New Technology Gives Immediate Boost of 6-11% Power to Solar PV Systems

Act Solar's new product, Powerstring' for solar PV systems cumulatively delivers an additional 40-80% total power over 25-40 years of operations

Santa Clara, CA, FEB. 4, 2009 — Act Solar, Inc., a power management optimization company, today announced the limited availability of its flagship solar product, PowerString' with patent-pending Injection Boost' technology. Extensive field testing has proven that PV systems using PowerString' initially yield 6-11% more power, and are projected to cumulatively deliver 40-80% more total power over 25-40 years of operations. The company is now seeking additional customer locations to further validate PowerString's' performance benefits.


Act Solar's PowerString' complements central inverters by dynamically re-circulating small amounts of electricity, as needed. Injection Boost actively maintains the balance of the array, which assures maximum power output.

Santa Clara University was one of the first proving grounds for PowerString'. Act Solar installed PowerString on the SCU campus' 50kW array in 2008, and improved its power production by 16.2%.

"Introducing PowerString into our solar systems aligns well with our goal of generating as much of the campus energy as possible from renewable sources," said Joe Sugg, assistant Vice President of University Operations at SCU, and a key player in the university's five-fold increase in the use of renewable sources of energy. "I was pleased to see that Act Solar's PowerString improved the efficiency of our main solar array so significantly."

"PowerString is the next phase of efficiency and cost reduction for the solar industry," said Act Solar CEO and founder Andrew Foss. "To date, the solar industry has focused on lowering the upfront costs of materials, components and labor. While these efforts are critical, we know that Act Solar will further lower generation costs by improving and assuring maximum power output over the life of the array. Solar system integrators, operators and financiers will substantially lower their cost-per-kWh with PowerString," added Foss.

"The solar industry is quickly maturing. It is just as important that we optimize existing and new solar PV plant efficiency, as it is that we deploy new plants. Act Solar is a key player in moving the industry to the next level," said Jigar Shah, founder of SunEdison.

About Act Solar
Act Solar is a power management technology company that provides optimization solutions for power installations. Its flagship product, PowerString', improves the performance, operation and longevity of solar power plants. Act Solar was founded in 2006 by an experienced team of Silicon Valley professionals focused on making solar energy more productive, competitive, and a mainstream source of power in the world market.

©2009 Act Solar, Inc. All rights reserved. Act Solar, the Act Solar logo, Injection Boost and PowerString are trademarks of Act Solar, Inc.






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