Colin, The IPN Network charge controllers from Blue Sky Energy can be configured as Master & Slave so ALL controllers work together. With up to 8 controllers on the network, you can have multiple arrays and orintations. Their new Duo model will function as hydro or wind diversion control. AND, each controller has a fully programmable lighting control! Sounds like this is the controller to meet all your requests. We have sold hundreds and I highly recommend them.
Larry Crutcher Starlight Solar Power Systems (928) 342-9103 www.starlightsolar.com Retail Store& Warehouse 2998 Shari Ave. Yuma, Az 85365 USPS Postal Mail Only 11881 S Fortuna Road, #210 Yuma, AZ 85367 On May 23, 2012, at 6:47 PM, Colin Vogt wrote: Wrenches, What considerations are there for the number of charge controllers that can be in a stand-alone system with a single battery bank? If one uses MPPT controllers, then one would want (I think) a different controller for different module orientations. That is, if one had a couple modules at one azimuth/tilt angle you would have a controller for that, and another controller for a module at a different azimuth/tilt angle. Also, I can see having a controller to turn on yard lights (Morningstar makes one, although it is not an MPPT type and is of limited capacity). Could also one have a controller for diversion loads? And also a controller for a wind generator? So I can see where a stand-alone system might have 4 or maybe even more controllers, all tied into the same battery bank. Are there any considerations for a system like this? For instance, do the setpoints for all controllers need to match? Colin Vogt _______________________________________________
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