Day4 Energy Announces First Turnkey Manufacturing License With Enersis for the Eastern European Market

BURNABY, Canada, May 27, 2010 - Day4 Energy Inc. (TSX: DFE), a leading
supplier of high performance, cost-effective solar electric solutions, today
announced that it has signed an agreement with Enersis, the second largest PV
company in Slovenia, for a 25 megawatt (MW) turnkey manufacturing technology
solution for the production of Day4 Energy ("Day4") branded products to
address the rapidly growing Eastern European photovoltaic market.

"We are very excited about this announcement, the first in a series of
licensing agreements that we expect will add significant revenue to Day4 from
2011 onward," said George Rubin, President of Day4. "This is a clear example
of how Day4's turnkey manufacturing technology solution provides the ability
to scale the volume of business and increase market share in emerging markets
for Day4 products and brand without a significant requirement on capital
investment by Day4."

At current market prices and full capacity utilization the 25 MW line is
expected to provide approximately 1.2 million Euros per year in royalty
revenue to Day4. Once the acquisition of ACI is complete Day4 expects to
recognize two distinct revenue streams from these transactions:

     1.  The first is one-time revenue of roughly 3 million Euros from the
         sale of equipment and consulting services related to construction
         and set up of the turnkey production line.
     2.  The second is the ongoing royalty revenue stream, as referred to
         above, on the sales of products manufactured using the turnkey
         manufacturing line.

"Eastern Europe has tremendous growth potential and is already the third
largest market on the continent behind Italy and Germany. We are looking
forward to working with Day4 in this new venture to address this unique and
exciting opportunity," added Mr. Andrej Hanzic, Director of Enersis. "Our
established relationships and position as the second largest PV industry
company in Slovenia can be leveraged for the purpose of ramping up sales of
the Day4 branded technology products."

About Day4's Manufacturing Technology Solution:

———————————————–

On April 26, 2010 Day4 announced that it had entered an agreement in
principle to acquire ACI-ecotec GmbH & Co. KG ("ACI"), a privately owned,
specialized photovoltaic (PV) equipment design and manufacturing company
based in Germany. The combination of the Day4 proprietary technology and
ACI's specialized know-how and equipment allows Day4 to immediately launch
the offering of its highly anticipated turn-key manufacturing technology
solution for the production of PV cells and PV modules. ACI's existing
customer relationships, execution capabilities and solid market reputation
provide Day4 with a unique opportunity to rapidly roll out its manufacturing
technology offering across a wide cross section of PV manufacturers in a
number of key markets. At the same time, ACI's manufacturing process and
equipment engineering capabilities will add significant depth to Day4's R&D
team and allow the company to significantly accelerate the development of the
next generations of PV technology.

Based on the patented Day4 Electrode and Guardian technologies, Day4's
manufacturing solution offers PV cell and module producers an opportunity to
reduce their investment and production costs while achieving sustainable
differentiation in highly competitive solar markets. The solution will allow
them to produce one of the industry's highest performing products that
customers around the world have grown to associate with the highest levels of
reliability, energy production and investment return.

With technological differentiation rapidly emerging as a critical area
for most PV manufacturers, Day4's offering of a turn-key package of
manufacturing technology, proprietary equipment, process, product design and
technology license is a natural evolution of the company's business.

By offering a turn-key Day4 PV cell and PV module manufacturing solution
to the PV industry, Day4 is looking to significantly expand the market share
of products based on Day4's proprietary technology in existing as well as new
and emerging markets around the world. Furthermore, Day4 manufacturing
solutions sales are expected to significantly alter the company's revenue
model as manufacturing line integration services and technology royalty
streams associated with the new product offering become an increasingly large
component of the company's revenue mix over time.

About Day4:

Day4 Energy Inc. is a Canadian company dedicated to providing high
performance photovoltaic (PV) solutions for residential, commercial and
utility scale installations. By fundamentally improving on the design and
assembly of solar cells and modules, the Company produces unique PV panels of
high power density, increased lifetime and uncompromised aesthetic
appearance. Day4 partners with international technology leaders to develop
and deliver IEC- and UL-certified solar products to customers around the
world. Day4 is listed on the Toronto Stock Exchange under the symbol "DFE".
For more information, please visit www.day4energy.com.

About ACI-ecoTec GmbH & Co. KG:

ACI-ecotec GmbH & Co. KG located in South Germany, was founded in 1980
and develops, builds, and integrates state-of-the-art production automation
and process equipment for the Photovoltaic industry. This includes precision
robotic work-cells and turn-key production lines for assembly, micro-assembly
, measurement and testing, for the production of Photovoltaic Wafers Cells
and Modules. Products include the ecoSol(R) for the production of Solar
Modules; the ecoContact(TM) for contacting of Thin Film Modules and Cells;
the ecoSplit(TM) for raw wet wafer separation, and a leading market-share
process carrier for solar wafers and cells, the ecoCarrier(TM).
www.aci-ecotec.com

About Enersis:

Enersis was established in 2007 and has its roots in a family company
that has operated in Slovenia and International markets for over 40 years. In
its first two years of operation in the solar industry Enersis has sold
equipment for PV systems and installed more than 40% of all Slovenian PV
systems. www.enersis.si

Forward-Looking Statements:

This news release contains forward-looking information. These statements
relate to future events or future performance and reflect management's
current expectations and assumptions. A number of factors could cause actual
events, performance or results to differ materially from the events,
performance and results discussed in the forward-looking statements including
but not limited to the fact that the conditions precedent to the completion
of the proposed acquisition of ACI may not be successfully met and the
acquisition may not be completed. These forward-looking statements are made
as of the date hereof and the Company does not assume any obligation to
update or revise them to reflect new events or circumstances.

For further information: Therese Hayes, Head, Corporate Development, Day4
Energy Inc., +1(604)345-6771, thayes@day4energy.com; Heather Ballachey,
Media Contact, Day4 Energy Inc., +1(604)296-0445, media@day4energy.com

For further information: Therese Hayes, Head, Corporate Development, Day4 Energy Inc., +1(604)345-6771, thayes at day4energy.com; Heather Ballachey, Media Contact, Day4 Energy Inc., +1(604)296-0445, media at day4energy.com