Hi Allan, et al,
Just what amount of temperature difference (and corresponding SOC difference)
are we talking about?
In previous incarnations, Outback produced an attractive albeit very labor
intensive unassembled battery cabinet which, if my old memory is correct, this
optionally _enclosed_
Have residential grid-tie system as follows: 6kw direct grid-tie w/SB6000, 2kw
battery base back-up w/OutbackGT3648. Been waiting for Sunny Beam, have kwh
meter on OB - Any way to coalesce the two into single monitoring station?
Web-based prefered.
Holt E. Kelly
Holtek Fireplace Solar
Most likely at this time of year you are starting to get calls from client's
accountants asking about classification of the costs related to a solar
system purchsed that year from you by their client.
For most grid tied pv systems and solar DHW systems is fairly easy to advise
the cost
Bill,
I haven't tested temperature gradients, so in that respect I can't answer
your question. Also, my post was a cautionary note to Kirpal to evaluate the
temperature effects in deciding whether to stack flooded batteries. But he
noted big banks and 7000 pounds, both of which suggest tall
Wehave completed several totally different AC coupled systems using different inverters, due to large ground mounted arrays that had to be located a great distance from inverter-battery-generator-grid BAS, which are working just fine even with the mis-match of inverter brands. The SunnyBoy seems
Hi, All~
On an AC coupled system as Jeff describes, the battery charge circuitry on
the battery based inverter is not even participating.
A straight pure sine inverter...with no charger function built in...would
also charge the battery if AC coupled to a SunnyBoy with no grid
available. The
Greetings..it is my understanding that the Sunny Island coupled with
Sunny Boys is able to taper charge in an AC coupled system as the 2
inverters are able to communicate with each other and the Sunny Island
alters the frequency input of the Sunny Boys and lowers the total output of
the Sunny
Hello Wrenches,
3 questions.
Our customer in Orange, CA has an ST2500 inverter system. The inverter AC
breaker is tripping (but not the electric service panel back-feed breaker).
Xantrex tech service told the customer that they no longer service the
ST2500 and to replace the inverter. I
it is my understanding that the Sunny Island coupled with Sunny Boys is able to taper charge in an AC coupled system as the 2 inverters are able to communicate with each other and the Sunny Island alters the frequency input of the Sunny Boys and lowers the total output of the Sunny Boys to match
Kirpal,
You’ve got it summed up pretty well, although I would add that you need to
use RS485 cards and cabling between the SBs and the SI Master to get
regulated charging – the comm. allows the SI to send a handshake to the SB,
telling the SB to go into “off grid” mode and accept wider voltage
Phil,
Good advice. Assuming 48V and a large system, what would you use as a
diversion load and controller in this application? As I understand it, this
would be a DC diversion load, such as a wind gennie air heater, that would
be gradual, resistive, and noncritical for occasional use in this rare
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