Don't forget that you can use a AC load as well for an AC coupled system. jay peltz power
On Oct 28, 2010, at 8:25 PM, Kent Osterberg wrote: > Howie, > > In an ac coupled system with Outback inverters you could use a diversion > controller such as a Morningstar Tristar 60 on the dc side. That would allow > using an ac coupled system and a nicely controlled finish charge for the > batteries too. Since there is already a MX60 to do the finish charge in the > system you are considering, a voltage controlled switch, like the Morningstar > relay driver, could simply shut down the SB3000. > > Kent Osterberg > Blue Mountain Solar > > > Howie Michaelson wrote: >> Hi All, >> >> I have done several AC coupled off-grid systems using Sunny Islands and >> Sunny Boys, but I am now doing one with a dual stacked OB VFX3648 (with a >> PSX240 on the Inverter out for load balancing) and a SB3000. There is >> also an existing array that is running through an MX60. What I am >> wondering about is how folks have set up AC coupled string inverters to >> best utilize the solar gain while not toasting the batteries. I'm a big >> fan of the tapering control offered by SMA through the frequency shift of >> the SI's, but that's not available here. What relay/contactor setup have >> folks found most efficient and safe? Thanks in advance, >> >> Howie >> > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
