May 3, 2012, 8:13 a.m.
I received email notification of PolySun software version 5.9. It is targeted towards solar contractors. Two versions-Professional and Designer versions, for $Euro 380 and $#uro 580 respectively. Checking sample reports and brochures-- http://www.velasolaris.com/vs2/files/report_photovoltaic_en.pdf http://www.velasolaris.com/vs2/files/photovoltaik_e.pdf Your contractor may have used this expensive software to convince your on a solar array investment. You might ask for a demo download, if you are game; and get a comparison of your actual productivity with its simulation reports. Our resource is all free and available on demand.

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