Keith I was involved with doing some testing with these guys for a company that wanted to manufacture them in Washington State ( made in WA incentives) and the concept is good, but I had a lot of questions that they were not able to answer. Big one is the inverter was producing 10watts all night long ( smoke and mirrors!) . This is in my opinion is only possible if the inverter is playing with power factor from the grid, possible maybe in a commercial setting, but less likely to be too big of a gain in a residential setting where Power factor issues are generally less pronounced. I never was able to get solid answers about what was actually happening and at the time I did not have good enough Power analysis monitoring equipment ( I was going by several meters and clamp ons and the monitoring software from the inverter itself. I was able to adjust the power factor and gain some output, but with out actually monitoring what was happening simultaneously with high end Power Quality equipment I could not tell what was really happening. Again no solid responses from Apparant. Again when I am getting more output than is possible from the module, something seems fishy, or at least using power from the grid to increase the output on the inverter seems a little crooked) So at this point I would recommend buyer beware , concept is good , but until the utility starts paying a premium for power factor adjustment ( or a commercial install needs power factor adjustment I do not see how the added features can be cost effective. IMHO, I am not convinced that this inverter is really doing what they are claiming, however I would love to be proved wrong!
Bill Bill Hoffer PE NABCEP Certified Solar PV Installer™ Sunergy Engineering Services PLLC 2504 Columbia Ave NW East Wenatchee WA 98802-3941 suneng...@gmail.com Cell:(509)679-6165
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