnings call, “The customers continue to appreciate our differentiated products, quality, and service initiatives. Our strong balance sheet was instrumental in driving increased customer demand. Our biggest challenge in Q3 was meeting this additional demand. We experienced supply shortages that constrained our revenue by more than $10 million. For Q4, we are seeing strong demand and are fully booked already. We expect to be supply constrained in Q4 as well”.

The company is also assembling its latest IQ 7 microinverter at a new production line in Mexico, via its OEM partner Flex, which is expected to start in the second quarter of Q2 2019. 

This is to both avoid the US Section 301 tariffs on a wide range of goods made in China and also to better serve its module manufacturing customers such as JinkoSolar and LG Electronics a key new client SunPower as AC modules should ramp in the same timeframe that helps reduce cycle times and streamline its inventory control. 

Enphase shipped a total of 204MW (DC), or approximately 665,000 microinverters in the third quarter of 2018, compared to 203MW (DC), or 675,000 microinverters in the second quarter of 2018.

Enphase shipped a total of 665,000 microinverters in the third quarter of 2018.
Enphase shipped a total of 204MW (DC) in Q3.

Financials

Enphase reported third quarter revenue of US$78.0 million, including a US$3.3 million milestone achievement from a partner on its next-gen IQ 8 technology for use by an overseas customer that remains undisclosed.

Enphase reported third quarter revenue of US$78.0 million, including a US$3.3 million milestone achievement from a partner on its next-gen IQ 8 technology.

GAAP gross margin in the quarter was 32.4%, compared to 29.9% in the previous quarter. 

The company expects revenue in the fourth quarter of 2018 to be in the range of US$80.0 million to US$90.0 million with a GAAP gross margin to be within a range of 31% to 34%.

Management noted that the component shortages would ease early next year due to new supplier partnerships. Enphase is now the exclusive module level power electronics (MLPE) supplier for SunPower’s residential business in the US and expects volume shipments of IQ 7XS microinverters in the fourth quarter of 2018 and an acceleration of the ramp throughout 2019, which is expected to improve revenue projections in 2019. 

16 June 2026
Napa, USA
PV Tech has been running PV ModuleTech Conferences since 2017. PV ModuleTech USA, on 16-17 June 2026, will be our fifth PV ModulelTech conference dedicated to the U.S. utility scale solar sector. The event will gather the key stakeholders from solar developers, solar asset owners and investors, PV manufacturing, policy-making and and all interested downstream channels and third-party entities. The goal is simple: to map out the PV module supply channels to the U.S. out to 2028 and beyond.
13 October 2026
San Francisco Bay Area, USA
PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 13-14 October 2026 is our third PV CellTech conference dedicated to the U.S. manufacturing sector. The events in 2023, 2024 and 2025 were a sell out success and 2026 will once again gather the key stakeholders from PV manufacturing, equipment/materials, policy-making and strategy, capital equipment investment and all interested downstream channels and third-party entities. The goal is simple: to map out PV manufacturing in the U.S. out to 2030 and beyond.

Read Next

February 24, 2026
Wooderson Solar Development Co has secured federal environmental approval for a 450MW solar PV power plant with 3,600MWh of co-located battery energy storage in Queensland, Australia.
February 23, 2026
GameChange Energy has acquired the electrical balance-of-system division of Terrasmart, a US provider of tracker, racking and wiring solutions.
February 23, 2026
Developer FRV is to hybridise a swathe of its Spanish PV fleet with batteries as part of a wider storage push in the country.
February 23, 2026
Enel has acquired an 830MW portfolio of operating solar and wind assets in the US from investment firm Excelsior Energy Capital.
February 20, 2026
NTPC has commissioned 165MW of solar capacity at its 1.25GW Khavda-II solar project in Gujarat.
February 20, 2026
Microsoft met all of its electricity demand with renewables in 2025 and has said it will continue to do so through 2030.  

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