Hey all,
I have an off grid client that we are moving the existing sway-backed fixed mount PV array to a new location (the sun gets blocked Nov, Dec And Jan after 1:30PM; the ex-husbands bright idea). We will be mounting the existing [12] MSX66 PV on a Wattsun tracker at [2] strings 6 modules @ 126VOC. I still have room for [2] 230watt PV modules that could be mounted in the middle in portrait. There is room on the MX60 charge controller for the additional wattage. This wattage total would meet her energy analysis currently. Obviously the additional [2] 230 watt PV modules in series will be at a different voltage, IV curve, & overall characteristic from the [12] MSX 66 modules [2 strings of 6 in series.] The client is not thrilled about having to run an additional wire feed [150'] and have an additional and separate charge controller for the additional 460 watts and 24 DC - 19 amps x 1.56 = 30 amps. I told her that it would affect the whole output and that she might only get 325watts to maybe an additional 400 watt if she was lucky and it might be worse than the 325watts. I am open to any experiences or points to make to help change the course of this not good idea & experiment that you might like to share to help me change her mind from "can we try it to, OK let's not do it", without the usual "trust me I am a wrench and this is a bad idea, and I know best." Even if I do.... Thanks, Dana Orzel Great Solar Works, Inc E - d...@solarwork.com V - 970.626.5253 F - 970.626.4140 C - 970.209.4076 web - www.solarwork.com Responsible Technologies for Responsible People since 1988"
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