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allswell avatar image
allswell asked

Is my solar actually charging anything?

I’m a bit confused by this. We are currently discharging at -136w but our solar is bulk charging at 65w so shouldn’t we be discharging at a rate of 138w (load) - 65w (solar) = 73w discharge?


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MPPT Controllerssolarsmart solar set-up help
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1 Answer
pwfarnell avatar image
pwfarnell answered ·

There will be power losses in the inverter generating the 138W which could easily be of the order of 50W if it is a large inverter. There will be a small voltage drop from MPPT causing a very small power loss. The Cerbo GX or whatever you are using for monitoring will be using a few Watts of power as well. At present the solar is just keeping up with overheads.

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