Solar PV microinverter company Enphase Energy lands $22.5 million in new financing

May 18, 2009
Facebook
Twitter
LinkedIn
Reddit
Email

Photovoltaics microinverter innovator Enphase Energy has landed $22.5 million in new financing. The funding round, which was led by Madrone Capital Partners, also includes new investor Bay Partners as well as existing investors Third Point Ventures, RockPort Capital Partners, and Applied Ventures. Jamie McJunkin, general partner of Madrone, will join the Enphase board.

“We are experiencing exceptional demand for our microinverter systems,” said Paul Nahi, Enphase CEO. “This financing will be used to ramp up manufacturing, accelerate new product development, and expand into new geographic markets.”

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 Enphase Energy team has demonstrated extraordinary innovation and execution, and we’re excited to be an investor in a company that is poised to extend its leadership in solar inverters,” said Madrone’s McJunkin. “This capital will give Enphase the resources necessary to further accelerate its growth.”

Enphase says it has already sold tens of thousands of microinverters–which convert the DC output of each solar module into AC power and can be monitored at the module level–into hundreds of residential and commercial installations. Since demand for the devices has been high, the Petaluma, CA-based company has signed sales and distribution agreements with major partners and distributors.

At Greentech Media’s recent solar industry summit, Enphase’s VP of marketing, Raghu Belur, said that the company has gone into volume production with the microinverters, and that the devices have already passed the 15 million unit-hours mark in the field.

Belur also detailed improvements in the second-generation microinverter, which has a 96% efficiency rating, an operating temperature of -40°C to 65°C, better than 99.8% system availability, mean time between failures rated at >300 years, and a smaller footprint than the first-generation device.

He also showed data comparing the microinverter energy harvesting performance against a traditional inverter, with the module-level device providing an average kilowatt-hour energy improvement of 10.7%.

The company claims a system-level internal rate of return gain of 24.5% when the microinverters are deployed, factoring in metrics such as system uptime, performance, and balance of systems/labor costs.

Read Next

December 19, 2025
German renewable energy developer BayWa r.e., along with its Dutch subsidiary GroenLeven, has sold a 46MW floating solar PV (FPV) project in the northern province of Friesland, the Netherlands.
December 19, 2025
The US House of Representatives has passed a permitting reform bill reducing the environmental scrutiny on large energy projects.
December 19, 2025
Wang Bohua, honorary chairman of the China PV Industry Association (CPIA), said that the polysilicon production in China experienced its first year-on-year decline since 2013, while wafer production registered its first year-on-year decline since 2009.
December 19, 2025
'The UK market has matured,' Guy Lavarack, chief investment officer at the Luminous Energy Group, tells PV Tech Premium this week.
Premium
December 19, 2025
PV Talk: Luminous Energy's Guy Lavarack says that interface risk, grid risk and talent risk are all key risk factors in Europe.
December 18, 2025
The latest edition of our print journal, PV Tech Power, is out today and available to download, where we deep dive into PV quality assurance.

Upcoming Events

Solar Media Events
February 3, 2026
London, UK
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
November 24, 2026
Warsaw, Poland