HI Nick,
Thanks for the idea. I didn’t consider theSMA/ SI/MC because at this point its
a legacy product and I wouldn't want to have to deal with potential lack of
parts, technical support or warranty should something go wrong.
Also my understanding is that the MC box for larger systems isn’
What about large stacks of telecom style rectifiers with the output tuned
to the desired absorb voltage? Very scalable but I'm not sure how the
costs would compare...
On Thu, Dec 2, 2021 at 1:46 PM Michael Morningstar
wrote:
> I’m currently building a similar sized system (a bit larger), so I k
I’m currently building a similar sized system (a bit larger), so I know what
the costs are for such scale. Seems like 6-9 SolArks or XWpros for dedicated
closed loop charging only wouldn’t be unreasonable?
If an equally sized battery charger exists it would be a monstrosity!
> On Dec 2, 2021
Hi all
Sorry I guess I didn’t explain the clients wants well enough
1. 90-100kwh+ 48 vdc lithium battery
2. 208 3 phase AC generator powering 48v nominal battery chargers.
208-3phase as that is the house/EE design voltage.
3. AC generator because it’s back up if the inverters fail, so no DC gen
Maybe a DC output generator, the Wildcat Maverick charges a 48v battery bank
directly and has it’s own controls, independent from the inverter.
https://wildcatpowergen.com/pages/maverick
Michael D Nelson
MD Electric & Solar, Inc.
707-684-0064 mobile
707-884-1862 office
www.mdelectricsolar.com
ww
Hi Jay,
Is the plan to feed DC current (from generator and grid) into the batteries
and keep the inverters as power source for loads?
On Thu, Dec 2, 2021 at 6:30 AM Darryl Thayer wrote:
> Jay I am confused as usual, what are the loads? AC or DC? How are you
> charging the battery from the gen
Jay I am confused as usual, what are the loads? AC or DC? How are you
charging the battery from the generator or how is the battery powering the
loads? What is the desired current or the size of the generator? sorry
if this I dumb question
On Wed, Dec 1, 2021 at 2:23 PM Jay wrote:
> I got a
I got a call from a colleague that is designing a very large roughly 90-100 kWh
lithium battery at 48v.
He’s looking for large AC chargers to charge this bank. The reason is total
elimination of switch over delay from inverter to generator and back.
One technique is to use inverters for this,
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