Day4 Energy Gains Chinese Patent Approval for Proprietary Solar Technology

Additional Intellectual Property Protection Supports Day4 Energy’s Global Expansion

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Burnaby, BC – August 21, 2008 - Day4 Energy Inc. (TSX: DFE), a leading manufacturer of high performance, cost-effective solar electric modules, today announced that the China Patent & Trademark office has issued a decision to award the company a patent for its core Day4 Electrode™ solar technology. The Chinese patent approval adds to existing intellectual property protection the company holds in key global markets including the European Union, United States, India and Mexico.

“With international market demand for the advanced Day4 solar energy modules continuing to outpace our current product supply, we continue to evaluate near- and long-term production expansion strategies. This Chinese patent protection allows us to further explore partnership and growth opportunities in Asia, a region with significant electrical power generation market potential as well as photovoltaic and electronics manufacturing capabilities,” said George Rubin, president of Day4 Energy.

The Day4 Electrode 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 photovoltaic (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 including lower-cost upgraded metallurgical grade (UMG) silicon and thin film materials. Day4 Energy is seeking patent protection for this and other related technologies in a number of additional countries worldwide.

About Day4 Energy: Headquartered near Vancouver, British Columbia, Day4 Energy Inc. (TSX: DFE) designs, manufactures and sells photovoltaic (PV) modules based on its patented Day4 Electrode technology, a proprietary method of contacting and interconnecting solar cells that produces PV panels of high power density, increased lifetime and uncompromised aesthetic appearance. Day4 Energy partners with the industry's leading PV cell producers to deliver IEC- and UL-certified commercial and residential solar products to customers throughout Europe and North America.

www.day4energy.com

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Press Contact:
Rosalind Jackson
Antenna Group (for Day4 Energy)
415-977-1923
rosalind@antennagroup.com

Investor Contact:
Cory Pala
416-657-2400
CPala@Day4Energy.com