SunMizer(TM) DC Power Optimizer Demonstrates Payback in Less Than 5 Years

'Selective Installation' on Residential PV System Recovers Over 50% of Power
Loss Due to Shade.

PETALUMA, Calif., Oct. 26 /PRNewswire/ -- Xandex Solar, a division of Xandex
Inc., announced today the release of a case study on the retrofit of a
residential solar installation with its new SunMizer(TM) DC Power Optimizers.
The 6.4kW installation, located in Sonoma, CA, presented the system designer
with a complex multi-tiered roof and significant space constraints, a
situation typical in many residential solar installations. The case study
shows that SunMizer, when selectively installed on only 8 shaded panels,
recovered more than 50% of system level power loss.

The residential system consisted of thirty-two (32) 200W panels connected in
two sixteen (16) panel strings on a single inverter. Prior to SunMizer
installation, system performance output was modeled, both with and without
shade, to determine the annual energy recapture potential. The results
revealed that more than 2,000 kWh of annual energy production was being lost
due to shade.

SunMizer was then "selectively installed" on 5 panels in one string and 3
panels in the other string. These 8 panels experience shade during daily
"peak sun-hours", or from 9AM to 5PM. After SunMizer installation, the result
was a significant increase in output that amounts to over 1,000 kWh of power
recovered annually. This equates to a SunMizer payback period of less than 5
years when valued at typical Northern California residential electricity
rates.

"Like many residential installations, shade was having a significant impact on
power output," said Tim Kubes, Director of Sales and Marking for Xandex Solar.
"The power recovery is remarkable and proof adding SunMizer only to shaded
panels offers significant value for our customers." The case study is
available by registering at www.xandexsolar.com and also at Xandex Solar Booth
#2252 at Solar Power International 2009 in Anaheim, CA, October 27-29 as
SunMizer is introduced to the North American Solar market.

About Xandex Solar
Xandex Solar is the solar products and services division of Xandex Inc.
Organized in 2007, our mission is to be a premier provider of solar energy
solutions worldwide. Our parent company, Xandex Inc. was founded as a
technology startup in 1981 to design and manufacture innovative solutions for
the semiconductor industry. Continuing in that tradition of technological
innovation, Xandex Solar is undertaking research and development projects to
improve PV conversion efficiency, reduce the cost of solar electricity and
increase adoption of solar electric systems. For more information visit
Xandex Solar on the web at www.xandexsolar.com or contact:

Media: Kim Anderson email: kanderson@xandex.com (707) 763-7799 x144 Toll Free
(800) 767-9543
Sales: Ted Wong email: twong@xandex.com (707) 763-7799 x179 Toll Free (800)
767-9543

SOURCE Xandex Solar, a Division of Xandex Inc.

Media, Kim Anderson, +1-707-763-7799, ext. 144, 1-800-767-9543,
kanderson@xandex.com, or Sales, Ted Wong, +1-707-763-7799, ext. 179,
1-800-767-9543, twong@xandex.com, both of Xandex Inc.