Alpha ESS EMS Reference manual

V01
Residential Product EMS
Introduction Manual

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Version Information
Version
Date
Content
V01
21062019
New

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Content
Version Information ......................................................................................... 2
Content.............................................................................................................. 3
Self-Consumption Optimization.................................................................. 4
Backup (UPS) ............................................................................................... 5
2.1 Setting on EMS LCD.............................................................................. 5
2.1.1 SMILE5..............................................................................................................5
Load Shifting................................................................................................ 6
3.1 Setting on EMS LCD.............................................................................. 6
3.1.1 SMILE5..............................................................................................................6
3.2 Setting on AlphaCloud.......................................................................... 7
Peak Shaving................................................................................................ 8
4.1 Setting on EMS LCD.............................................................................. 8
Max Feed-in .................................................................................................. 9
5.1 Setting on EMS LCD.............................................................................. 9
5.1.1 SMILE5..............................................................................................................9
5.2 Setting on AlphaCloud........................................................................ 10
Aux Contact................................................................................................ 11
6.1 Setting on AlphaCloud........................................................................ 11
Backup Box ................................................................................................ 14
7.1 Load Management Function Setting on EMS LCD............................ 15
7.2 Load Management Function Setting on AlphaCloud........................ 16

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Self-Consumption Optimization
This is default function logic of AlphaESS energy storage system.
The typical electricity demand curve usually doesn’t meet the PV generation curve.
By storing the surplus PV generation into battery storage unit, it can maximize PV
generation and reduce electricity bill.

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Backup (UPS)
Storage system will provide the power to the critical loads when the grid fails.
The system can switch into an off-grid mode when a power outage occurs or grid power
supply is insufficient.
2.1 Setting on EMS LCD
2.1.1 SMILE5
Users can also set UPS emergency priority or UPS emergency reserve to meet the
needs of different families for stored electricity.
Please set the UPS Reserve SOC on EMS LCD

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Load Shifting
Reduce customer's electricity bill by storing electricity during off-peak time and shift
energy to be used at peak time.
Especially when the electricity tariff is different in one day, you can set battery grid
charging time on EMS LCD, on AlphaCloud monitoring portal or through AlphaESS
App.
3.1 Setting on EMS LCD
3.1.1 SMILE5
Click the mode then set up force charge mode as enable.
Set the charge and discharge time.

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3.2 Setting on AlphaCloud
End user can set the grid charging time and battery discharging time on the portal or
through AlphaESS App.

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Peak Shaving
The goal is to avoid the upgrade of transformer capacity to supply the peaks of the
highly variable loads. Energy storage provides a fast response and emission-free
solution. The ESS benefits customers on their bills by saving cost on infrastructure and
peak demand charges.
4.1 Setting on EMS LCD
This function is now realized by EMS3.0 platform and you can set the Pmeteroffset
parameter on EMS LCD.
The default PmeterOffset of the system is 0, that means the peak shaving function is
off.
If this function is on, EMS will adjust the PCS output power so that the total grid power
will meet the set value.

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Max Feed-in
In some countries there is regulation for PV feed-in rate or it must be zero export.
After setting the PV capacity you can set this parameter on EMS LCD or on Alpha
Cloud portal. Then the grid feed-in power from the PV generation will be limited.
Note: in AC mode system Alpha ESS can’t limit other PV-inverter generated
power.
5.1 Setting on EMS LCD
5.1.1 SMILE5
Set on-grid capacity (How much kWp is installed with the on-grid inverter), storage
capacity (How much kWp is installed with the AlphaESS storage inverter) and number
of PV strings (MPPT number).
Click the Grid Function to set up relevant parameters about the grid.

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5.2 Setting on AlphaCloud
Installer can set the max feed-in rate on the other information interface of the “System
Setup” page.

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Aux Contact
Aux contact function is used for switching on/off other devices automatically or based
on defined schedules
Aux contact settings is only for the end user, whose energy storage system has already
aux contact function. The device should have dry contact function and has been
connected correctly with the system. Or this device can connected correctly with the
system by using a suitable relay.
Currently aux contact function is available on Storion-SMILE-5, later it will be
available on Storion-SMILE-T10.
6.1 Setting on AlphaCloud
Under aux contact function, the UPS mode should be disable.
After wiring the aux contact function can be set on the server.
1. Click “System setup” and click “AUX Contact setting”, then the following inter-face
appears:
2. Click AUX Contact Channel to choose AUX 1 or AUX 2. Two devices can be
controlled.
3. Click “enable” to set if the function for the chosen channel is available.
4. Click “Control Mode” to set the function mode, we have 3 modes for the AUX contact:
On, Off and Auto.
a. Control Mode On

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Set the time and days for switching on like the following figure. You can set one or two
time periods. In the set periods the Aux contact will be switched on, outside the set
periods the Aux contact doesn’t work.
If the two periods overlap, only the first period will be active. In this mode the normal
self-consumption logic will be used.
b. Control Mode Off
Set the time and days for switching off like the following figure. You can set one or two
time periods. In the set periods the Aux Contact will be switched off. If you don’t set
the period the function doesn’t work.
If the two periods overlap, only the first period will be active. In this mode the normal
self-consumption logic will be used.
In this mode the normal self-consumption logic will be used.
c. Control Mode Auto
It means the Aux contact will be switched automatically on and off according to the
following logic.
Under Auto Mode, the period control function doesn’t work. In this mode the following
further specifications should be set.
c.1 You can set the SOC to activate. There are three modes can be set:
1. “≥”, namely when SOC ≥ given value, it works.
2. “≤”, namely when SOC ≤ given value, it works.
3. “disable“, namely the Aux contact control is not related to the SOC value.
c.2 You can also set surplus energy range, namely the feed-in condition.
Set the feed-in power values as the following figure.
When the feed-in power > left given value, the Aux contact will be switched on.
When the feed-in power < right given value, the Aux contact will be switched off (or
back to the initial situation).

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c.3 The delay, duration and pause time also can be set to prevent too frequent switch
on and off.
Delay
The Aux contact will work (be switched on/off) after the given time if some condition is
fulfilled.
Duration
After the Aux contact being switched on, it will not be switched off before the given time
passed.
Pause
After the Aux contact being switched off, it will not be switched on before the given time
passed
In this mode the normal self-consumption logic will be used.

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Backup Box
For System SMILE5, SMILE-T10, SMILE-B3, Backup Box has these functions:
Auto Switching on gird and off grid;
No need change the distribution box wiring;
Provide power to all loads in every phase in off-grid situation;
Load management in Off grid situation, you can set parameters on EMS
LCD, on AlphaCloud portal or through AlphaESS App.
Use as Meter for DC/AC/Hybrid Coupling. (Meter function will be available
later by T10)
The normal system without backup box is as below diagram:
If the grid fails, the energy storage system will only provide power to the critical loads
which are connected to the backup port.

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If the backup box is used as meter and connected in the whole system, the diagram is
as below:
If the grid fails, the energy storage system will provide power to all loads.
7.1 Load Management Function Setting on EMS LCD
Enter “Setting”page and select “Function”. Enter “Function”page and select “Backup
Box”. Enter “Backup Box”page and replace “No”to “Yes”. Press “Enter”button on EMS
to confirm.
Press “↓” button and enter “Backup Box”setting page to set up Priority and the SOC
to manage your loads.
NOTE: With the highest priority, the SOC must be lowest. You can set the priority
as 1, 2, and 3. If you set L1 as 1, L1 being the highest priority, then the SOC must
be set to the lowest. When the SOC is lower than your setting, the load will be
cut off in the order as you set.

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7.2 Load Management Function Setting on AlphaCloud
You can also set the load management parameters on the portal