Forum Discussion
naturist
Aug 24, 2020Nomad
Assuming all panels are the same voltage, a 30 amp controller should be able to handle all 240 watts of panels. Put them all in parallel, and it should be fine. 240 watts at 12 volts is 20 amps, well within the controller’s capacity.
But that does require all panels to be the same voltage. If the existing 40 watt panel is 24 volts, your extra 200 watts being 12 volts, you would have to put the new one in series to combine with the existing 40 watt panel.
Of course, upgrades are always possible. But the simplest is just adding the 200 watts.
But that does require all panels to be the same voltage. If the existing 40 watt panel is 24 volts, your extra 200 watts being 12 volts, you would have to put the new one in series to combine with the existing 40 watt panel.
Of course, upgrades are always possible. But the simplest is just adding the 200 watts.
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