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New Guardian Technology Offers Intelligent Shading Protection, High Power

Density, and Better ROI

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BURNABY, BC, Sept. 14 /CNW/ - Day4 Energy Inc., a leading technology

developer and manufacturer of high performance solar electric modules, today

announced the expansion of its product offering to include the Day4 60MC-I

featuring the breakthrough Guardian Technology(TM). Guardian Technology

dramatically improves the performance of the photovoltaic (PV) modules when

exposed to partial shading, snow, debris and other external factors that under

normal circumstances cause a substantial reduction in power yield. As a direct

result, Day4 60MC-I modules with Guardian Technology are three times less

sensitive to these external factors. They also offer as much as 25 percent

greater power yield from the same installation area due to higher installation

density and enable viable PV installations on many sites that have been

previously considered not suitable for this purpose.

"With greater performance over the day, year and lifetime of the product,

more energy is collected and more kilowatt hours are produced. This means a

greater return on investment for the solar installation", said Day4 Energy

president, George Rubin. "We understand that our customers are solar energy

investors that are focused on kilowatt hours, not just kilowatts."

This new development builds on the Day4(R) Electrode platform, which is

an advanced construction technology that directly replaces the decades-old

soldering methods that are widely used to manufacture solar panels. By

improving connections to and between PV cells, the Day4 Electrode delivers

quality solar electric products with higher performance, longer lifetime,

improved aesthetics and lower cost. The Day4 Electrode further enables more

efficient design and manufacturing of next generation PV technologies.

Guardian Technology is applicable to a wide variety of PV cell designs

including back contact cell concepts and high efficiency cell designs

currently under development at Day4 Energy.

"This new technology offers a great advantage for system performance

under real world conditions. It will now be possible to install in areas that

were thought of as unsuitable and still produce positive returns on the solar

investment", says Leonid Rubin, chief technology officer of Day4 Energy. The

company has been granted patent protection in relation to this new, unique

technology.

The 60MC-I featuring Guardian Technology is in the process of receiving

IEC - TUV Rheinland and UL certifications and based on very positive internal

testing is expected to be certified for sale in both the European and North

American markets in early 2010. The module will be launched at the EU PVSEC in

Hamburg in September and Solar Power International in Anaheim in October.

Please visit us in Hall B6, Stand 63 in Hamburg and booth 1439 in Anaheim to

learn more about the 60MC-I and Guardian Technology. Join the Day4 sales team

for daily presentations on the technology and its benefits.

About Day4 Energy:

Day4 Energy Inc. is Canada's largest manufacturer of high performance

photovoltaic (PV) modules for residential, commercial and utility scale

installations around the world. By fundamentally improving on the design and

assembly of solar modules, Day4 Energy produces unique PV panels of high power

density, increased lifetime and uncompromised aesthetic appearance. Day4

Energy partners with international technology leaders to develop and deliver

IEC- and UL-certified solar products to customers throughout Europe and North

America. Day4 Energy is listed on the Toronto Stock Exchange under the symbol

"DFE". For more information, please visit www.day4energy.com.

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/For further information: Therese Hayes, Head, Corporate Development,

(604) 296-0434, thayes@day4energy.com; Agnieszka Pozniak, Media Contact, (604)

296-0415, apozniak@day4energy.com/