Sonnen sonnenBatterie eco 8.0/2,5 User manual

Operating instructions | for operators
sonnenBatterie eco 8.0
KD-436 • Part no. 22283 • Version 04 [email protected] • sonnen.de

Publisher
sonnen GmbH
Am Riedbach 1
D-87499 Wildpoldsried
Service number [phone]
Email [email protected]
Document
Document number 436
Part number 22283
Version 04
Valid for AU, NZ
Publication date 25/06/2019
9007199336626187
IMPORTANT
 Read this documentation carefully before installation / operation.
 Retain this document for reference purposes.
EN
Operating instructions sonnenBatterie eco 8.0

Table of contents
KD-436 | 22283 | EN | 04 iii
Table of contents
1 Information about this document........................................................................................................ 5
1.1 Target group of this document ................................................................................................... 5
1.2 Designations in this document .................................................................................................... 5
1.3 Explanation of symbols................................................................................................................... 5
2 Safety.............................................................................................................................................................. 6
2.1 Intended Use......................................................................................................................................6
2.2 Operating the storage system..................................................................................................... 6
2.3 Product modifications or changes to the product environment.................................... 6
2.4 Voltage inside the storage system ............................................................................................. 7
2.5 Handling the battery modules ..................................................................................................... 7
2.6 Conduct in case of a fire................................................................................................................ 7
3 Product description................................................................................................................................... 9
3.1 Technical data....................................................................................................................................9
3.2 Type plate .......................................................................................................................................... 10
3.3 Symbols on the outside of the storage system .....................................................................11
3.4 Function..............................................................................................................................................12
3.4.1 Basic principle.....................................................................................................................12
3.4.2 Feed-in limit.........................................................................................................................12
3.4.3 Intelligent charging management ...............................................................................14
3.5 Function of the sonnen Eclipse..................................................................................................16
4 Switching on the storage system ........................................................................................................17
4.1 Switching on the grid voltage .....................................................................................................17
4.2 Switching on the storage system...............................................................................................17
5 Using the optional display......................................................................................................................18
5.1 Activating the display.................................................................................................................... 18
5.2 Home screen.................................................................................................................................... 18
6 Internet portal............................................................................................................................................19
6.1 Logging into the internet portal.................................................................................................19
6.2 Using the overview page...............................................................................................................19
6.3 Using the status page.....................................................................................................................19
6.4 Using the control page................................................................................................................ 20
6.5 Using the history page................................................................................................................. 20
6.5.1 Elements of the power graph ....................................................................................... 21
6.5.2 Analysis of power diagram ............................................................................................ 22
6.5.3 Analysing pie charts.........................................................................................................23
6.6 Using the forecast page.............................................................................................................. 24
7 Maintenance...............................................................................................................................................25
7.1 Checking function..........................................................................................................................25
7.2 Cleaning .............................................................................................................................................25
8 Decommissioning.....................................................................................................................................26
8.1 Switching the storage system off.............................................................................................26

Table of contents
iv Operating instructions sonnenBatterie eco 8.0
9 Troubleshooting........................................................................................................................................27
10 Uninstallation and disposal ...................................................................................................................28
10.1 Uninstallation................................................................................................................................... 28
10.2 Disposal............................................................................................................................................. 28
ANNEX .........................................................................................................................................................29
11 Manufacturer's Warranty sonnen Australia Pty Limited........................................................... 30

Information about this document | 1
KD-436 | 22283 | EN | 04 5 / 36
1 Information about this document
This document describes the operation of the sonnenBatterie eco 8.0.
Read this document in its entirety.
Keep this document in the vicinity of the sonnenBatterie.
1.1 Target group of this document
This document is intended for the storage system operator.
1.2 Designations in this document
The following designations are used in this document:
Complete designation Designation in this document
sonnenBatterie eco 8.0 Storage system
1.3 Explanation of symbols
DANGER Extremely dangerous situation leading to certain death or serious injury if the
safety information is not observed.
WARNING Dangerous situation leading to potential death or serious injury if the safety
information is not observed.
CAUTION Dangerous situation leading to potential injury if the safety information is not
observed.
NOTICE Indicates actions that may cause material damage.
Important information not associated with any risks to people or property.
Symbol Meaning
►
Work step
1. 2. 3. … Work steps in a defined order
üCondition
• List
Table1: Additional symbols

2 | Safety
6 / 36 Operating instructions sonnenBatterie eco 8.0
2 Safety
2.1 Intended Use
The sonnenBatterie eco 8.0 is a battery storage system which can be used to store elec-
trical energy. Improper use of this system poses a risk of death or injury to the user or third
parties as well as damage to the product and other items of value. The following points
must therefore be observed in order to comply with the intended use of the prouct:
• The storage system must not be installed in any kind of combination.
• The storage system must be fully installed in accordance with the installation instruc-
tions.
• The storage system must be installed by a licensed electrician. Country-specific regula-
tions concerning electrical installations must be observed at all times.
• The storage system must only be used at a suitable installation location.
• The transport and storage conditions must be observed.
Especially the following uses are not permissible:
• Operation in flammable environments or areas at risk of explosion.
• Operation in locations at risk of flooding.
• Operation outdoors.
• Operation of the battery modules outside of its storage system.
Failure to comply with the conditions of the warranty and the information spe-
cified in this document invalidates any warranty claims.
2.2 Operating the storage system
Incorrect operation can lead to injury to yourself or others and cause damage to property:
• The storage system must only be operated as described in the product documentation.
• This device can be used by children from the age of eight (8) years old and individuals
with impaired physical, sensory or mental capabilities or individuals with limited know-
ledge and/or experience of working with the device, as long as they are supervised or
have been trained to safely use the device and understand the resulting risks of doing so.
Children must not play with the device.
2.3 Product modifications or changes to the product environment
• Only use the storage system in its original state - without any unauthorised modifica-
tions - and when it is in proper working order.
• Safety devices must never be overridden, blocker or tampered with.
• The interfaces of the storage system must be wired in accordance with the product doc-
umentation.
• An appropriate and readily accessible disconnect device shall be incorporated in the
fixed wiring.
• All repairs on the storage system must be performed by authorised service technicians
only.

Safety | 2
KD-436 | 22283 | EN | 04 7 / 36
• The replacement of battery modules must be performed by authorised service techni-
cians only. When replacing batteries, replace with the same type and number of batter-
ies or battery modules.
2.4 Voltage inside the storage system
The storage system contains live electrical parts, which poses a risk of electrical shock.
Therefore:
Do not open the storage system.
2.5 Handling the battery modules
The battery modules installed in the storage system are protected by multiple protective
devices and can be operated safely. Despite their careful design, the battery cells inside
the battery modules may corrode or experience thermal runaway in the event of mechan-
ical damage, heat or a fault.
This can have the following effects:
• High heat generation on the surface of the battery cells.
• Electrolyte may escape.
• The escaping electrolyte may ignite and cause an explosive flame.
• The smoke from burning battery modules can irritate the skin, eyes and throat.
Therefore, proceed as follows:
Do not open the battery modules.
Do not mechanically damage the battery modules (pierce, deform, strip down, etc.)
Do not modify the battery modules.
Do not allow the battery modules to come into contact with water (except when extin-
guishing a fire in the storage system).
Do not heat the battery modules. Operate them only within the permissible temperat-
ure range.
Keep the battery modules well away from sources of ignition.
Do not short-circuit the battery modules. Do not allow them to come into contact with
metal.
Do not continue to use the battery modules after a short circuit.
Do not deep-discharge the battery modules.
In the event that module contents are released:
Do not enter the room under any circumstance.
Avoid contact with the escaping electrolyte.
Contact the fire services.
2.6 Conduct in case of a fire
Fire may occur with electrical equipment despite its careful design. Likewise, a fire in the
vicinity of the equipment can cause the storage system to catch fire, releasing the con-
tents of the battery modules.
In the event of a fire in the vicinity of the product or in the storage system itself, proceed
as follows:

2 | Safety
8 / 36 Operating instructions sonnenBatterie eco 8.0
Only firefighters with appropriate protective equipment (safety gloves, safety clothing,
face guard, breathing protection) are permitted to enter the room where the burning
storage system is located.
There is a danger of electrocution when extinguishing fire while the storage system is
switched on. Therefore, before starting to extinguish the fire:
Switch off the storage system to electrically isolate it.
Switch off the mains fuses in the building.
If the storage system and/or mains fuses cannot be safely switched off:
Observe the minimum distances specified for the extinguishing agent used. The stor-
age system works with an output voltage of 400 V (AC) and is therefore considered a
low-voltage system.
• A storage system fire can be extinguished using conventional extinguishing agents.
• Water is recommended as an extinguishing agent in order to cool the battery modules
and therefore prevent thermal runaway in battery modules which are still intact.
Information on the battery modules:
• The battery modules have a nominal voltage of 48 V (DC) and therefore fall into the
range of protected extra-low voltage (under 60 V DC).
• The battery modules do not contain metallic lithium.

Product description | 3
KD-436 | 22283 | EN | 04 9 / 36
3 Product description
3.1 Technical data
sonnenBatterie eco 8.0/2,5 8.0/5 8.0/7,5 8.0/10 8.0/12,5 8.0/15
System data (AC)
Nominal voltage 400 V
Nominal frequency 50 Hz
Nominal power 1,100 W 2,500 W 3,300 W 3,300 W 3,300 W 3,300 W
Nominal current 1.6 A 3.6 A 4.8 A 4.8 A 4.8 A 4.8 A
Power factor range 0.9 capacitive ... 0.9 inductive
Current (Max. continous) 4.8 A
Max. output fault current 120 mA
Inrush current 0 A
Mains connection three-phase, L1 / L2 / L3 / N / PE
Max. ext. overcurrent protection 16 A, 3ph
Mains topology TN / TT
Mains connection fuse Miniature circuit breaker | Type B | 10 - 16 A
Battery data (DC)
Cell technology lithium iron phosphate (LiFePO4)
Nominal capacity 2.5 kWh 5.0 kWh 7.5 kWh 10.0 kWh 12.5 kWh 15.0 kWh
Usable capacity 2.25 kWh 4.5 kWh 6.75 kWh 9.0 kWh 11.25 kWh 13.5 kWh
Nominal voltage 48 V
Current (Max. continous) 75 A
Short-circuit current(ISC) 90 A
Min. number of battery modules 1
Max. number of battery modules 6
Dimensions / weight without extension cabinet (from 2.5 up to 5 kWh)
Dimensions (H/W/D) in cm 88/67/23 - - - -
Weight in kg 58 81 - - - -
Dimensions / weight with small extension cabinet (from 2.5 up to 10 kWh)
Dimensions (H/W/D) in cm 137/67/23 - -
Weight in kg 74 97 120 143 - -
Dimensions / weight with big extension cabinet (from 2.5 up to 15 kWh)
Dimensions (H/W/D) in cm 186/67/23
Weight in kg 85 108 131 154 177 200
Safety
Protection class I / PE conductor
Required fault current monitoring In TT networks: Residual current device (RCD) with a rated differential current of
300 mA; requirements on site must be observed.

3 | Product description
10 / 36 Operating instructions sonnenBatterie eco 8.0
Degree of Protection IP30
Rated short-withstand cur-
rent(ICW)
10 kA
Separation principle PV -> AC -
Separation principle Batt. -> AC galvanic isolation (functional insulation)
Power meter
Voltage measurement inputs Nominal voltage (AC): 230 V (L-N), 400 V (L-L) | max. connectible conductor
cross-section: 1.5 mm²
Clamp-on current transformer Max. measurable current: 60 A (standard), optional up to 400 A
Ambient conditions
Environment Indoor (conditional)
Operating temperature range1-5 °C ... 45 °C
Storage temperature range 0 °C ... 40 °C
Transport temperature range -15°C ... 50 °C
Max. rel. humidity 90 %, non-condensing
Permissible installation altitude 2,000 m above sea level
Pollution degree 2
Additional ambient conditions:
• The installation location must not be at risk of flooding.
• Installation room should be ventilated.
• The currently applicable building codes must be observed.
• Even floor, suitable for heavy loads.
• Observe fire control standards.
• Free from corrosive and explosive gases (ammonia content max. 20 ppm).
• Free from dust (especially flour dust or sawdust).
• Free from vibrations.
• Free access to the installation location.
• No direct sunlight.
3.2 Type plate
The type plate for the storage system is located on the outer surface of the system. The
type plate can be used to uniquely identify the storage system. The information on the type
plate is required for the safe use of the system and for service matters.
The following information is specified on the type plate:
• Item designation
• Item number
• Technical data of the storage system
1 Optimal: 5 °C … 30 °C | Derating possible below 5 °C / above 30 °C.

Product description | 3
KD-436 | 22283 | EN | 04 11 / 36
3.3 Symbols on the outside of the storage system
Symbol Meaning
Warning: flammable materials.
Warning: hazards due to batteries.
Warning: electrical voltage.
5 min
Warning: electrical voltage. Wait five minutes after switching off (capacitor
de-energising time).
kg
Warning: product is heavy.
CE mark. The product meets the requirements of the applicable EU directives.
WEEE mark. The product must not be disposed of in household waste; dispose
of it through environmentally friendly collection centres.
Observe the documentation. The documentation contains safety information.

3 | Product description
12 / 36 Operating instructions sonnenBatterie eco 8.0
3.4 Function
3.4.1 Basic principle
Illustration1: sonnenBatterie function
1 PV system 4 Measurement of consumption
2 Storage system 5 Public electrical mains
3 Consumers in building (e.g. washing machine,
hob, lamps, refrigerator, etc.)
The storage system (2) is connected to the PV system (1) and the public electrical mains
(5). Furthermore the current consumption of the consumers in the building (3) is con-
stantly measured (4).
Generation > Consumption
If the generation of power is greater than the consumption, there is a surplus of electrical
energy. In this case as much as possible of this surplus is used to charge the battery of the
storage system.
If the entire portion of the surplus can not be charged into the battery, the remaining sur-
plus is fed into the public electrical grid.
Consumption > Generation
If the consumption is greater than the generation of power, there is a deficit of electrical
energy. In this case the battery is discharged to even out as much of the deficit as possible.
If the entire deficit can not be compensated by discharging the battery, the remaining de-
ficit is covered by the public electrical grid.
3.4.2 Feed-in limit
PV systems are subject to a feed-in limit in some circumstances. The feed-in limit restricts
the PV system’s feed-in power at the mains connection point.

Product description | 3
KD-436 | 22283 | EN | 04 13 / 36
Example
• Nominal power of PV system: 10 kWp
• Power limit: 50%
• Maximum feed-in power: 5 kW
In this example, the feed-in power of 5kW must not be exceeded. The following figure
shows an example of the PV system’s production over the course of a day.
Illustration2: Example: feed-in limit at 50% of
nominal power
1 Charging of storage system
2 Switch-on of consumers via self-
consumption switch
3 Switch-on of consumers via
sonnenSmart plug
4 Midday peak, which must not be fed
into the electrical mains
To prevent production reduction – and therefore
energy loss – the excess energy is first stored in the
storage system(1) and consumption is increased by
switching on consumers(2,3). Production is only
reduced if these measures do not lead to the de-
sired limit.
Measures for limiting feed-in are explained in detail in the following. The individual meas-
ures are carried out one after the other. Only when one measure does not achieve the de-
sired reduction is the next measure introduced.
1. Charging of battery
Excess energy is directed to the storage system battery. In order for this to occur, there
must be sufficient storage capacity available in the battery. For this reason, on sunny days
it is often a good idea to reduce the charging power in the morning hours in order to re-
serve sufficient remaining capacity of the battery for midday. The charging behaviour is in-
telligently controlled for this purpose (see Intelligent charging management [P.14]).
2. Activation of the self-consumption switch
Consumers connected to the permanently wired switch output are switched on here.
3. Switch-on of consumers (via sonnenSmart plug)
The consumers are activated as soon as the feed-in limit is exceeded. The consumers are
deactivated again once the level has dropped below the limit and stayed there for at least
three minutes.
4. Reduction of PV power
Production is reduced via an integrated switch contact on the inverter. This limited the PV
inverter to a set power output. In order for this to occur, the inverter must support power
reduction using a switch contact or an external solution (e.g. a solar datalogger). Configur-
ation and connection are carried out by the electrician.

3 | Product description
14 / 36 Operating instructions sonnenBatterie eco 8.0
3.4.3 Intelligent charging management
The charging behaviour of the storage system is controlled via intelligent charging man-
agement. The aims of this intelligent control are as follows:
• Storage of the midday peak in the storage system (sufficient storage capacity must still
be available for this)
• Full charging of the storage system until evening (so there is sufficient energy for night-
time)
The intelligent charging management only takes effect in storage systems which are oper-
ated together with PV systems for which a feed-in limit is activated.
Functional principle of intelligent charging management
The storage system is connected to a server via the internet. This server creates a con-
sumption and production forecast for the individual hours of the day in question. The pro-
duction forecast is based on
• the weather forecast,
• the nominal power of PV system and
• the orientation of the PV system.
The consumption forecast is calculated based on actual consumption from the previous
week.
Illustration3: Production forecast (yellow) and
consumption forecast (blue)
The figure on the left shows an example of a pro-
duction and consumption forecast. In this example,
an average consumption of 0.5kW and a produc-
tion of approx. 9kW are calculated for the time
between 10 and 11a.m.
Illustration4: Forecast surplus
Subtracting the consumption (blue) from the pro-
duction (yellow) gives you the forecast surplus
(8.5kW in this example). The consumption bars
have been placed on top of the production bars in
the diagram.
In this example, feeding in the entire surplus at midday would lead to the feed-in limit (of
5kW) being exceeded. For this reason it is ideal if as much of the energy surplus as possible
exceeding the feed-in limit is used to charge the battery.

Product description | 3
KD-436 | 22283 | EN | 04 15 / 36
Illustration5: Charging behaviour without in-
telligent charging management
yellow forecast production
blue forecast consumption
green charging of storage system
Without intelligent charging management, the stor-
age system would immediately use the surplus to
charge the battery (until the maximum charging
power is reached). In this example, this behaviour
would result in the storage system being fully
charged before midday, meaning that the surplus
exceeding the feed-in limit after this point would
no longer be able to be stored in the battery.
To stay within the Feed-in limit [P.12], the power of the PV system would need to be re-
duced. This would lead to an energy loss and therefore also a financial loss. Intelligent char-
ging management attempts to avoid fully charging the battery too early. To this end, the
storage system receives a charging plan for the day early in the morning from the server.
P
t
50%
12:00 13:00 14:00 15:00 16:00 17:0011:0010:00
9:008:00
7:006:00
10 kW
9 kW
8 kW
7 kW
6 kW
5 kW
4 kW
3 kW
2 kW
1 kW
0 kW
Illustration6: Charging behaviour with intelli-
gent charging management
yellow forecast production
blue forecast consumption
green charging of storage system
In this example, charging of the storage system is
avoided in the morning hours. At midday the stor-
age system is charged only enough so that the
feed-in limit can be observed.
Intelligent charging management adaptation
After commissioning the intelligent charging management system has to adapt to condi-
tions on site. The production forecast, for example, depends on the weather forecast and
the orientation, roof angle, shading, etc. of the PV system.
The consumption forecast depends on individual consumption and the electrical con-
sumers in use.
Statistical consumption and production data is required in order for intelligent charging
management to take these complex factors into account. Since none of this necessary in-
formation exists immediately after the storage system is installed, this data must first be
collected. For this reason, intelligent charging management requires approx. seven days
for calibration. During this time the charging behaviour may not be ideal. After these seven
days have passed, intelligent charging management will have adapted to match your indi-
vidual consumption and production profile.
Intelligent charging management limits
The effectiveness of intelligent charging management depends on how accurate the pro-
duction and consumption forecasts are.

3 | Product description
16 / 36 Operating instructions sonnenBatterie eco 8.0
• An incorrect weather forecast results in an incorrect production forecast.
• The consumption forecast depends on consumption from the previous week. Drastically
fluctuating consumption therefore negatively impacts the quality of the consumption
forecast. The more consistent the consumption, the more accurate the consumption
forecast.
3.5 Function of the sonnen Eclipse
The sonnen Eclipse (light ring in the sonnen logo on the front of the storage system) indic-
ates the current status of the storage system when it is switched on.
The following operating statuses may be indicated:
Colour Mode Operating status
White Pulsing Storage system is in normal operation.
Green Pulsing The connection to the public electrical grid is interrupted. If there is still
no connection to the public grid after about five minutes, the sonnen
Eclipse switches off.
For storage systems with emergency power function only*: storage sys-
tem is in emergency operation.
Orange Pulsing No internet connection.
For storage systems with emergency power function only*: an overload
has been detected in emergency operation.
Red Constant Problem detected.
Contact the installer of the storage system or the sonnen service
team!
*Optional accessories sonnenProtect or sonnenBackup-Box.

Switching on the storage system | 4
KD-436 | 22283 | EN | 04 17 / 36
4 Switching on the storage system
The storage system can only be switched on if the public network voltage has
been switched on first.
4.1 Switching on the grid voltage
Switch on the grid voltage using the AC miniature circuit breaker.
4.2 Switching on the storage system
NOTICE If the storage system can’t be switched on:
Do not attempt switching on the storage system more than three times.
Contact the service!
ðFurther attempts can damage the battery modules.
Fuse switch F1 establishes the connection between the battery and the inverter.
Illustration7: Fuse switch F1 on the top side of
the storage system
Switch on fuse switch F1.
The storage system then starts up and performs a self-test. Once the self-test is success-
ful, the storage system is ready to operate.
When the storage system is in normal operation, the sonnen Eclipse pulses white (see
Function of the sonnen Eclipse [P.16]).

5 | Using the optional display
18 / 36 Operating instructions sonnenBatterie eco 8.0
5 Using the optional display
The storage system is not delivered with a display as standard. Retrofitting the
display is not possible.
The installed display is a multi-touch screen. It can be controlled with movements of the
hand (like a standard smartphone).
5.1 Activating the display
When the display is not touched for a longer period of time, the screen goes dark.
Touch the display anywhere to reactivate the screen.
5.2 Home screen
The home screen displays the most important current data for the storage system.
72
%
14
%
BEZOGEN
Ladezustand
86
%
AUTARKIE
innerhalb der letzten 7 Tage
6 kWh Batterie
Illustration8: Home screen
No. Description
1 Self-sufficiency. Indicates the proportion of total consumption over the last 7 days which
was self-generated.
2 Usage. Indicates the proportion of total consumption over the last 7 days which was
drawn from the public grid.
3 Stage of charge of the storage system. Indicates the proportion of total capacity that is
currently available.
4 Total capacity. Indicates the power that can be taken from a fully charged battery.
5 Main menu button.
Press the button to switch to the main menu.
Table2: Description of the home screen components

Internet portal | 6
KD-436 | 22283 | EN | 04 19 / 36
6 Internet portal
You can access current and saved data for your storage system on the internet portal.
6.1 Logging into the internet portal
To log into the internet portal, proceed as follows:
1. Enter the following web address in the browser:
https://my.sonnen-batterie.com
2. The login window opens, as shown on the left.
3. Enter your access data, which was provided as
part of the scope of delivery.
4. Click on the Log in button.
6.2 Using the overview page
The overview page shows a summary of all of the
information which can be seen on the portal.
You can click on the status, control, history
and forecast buttons in order to open the
specific page.
6.3 Using the status page
The status page shows the following current
measured values:
• Current generation
• Current consumption
• Current usage/current feed-in
• Current charging status

6 | Internet portal
20 / 36 Operating instructions sonnenBatterie eco 8.0
6.4 Using the control page
The control page contains an overview of the con-
nected sonnenSmart-Plugs.
Click on the relevant button to select a smart
plug (e.g. washing machine).
Click on the é or ê button to change the order
of the smart plugs.
Click on Add sonnenSmart-Plug to set up a new Smart-Plug. The program guides you
through the necessary steps.
The name of the smart plug can be selected and re-
placed.
Click > to confirm the new name of the smart
plug.
Click on the ON or OFF button to activate or
deactivate the smart plug (manual control).
To have the storage system automatically activ-
ate or deactivate the smart plug, click on the
AUTO button.
Under ‘Self Consumption Maximization’, set the excess energy level at which the con-
sumer should be activated and the minimum duration for which the consumer should
stay activated (minimum activation time). These parameters must be adapted to suit
the connected consumer.
Example: Your washing machine has a nominal power of 2200 watts. Your selected washing
programme takes one hour and 38 minutes to complete. Enter the following values under
‘Self Consumption Maximization’: 2200 W; 98 minutes.
Confirm the values by clicking on >.
Click on the Remove sonnenSmart-Plug button to remove the selected smart plug
from storage system control.
6.5 Using the history page
The history page shows all relevant energy flows in a graph.