[RE-wrenches] Combining Solectria PVI 2500 with SB3000

[Carl Adams]

Dave,
You can also change the jumper settings on the SMA,  so that it does not
require a neutral.

Regards
Carl
On Apr 19, 2012 2:06 PM, "Dave Palumbo" <dave at independentpowerllc.com>
wrote:

> Dave,
>
> Very good. Thanks for the pick up on the 650A Service Disconnect issue.
>
> Dave Palumbo
>
> -----Original Message-----
> From: re-wrenches-bounces at lists.re-wrenches.org
> [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Dave Click
> Sent: Thursday, April 19, 2012 1:39 PM
> To: re-wrenches at lists.re-wrenches.org
> Subject: Re: [RE-wrenches] Combining Solectria PVI 2500 with SB3000
>
> This is fine; your PVI2500 is rated for 10.4A, while the SB3000 is 12.5A.
> You can put up to 24A rated current through your 30A fuses.
> Though the disconnect isn't technically a service disconnect, I'd recommend
> using a 60A rated (fused at 30A) disconnect per 230.79(D). You would run a
> neutral to your combining panel and I'd recommend a "PV SYSTEM ONLY; NO
> LOAD
> CIRCUITS TO BE ADDED" placard on that. Otherwise that'll be an
> electrician's
> first choice when wiring up the new 40A hot tub.
>
> I think something like the Cutler-Hammer BR24L70RP panel may be a good fit,
> and it would replace your fused disconnect. It only has space for two 2P
> breakers (no main).
>
> On 2012/4/19 12:29, Dave Palumbo wrote:
> > Wrenches,
> >
> > We have an installation in place since 2008 working well with a
> > Solectria PVI 2500 feeding a supply side grid connection.
> >
> > Homeowner wants us to double the system size now. I can buy a SB3000
> > inverter for $ 300 less than the Solectria PVI 2500 (with upcharge for
> > 10 yr warranty) and I'm inclined to go with the Sunny Boy.
> >
> > We would add an Inverter 240Vac combiner load center before our 30A
> > Fused Disconnect. I would think that it would be OK to combine the
> > 240vac outputs of different inverter manufacturers and sell into the
> > grid but never having done this I wanted to run it by you folks. The
> > SMA phone tech didn't seem to be the most experienced person and after
> > I spoke with him for a minute I had him saying that it should work fine.
> > But wanted to check with more experienced people.
> >
> > One wrinkle is that the Solectria does not use a Neutral, but the
> > Sunny Boy does. Again, I don't think that this will any problem.
> >
> > David Palumbo
> >
> > Independent Power LLC
> >
> > 462 Solar Way Drive
> >
> > Hyde Park, VT 05655**
> >
> > */www.independentpowerllc.com /*
> >
> > NABCEP Certified PV Installer
> >
> > Vermont Solar Partner
> >
> > 24 Years Experience, (802) 888-7194
> >
> >
> >
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