2.
Self-consumption mode
For the general mode of operation and depending on the energy coming from
the photovoltaic panels, there are two different situations:
a)
When the demand for electricity consumption is lower than the energy
produced by photovoltaic panels, the Inverter transforms the DC into AC
to meet the demand for electricity, while charging the batteries with
excess power. In this way energy is accumulated for later use at times
when energy production is not sufficient.
b)
When the demand for electricity consumption exceeds the energy
produced by photovoltaic panels, the Inverter transforms the DC into AC
and takes the missing power from the batteries or the grid, depending on
whether the batteries are charged or not, to meet the demand for
electricity.
i.
When the batteries are sufficiently charged, the inverter transforms the
energy stored in DC to AC to 220V to supply the load. When the
batteries are left with the minimum charge level that allows them to
ensure a proper operation, they are automatically disconnected to
protect the system.
