If they HAD to have the wee Generac, you could have it feed only one
inverter, and the other 3 Magnums could stay in invert mode. I have
large systems where I'm not using the charger off every inverter.
R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760
On 10/1/2013 11:09 AM, Larry Crutcher, Starlight Solar Power Systems wrote:
You are right. Normally I would not even consider a generator of this
size. My constant thinking outside the box took me down this rabbit
trail. I'm back.
Thank you,
Larry
On Oct 1, 2013, at 8:24 AM, Allan Sindelar
<al...@positiveenergysolar.com <mailto:al...@positiveenergysolar.com>>
wrote:
Agreed. We're all offering ways to work as well as possible with the
wrong generator choice for this application.
Allan
*Allan Sindelar*
_Allan@positiveenergysolar.com_ <mailto:al...@positiveenergysolar.com>
NABCEP Certified PV Installation Professional
NABCEP Certified Technical Sales Professional
New Mexico EE98J Journeyman Electrician
Founder, *Positive Energy, Inc.*
A Certified B Corporation^TM
3209 Richards Lane
Santa Fe, New Mexico 87507
*505 424-1112 office 780-2738 cell*
_www.positiveenergysolar.com_ <http://www.positiveenergysolar.com/>
On 10/1/2013 9:16 AM, Ray Walters wrote:
Sounds like they need a 20 Kw Kohler. Hot Tub in the future? They'll
love their Kohler. The Generac is just way too small to even
consider IMHO.
R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760
On 10/1/2013 8:11 AM, Larry Crutcher, Starlight Solar Power Systems
wrote:
William, Chris, Ray, Allan, et al.
Gen support would be ideal but this inverter setup will be a quad
pack of Magnum 4024PAE (120/240 split; 16kW). Their New MSH inverter
is single phase only and can not be stacked.
While disabling load(s) is the antithesis of the desired outcome,
I'll review this possibility further.
Using a separate charger could work but it would need to be about
200A @ 32V which would add quite a bit of cost and be hard to sell
since the Magnum inverters already have 4 high quality charges
included.
A larger generator might be necessary if the customer won't agree to
load shedding. Their plans are to expand the loads over time,
operate a business, install a hot tube and more. Of course I have
pushed the concept that conservation is paramount. The PV array and
inverters are being oversized now for the future growth.
My ideal solution...Since Magnum inverters monitor the AC input and
control it based on quality of power, it seems to me that there
could be a setting for disconnecting the AC input if loads exceed a
setpoint. Change in control software would be great.
Thank you,
Larry
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