SMA sunny home manager - Page 19

Function Explanation
When used with SMA bat-
tery inverters:
Optimized discharge of
lead-acid batteries
The SunnyHomeManager uses the calculated load profile and the
yield forecast to control battery discharge. The battery is discharged
when the following criteria are met:
• It is possible for the battery to be discharged to a point where
sufficient storage capacity is free to absorb the amount of PV
energy forecast for the next battery charge.
• The discharged lead-acid battery can then promptly be
charged with excess PV energy.
Using these criteria, the lead-acid battery is conserved while making
optimum use of the battery capacity.
Transmission of SMAEn-
ergyMeter data to SunnyIs-
land systems
If an SMASpeedwire data module for SunnyIsland is installed in
the SunnyIsland, the SunnyHomeManager can send SMAEn-
ergyMeter data to the SunnyIsland system.
Transmission of energy me-
ter data to SunnyBackup
systems
If a BLUETOOTHPiggy-BackOff-Grid is installed in the
SunnyBackup, the SunnyHomeManager can transfer the energy
meter data to the SunnyBackup system.
* The data is not available in all countries.
** This function is not available in all countries.
Limitation of Active Power Feed-In
Local regulations, for example the Renewable Energy Sources Act (EEG) in Germany, can call for
permanent limitation of active power feed-in for your PV system - that is, a limitation of the active
power fed into the utility grid to a fixed amount or a percentage share of the installed nominal PV
system power. If required, ask your grid operator whether a permanent limitation of the active
power feed-in is necessary and whether you are allowed to use the SunnyHomeManager for this
purpose (see the Manufacturer's Declaration "Feed-In Management in Accordance with the
Renewable Energy Sources Act (EEG) 2012 with SunnyHomeManager (SHM) from SMA"
available at http://www.SMA-Solar.com). Using an SMAEnergyMeter or a suitable feed-in meter,
the SunnyHomeManager monitors the active power that is fed into the utility grid. If the active
power feed-in exceeds the prescribed limit, the SunnyHomeManager limits the PV generation of
the inverters accordingly.
The SunnyHomeManager avoids derating losses due to limitation of PV power generation by
taking the current self-consumption of the household into account. The SunnyHomeManager helps
to use excess PV power in households directly and increases the self-consumption quota as a result.
For PV systems with SMA battery inverters, the SunnyHomeManager preferentially uses the
derated active power to charge the battery.
3 Product Description
SMA Solar Technology AG
User Manual 19HoMan_Portal-BA-en-20