question

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diet asked

ESS AC & DC coupled Feed-in excess solar charger power not full potential MPPT

the installation:

3 phase system ( 3X multiplus 2 48-3000-35) fw 475

mppt 150-60 with 3kw solar

smartshunt

color control gx fw 2.60

grid meter ET340

PV meter ET340

LIFEPO4 300AH 48V

ac coupled pv system 4,5kw

feed in grid active.

when i set in ESS the maximum charge power to 0w than delivers the mppt full power to the battery and in a high soc also to the grid. but always at maximum power.

but now is the problem that de multi don't charge the battery with the ac pv system.


when i set in ESS the maximum charge power to lets say 2000w than the multi is charging perfect to a max of 2KW. and de mppt also delivers the max he can. But than we reach a high soc and the multi keeps charging at 2kw but the mppt go down to zero. and than goes also the multi down.

but i want that the mppt also delivering the max output always. and feed all excess power in to the grid.

thx


ESS
2 |3000

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