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June 10, 2008 9:11 AM PDT

Microinverters track solar panels via the Web

by Martin LaMonica
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Enphase Energy on Monday released a solar power system that takes a dramatically different approach to harnessing energy from solar panels.

With an inverter on every solar panel, owners can view performance of each individual module via the Web.

(Credit: Enphase Energy)

The start-up company, which raised $6.5 million in funding earlier this year, has built a "microinverter" that converts a solar electric panel's direct current to alternating current on the panel.

Inverters are typically separate devices that are hung outside or in a basement. By placing an inverter right on a panel, Enphase Energy says that it is more efficient at converting light to electricity.

In addition, the microinverters give panel owners a better means for monitoring the performance of individual panels.

The company also has a gateway that transfers panel performance data which is displayed on a Web site.

The microinverter on a solar panel.

(Credit: Enphase Energy)

Its design has garnered high praise from University of California at Berkeley professor Dan Kammen who is director of the Renewable and Appropriate Energy Laboratory. In a statement, he called microinverters "disruptive technology" and said, "I think this is, in some sense, the most important technological breakthrough solar has ever seen."

Solar installer Borrego Solar beta-tested the microinverter system at residential sites and intends to use it.

Martin LaMonica is a senior writer for CNET's Green Tech blog. He started at CNET News in 2002, covering IT and Web development. Before that, he was executive editor at IT publication InfoWorld. E-mail Martin.
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by wonthedublein08 June 10, 2008 1:22 PM PDT
This is great news for anyone interested in solar energy or <a href="http://www.enernoc.com">energy management solutions</a>
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by praveen67 September 9, 2008 8:40 AM PDT
This is a great step forward. We'd be greatly interested to know its lifecycle costs
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by dllorens1979 September 11, 2008 10:18 AM PDT
I wrote a pros Vs. Con's article on microinverters here:
<a class="jive-link-external" href="http://www.solarpowerrocks.com/solar-trends/microinverters-my-turn-the-boring-technical-stuff/" target="_newWindow">http://www.solarpowerrocks.com/solar-trends/microinverters-my-turn-the-boring-technical-stuff/</a>
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