Related question:
I have solar panels, but they each have a DC optimizer on them
(basically does MPPT and production level measurement on a per panel
basis, but sends DC down to the wall mounted inverter).
When the grid is down, the (Solar Edge SE 10KW) inverter shuts down, and
the DC optimizer (P320 Solar Edge Optimizers) go into a "standby" mode
where they each produce exactly 1 volt. This limits the DC voltage on
the DC lines from the roof to 18 volts (18 panels/optimizers per line).
[They wait for an OK from the inverter before they power back up to full
voltage.]
My question: Anybody know how much current (if any?) they provide when
in this standby state? 18V is enough to recharge a 12v system, but if
the optimizers are not producing any real current, it's probably useless.
The spec sheet says 1.0 +/- 0.1 volt DC output in Standby mode, but does
not specify anything about the maximum amps in this state. I would
assume they turn the amp output down quite a bit as well, as this is
designed to make the solar wiring "safe" in the event of power shutdown.
Just wondering if anybody had measured the actual current available.
Jay
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