Mass Combi in a grid-connected solar
power system with energy storage
The use of local energy storage combined with a grid connected system
with solar panels in a home or company is increasingly popular.
Generated solar energy that is not immediately consumed
is stored in the batteries for use in the mornings and
evenings when the consumption is (usually) higher than
the available solar energy.
AC Power Analyser
AC Power Analyser
in a home
any PV inverter
Using energy storage significantly increases the self-
consumption (i.e., the amount of generated solar energy that
is actually used). Benefits include cost savings through reduced
power consumption from the electricity grid, the certainty of
using self-generated green energy, and increased autonomy.
Another relevant benefit is the back-up function in case of
power failures in the electricity grid.
Below is an example of a grid-connected solar energy system
with energy storage. The Mastervolt products in this system are
aligned via MasterBus to ensure that power consumption via the
electricity grid is reduced to a minimum. When the sun shines,
the system will use the solar energy in the following priority
Powering the AC loads.
Charging available batteries.
Returning the surplus solar energy to the electricity grid.
When there is less solar energy available than needed,
the energy stored in the batteries will be used first.
Only when the batteries are ‘empty’ (= the minimal
state of charge required for maintaining their lifespan)
power from the electricity grid will
be used. This means you always
use as much locally generated
energy as possible and are ensured
of a reliable power supply. In
case of a failure in the electricity
grid, the Mass Combi will simply
take over the power supply
230 V grid
Lithium Ion battery
Daily energy use.
Generated solar energy.
Direct consumed solar energy.
Surplus solar energy, available for storage.