Day4 Energy's Solar Technology Breakthrough Moves Towards 25% Reduction in Solar Electricity Costs

    Next-Generation Day4 Technology Leads to 19% Efficient PV Cells at Lower

    BURNABY, BC, July 30 /CNW/ - Day4 Energy Inc. (TSX: DFE), a leading
manufacturer of high performance, cost-effective solar electric modules,
announced today that it has achieved a major breakthrough in its R&D program
focused on the design and development of high performance solar cells. After
months of intensive research and experimental trials, the company has
developed a design and manufacturing process for its Generation II solar cells
with efficiency up to 19 percent on mono-crystalline and 18 percent on
multi-crystalline silicon materials. The new design constitutes a significant
improvement not only in maximum efficiency but also in low cost manufacturing
and lower commercialization risk.
    The application of the Generation II photovoltaic (PV) cell technology
for multi-crystalline products is particularly important because of the
material's lower price point and the company's secured cell supply. The
Generation II technology was designed to be fully compatible with Day4
Energy's existing manufacturing equipment, enabling rapid deployment and
scale-up. The technology further leverages existing solar cell manufacturing
infrastructure as well as certain processing techniques widely deployed in
other industries. The company expects that a combination of the technology and
manufacturing process will reduce production costs by up to 25 percent of what
is currently possible with conventional technology.
    "Our first generation 14.7 percent efficiency Day4 MC module, which has
been in commercial production since 2006, already places us among the
industry's highest performing multi-crystalline products," said Professor
Leonid Rubin, chief technology officer of Day4 Energy. "With the second
generation of our proprietary solar cell designs we are taking a major step
towards making solar energy cost competitive with conventional sources of
electrical power generation."
    "I am truly proud of our research team. A combination of high performance
technology with low cost and manufacturing scalability represents a very
significant achievement in reducing the kilowatt-hour costs of solar
electricity" adds Dr. John MacDonald, chairman and CEO of Day4 Energy.
"Performance at this level using less costly multi-crystalline material cannot
be achieved without employing the Day4 Electrode technology."
    Day4 Energy expects to fast track commercial scale-up of its high
performance PV cell technology over the next 18 months and is currently in
discussions with a number of partners in respect to this process. The company
has also recently filed a patent application in connection with this

    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, North America and Asia.

For further information:

For further information: Press Contact: Rosalind Jackson, Antenna Group,
(for Day4 Energy) (415) 977-1923,; Investor Contact:
Cory Pala, (416) 657-2400,

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