Enphase Installations Outpacing U.S. Residential Solar Growth in 2013

  Enphase Installations Outpacing U.S. Residential Solar Growth in 2013

 Enphase sees over 200% year-over-year growth in California during the third
                               quarter of 2013

Business Wire

PETALUMA, Calif. -- December 17, 2013

Enphase Energy, Inc. (NASDAQ: ENPH), today announced Enphase installations
were up 62 percent during the first three quarters of 2013 compared to the
first three quarters of 2012, based on MW installed in the U.S. residential
market. According to the recently released U.S. Solar Market Insight™ (SMI) Q3
2013 report from GTM Research and the Solar Energy Industries Association
(SEIA), this outpaces overall U.S. residential market growth, which was 49
percent during the first three quarters of 2013 compared to the first three
quarters of 2012.

“Our breakthrough solar technology, coupled with our ability to execute on key
business initiatives, has propelled Enphase to become the dominant inverter
technology used on homes in the Americas,” said Paul Nahi, CEO of Enphase.
“While solar incentives and markets ebb and flow in the U.S., the constant is
Enphase installation growth.”

In the third quarter 2013, Enphase also reported strong business growth in
California, with installed units increasing over 200 percent on a
year-over-year basis. The SMI report shows that California remains the largest
residential solar market in the U.S., with 99MW installed during the quarter,
up 85 percent on a year-over-year basis. In addition, Enphase continues to see
healthy growth in other U.S. residential markets, such as New Jersey, New
York, Maryland, Colorado, Arizona and other states.

“Based on these numbers, Enphase continues to grow its market share in the
overall U.S. residential market, with a great performance in the California
market,” said Kris Sennesael, CFO of Enphase.

Notably, 2013 is likely to be the first time in more than 15 years that the
U.S. installs more solar than world leader Germany, according to SMI report
forecasts. It also forecasts the U.S. residential market for 2013 to be 753MW,
growing to 1,031MW in 2014. This is a sequential increase of 37 percent.

About Enphase Energy, Inc.

Enphase Energy delivers microinverter technology for the solar industry that
increases energy production, simplifies design and installation, improves
system uptime and reliability, reduces fire safety risk and provides a
platform for intelligent energy management. Our semiconductor-based
microinverter system converts energy at the individual solar module level and
brings a systems-based, high technology approach to solar energy generation.
Connect with Enphase on Facebook and follow us on Twitter. www.enphase.com

Forward-Looking Statements

This press release may contain forward-looking statements, including
statements related to Enphase Energy’s financial performance, market demands
for its products, advantages of its technology and market trends. These
forward-looking statements are based on the company’s current expectations and
inherently involve significant risks and uncertainties. Actual results and the
timing of events could differ materially from those anticipated in such
forward-looking statements as a result of these risks and uncertainties and
other risks detailed in the “Risk Factors” and elsewhere in Enphase Energy’s
latest Securities and Exchange Commission filings and reports. Enphase Energy
undertakes no duty or obligation to update any forward-looking statements
contained in this release as a result of new information, future events or
changes in its expectations.

Enphase Energy®, the Enphase logo and other trademarks or service names are
the trademarks of Enphase Energy, Inc.

Contact:

Enphase Energy
Christine Bennett, +1-707-763-4784
Global Corporate Communication Manager
pr@enphaseenergy.com