Most solar panels (the flat ones that go onto roofs of houses) reject electricity produced by the panels if they are too low in voltage. For example, on a cloudy day, although the panels may still get some sunlight to produce some electricity, it is rejected because its too low in voltage. So, does anyone have any ideas?
On a day that's really dark, I don't think there is anything that can reasonably be done. The voltage is low because the power coming out of the panels is low. A circuit could step that voltage up, but could not increase the power. According to our user's manual, it takes 30 to 40 watts to run our inverter. So if the panels are putting out more than that, it's worth running the inverter. If not, then it's better to not even run it, so the inverter cuts out. A charge controller for a battery would have similar behavior if well-designed. Our array is large enough that during even relatively dark days, there is enough power so that the inverter won't cut out.
Put one more panel in series with other one to increase the voltage output during cloudy day.
apart from, the way image voltaic panels are under pressure jointly can impact the voltage output. If the panels are under pressure with the output of one connecting to the enter of the subsequent, or in sequence, the voltages of the panels upload up. case in point, in case you have 4 2 Volt panels under pressure in sequence, the finished voltage of the array could be 40 8 Volts. If the panels are under pressure so as that each and one and all their inputs and outputs are linked, or in parallel, those comparable 4 panels could have a entire voltage of 2 V, however the gadget could have 4 circumstances the present (Amps) of one panel.
What about a battery bank as a sink? By that, I mean the batteries absorb the low/high voltage, and if the solar panels do cut out, then the batteries pick up the load and keep the inverter going. Just a thought.
