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Silly question about 3kw solar, charger and battery
#11
The simplest way would be to have a regular mains powered battery charger switched when your solar input is high.

A typical grid tied solar panel installation usually runs high voltage DC (200-400V ish) & you don't want to mess with that.
Running off solar, DIY & electronics fan :-)
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#12
If you already have a grid tied setup, like the OP, you want to build an AC coupled system with a hybrid inverter like the Victron mentioned previously. If you look up those systems, they go between your current inverter and the panel/grid and either let it feed your house, charge batteries, or sell to the grid.
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#13
(05-02-2019, 12:46 PM)hazSolar Wrote: .....  they go between your current inverter and the panel/grid and either let it feed your house, charge batteries, or sell to the grid.

Victron inverter/chargers are installed parallel to the existing grid tied installation not "between".
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