SMA SUNNY HOME MANAGER - Manual (Page 15)

SMA Solar Technology AG 3 Product Description
User Manual HoMan_Portal-BA-en-17 15
Support for Increased Self-Consumption
Self-consumption means that the PV power is consumed at the site where it is generated.
In every household, there is "natural" self-consumption, as loads are operated while PV power is
produced (e.g. oven) and because certain loads continuously consume current (e.g. refrigerators,
devices in standby mode). If the PV system produces a lot of PV power, it is possible that only a part
of the PV power will be self-consumed. The excess PV power is fed into the utility grid.
A higher self-consumption quota can be achieved if loads are specifically switched on when excess
PV power is available.
The following functions of the Sunny Home Manager make it possible to increase the
self-consumption quota:
Function Explanation
Creation of a PV yield
forecast The Sunny Home Manager continuously logs the energy generated by
the PV system. It also receives location-based weather forecasts via the
Internet* .
Based on this information, the Sunny Home Manager creates a PV
yield forecast for the PV system.
Creation of a load profile The Sunny Home Manager logs the PV generation, the grid feed-in,
and the purchased electricity. Based on PV generation, grid feed-in and
purchased electricity, the Sunny Home Manager determines how
much energy is typically consumed at certain times and uses this to
create a load profile for the household. This load profile can be
different for each day of the week.
The Sunny Home Manager obtains the PV generation data from the
connected SMA inverters, from an SMA Energy Meter, or from
another energy meter. The Sunny Home Manager receives the data on
grid feed-in and purchased electricity from one SMA Energy Meter or
at least one other energy meter.
Control of
SMA radio-controlled
sockets Specific loads connected to SMA radio-controlled sockets can be
switched on and off by the Sunny Home Manager. The
Sunny Home Manager uses the PV yield forecast and the load profile
to determine favorable time periods for optimization of internal power
supply and self-consumption. In accordance with the PV system
operator's specifications and taking the determined time periods into
account, the Sunny Home Manager controls switch-on and switch-off
of the loads.
Also, SMA radio-controlled sockets provide the facility to individually
monitor and record the energy consumption of loads.