SMA SUNNY HOME MANAGER - Manual (Page 16)

3 Product Description SMA Solar Technology AG
16 HoMan_Portal-BA-en-17 User Manual
Control of Miele devices
via the Miele@home
system The Sunny Home Manager can control devices from Miele & Cie. KG
via a Miele@home Gateway**. 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 Miele devices.
Direct control of devices
via a data exchange
protocol The Sunny Home Manager can control devices using a data exchange
protocol defined by SMA Solar Technology AG by communicating
with the devices either directly or via an appropriate gateway using
Ethernet. The device reports its energy demand to the Sunny Home
Manager and the Sunny Home Manager allocates the available
energy to the device taking the PV yield forecast and the consumption
forecast into account. You can find out whether the data exchange
protocol used by the device is supported by the Sunny Home Manager
in the device manual or from the device manufacturer.
When used with SMA
battery inverters:
Prevention of derating
losses The Sunny Home Manager prevents derating losses which can arise
due to the limitation of active power feed-in. Taking the PV yield
forecast and the consumption forecast into account, the timing and
duration of battery charging are also controlled and the battery is
charged optimally in accordance with the available energy supplies,
if excess PV energy cannot otherwise be used.
When used with SMA
battery inverters:
Optimized discharging
behavior for lead-acid
batteries The Sunny Home Manager uses the calculated load profile and the PV
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.
The use of these criteria ensures that the lead-acid battery is conserved
while making optimum use of the battery capacity.
Transmission of
SMA Energy Meter data
to Sunny Island systems If an SMA Speedwire Sunny Island data module is installed in the
Sunny Island, the Sunny Home Manager can send SMA Energy Meter
data to the Sunny Island system.
Transmission of energy
meter 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.
* Data is not available in all countries
** This function is not available in all countries.
Function Explanation