XOLTA BAT-5 Manuel utilisateur

Advanced energy storage systems

for solar system installations

BATTERY SYSTEM MANUAL

XOLTA COMPACT BAT-5 AND BAT-10

TABLE OF CONTENTS

1. Safety information and legal terms

1.1 Document purpose and structure ................................................................................................................. 3

1.2 Important safety Instructions ....................................................................................................................... 3

1.3 Actions in case of emergency situations ..................................................................................................... 4

1.4 XOLTA approved, authorized installers ........................................................................................................ 6

1.5 Safe disposal of lithium-ion batteries .......................................................................................................... 6

1.6 Disclaimer ...................................................................................................................................................... 6

1.7 Legal ............................................................................................................................................................... 6

1.8 Copyright ........................................................................................................................................................ 7

1.9 Voiding of warranty ....................................................................................................................................... 7

1.10 Abbreviations ................................................................................................................................................. 7

2. Introduction

2.1 About the XOLTA Compact BAT-5 and BAT-10 ............................................................................................. 8

 2.2 XOLTACompactBESSbenets .................................................................................................................... 8

2.3 Maximizing consumption of solar power .................................................................................................... 8

2.4 Modularity and scalability of XOLTA BAT-5 and XOLTA BAT-10 .................................................................. 9

 2.5 Keyspecications ....................................................................................................................................... 10

3. XOLTA Battery Energy Storage System

3.1 Main features ............................................................................................................................................... 11

3.2 Hardware description .................................................................................................................................. 12

3.3 Software description ................................................................................................................................... 13

4. System installation and operation

4.1 Delivery inspection ...................................................................................................................................... 14

4.2 Location requirements ................................................................................................................................ 14

4.3 Installation procedure ................................................................................................................................. 14

4.4 System operation ......................................................................................................................................... 16

4.5 Maintenance requirements ......................................................................................................................... 16

4.6 Lifetime and system reliability .................................................................................................................... 16

4.7 Installation and commissioning ................................................................................................................. 16

5. Registering for the XOLTA Web App

5.1 Register User and Device ............................................................................................................................ 17

1.1 Document purpose and structure

The purpose of this manual is to provide users and installers of the XOLTA BAT-5 and BAT-10 Compact Battery

Energy Storage System (BESS) with an overview of system installation, functionality, and operation. Through

out this manual, the product is referred to as XOLTA Compact BESS or XOLTA BESS.

The document is organized as follows:

Chapter 1 sets out important safety information, what to do in emergency situations, and legal information.

Chapter 2 gives a brief introduction to the XOLTA BESS system and key specication parameters.

Chapter 3 describes the main features of the XOLTA Compact Bess system and gives an overview of the hardware.

Chapter 4 deals with system installation and operation.

Chapter 5 describes how to access the XOLTA Web App to monitor the XOLTA Compact BESS online.

1.2 Important safety instructions

The XOLTA Compact BESS installation and servicing should only be performed by XOLTA certied installers.

As a consequence, XOLTA holds no liability for property damage or injury caused by system modications

or repairs undertaken by unqualied personnel or due to failure to follow the following important safety

instructions.

The safety instructions have been divided into:

WARNING - indicates a dangerous situation which, if not avoided, could result in injury or death.

CAUTION - indicates a situation where damage to the equipment or injury may occur.

IMPORTANT SAFETY INSTRUCTIONS

Read the entire document carefully before installing or using the XOLTA Compact BESS.

RISK OF EXPLOSION:

Do not apply any external force to the XOLTA Compact BESS.

Avoid physical damage to the battery. Keep the XOLTA Compact BESS away from where it may accidentally

be physically damaged, such as close to where a car is to be parked in a garage.

Do not dispose of the XOLTA Compact BESS in re.

RISK OF FIRE:

Keep the system away from ammable objects and heat sources. Avoid installation in places prone to direct

sunlight.

Do not expose the battery system to temperatures more than 50°C.

RISK OF ELECTRICAL SHOCK:

There are high voltages present on AC and DC cables. There is a risk of serious injury or death due to electrical

shock. Do not remove the cover. Report any external cable/wire damage to XOLTA or your local XOLTA system

installer. Do not touch uninsulated wires.

1 SAFETY INFORMATION AND LEGAL TERMS:

Never use a system if it is defective, damaged or broken.

Never attempt to disassemble, repair, modify the product or use it in any way other than as described in this

manual. Repairs or replacement of components must only be performed by a XOLTA certied technician.

Never immerse the XOLTA Compact BESS in water or other uids.

RISK OF DAMAGE:

Do not expose the battery system to temperatures below -25°C or more than 50°C (30°C during operation)

Do not place any objects on top of or underneath the XOLTA Compact BESS. This might lead to improper

product operation or problems with thermal management.

Never use any aggressive solvents or chemicals to clean the XOLTA Compact BESS. The product cover

should only be cleaned with soap and water or regular household dishwashing detergent (not automatic

dishwasher detergent).

OTHER PRECAUTIONS:

The product should not be used for any purpose other than that described in this manual.

The product should not be installed in combination with third party storage products.

Unpleasant smells or odors may indicate electrolyte leakage from the battery cell(s). If you notice such an

odor, switch the system off immediately at the electrical panel and contact XOLTA. If installed indoors,

ventilate the room and avoid inhaling the odor.

The XOLTA Compact BESS is heavy. Suitable lifting equipment is strongly recommended.

Do not paint any part of the product.

Do not open the battery modules.

For long term storage (longer than 1 month), the battery should be charged to 40% charge and then disconnected

from the grid.

When the product is to be disposed of, follow all relevant local laws and regulations.

NOTE! Failure to comply with the conditions of the warranty and the information specied in this document invalidates

any warranty claims.

1.3 ACTIONS to take in emergency situations

The XOLTA Compact BESS is designed to be very safe. It monitors essential parameters of the battery system

and protects the battery from damage. The main battery safety measures are shown in Table 1.1 below.

Table 1.1:

List of main safety

features in XOLTA

Compact BESS

State of the art battery cells with excellent safety performance (LFP technology)

State of the art battery management system (BMS) ensuring over/under voltage and

over/under temperature monitoring for each individual battery cell

Battery cut-oﬀ relay controlled by the BMS

Temperature sensors monitoring battery system temperature

Active battery current control depending on battery cell temperature, voltage and state

of charge (SoC)

System diagnostics, error handling and automatic grid connection/disconnection

controlled by the site controller

Battery air humidity monitoring and prevention system

AC fuse and battery DC protective fuse

Despite all these built-in safety measures, emergency situations can still occur. In such emergencies, the

actions to take are as follows:

LEAKAGE

Toxic electrolyte leaking from the battery pack. Electrolyte is corrosive and odorous

ACTION

• Avoid any contact with the leaking liquid or gas.

– In case of electrolyte inhalation – seek immediate medical help.

– In case of electrolyte coming into contact with skin - wash thoroughly with water and soap and seek

medical help.

– In case of electrolyte coming into contact with eyes - rinse eyes with water for 15 minutes and seek

medical help.

– In case of electrolyte ingestion / swallowing - force vomiting and seek immediate medical help.

• If installed inside:

- Leave the room and do not re-enter it.

- Ventilate the room if possible.

• Contact XOLTA.

FIRE

Fire may occur as a consequence of physical damage or external sources of heat and re. Hazardous

fumes such as carbon dioxide, carbon monoxide and hydrocarbons are emitted during battery res.

ACTION

• Disconnect the power from the battery system at the electrical panel (if possible without getting too close

to the battery and without inhaling fumes).

• Never try to extinguish a battery re yourself. If battery cells catch re, only qualied reghting personnel

with appropriate protective equipment should attempt to extinguish the re. Keep away from battery res

and contact emergency reghters.

• If components other than battery cells catch re, then ABC or carbon dioxide extinguishers can be used

to extinguish the re.

• Keep away from the battery and contact XOLTA.

IMMERSION IN WATER

Immersing the XOLTA Compact BESS in water risks causing a short-circuit and damage to the battery system.

ACTION

• Do not try to access the XOLTA Compact BESS.

• Disconnect the power (if possible without coming close to the battery).

• Never use a ooded battery system again – the system must be decommissioned.

• Keep away from the battery and contact XOLTA.

DAMAGED BATTERY

Any sign of physical damage or abnormal behavior of the battery system (or its peripheral components)

should be treated with extreme caution.

ACTION

• Disconnect the power.

• Keep away from the battery and contact XOLTA.

• Never use the damaged battery system again.

1.4 XOLTA approved, authorized installers

XOLTA provides appropriate training to installation technicians for XOLTA systems.

The XOLTA Compact BESS must only be installed and commissioned by a XOLTA approved installer.

1.5 Safe disposal of Lithium-ion batteries

Li-ion batteries must be treated as hazardous waste and not be disposed of with regular household waste.

For safe disposal of an unusable XOLTA battery it can be delivered back to the manufacturer or importer

that originally sold the battery or to the dealer of a new industrial battery.

1.6 Disclaimer

We have taken every precaution to ensure that all information provided in this manual is correct and up

to date. However, to the extent permitted under the applicable laws, we assume no responsibility for damage

to persons and property arising as a result of following recommendations and/or procedures described in

this manual. Furthermore, we assume no responsibility for any infringements of rights of third parties which

may result from the use of this manual.

Product modications or changes to the product environment:

• Only use the storage system in its original state - without any unauthorized modications - and when it is

in proper working order.

• Safety devices must never be overridden, blocked or tampered with.

• The interfaces of the storage system must be wired in accordance with the product documentation.

• An appropriate and readily accessible disconnect device shall be incorporated in the xed wiring.

• All repairs on the storage system must be performed by authorized service technicians only.

• The replacement of battery modules must be undertaken by authorized service technicians only. When

replacing batteries, replacement must be with the same type and number of batteries or battery modules.

1.7 Legal

The system has been designed to ensure that an installed BAT-5 or BAT-10 and all its associated functionalities

behave safely under the predened operating conditions. However, please read all sections about safety and

precautions carefully before installation, operation, or undertaking service work on a XOLTA BESS. Failure

to do so could result in reduced system performance, damage to the system, personal injury or even death.

1.8 Copyright

described in this manual at any time without further notice. This manual may be photocopied or otherwise

distributed only to the extent that this is strictly necessary for the correct operation and installation of a

XOLTA Compact BESS.

1.9 Voiding of warranty

XOLTA does not assume any direct or indirect liability for any damage or loss caused if:

• The Covered Products are not continuously connected to the internet via LAN cable whereby XOLTA cannot

monitor the performance of the Covered Products;

• The Covered Product has not been stored, transported, set up or installed in an appropriate and professional

manner, in accordance with technical standards and regulations, in accordance with the respective installation

manual of the Covered Products or in accordance with instructions of XOLTA;

• The Covered Product has been operated contrary to their intended use or contrary to the instructions in

the respective installation manual for the Covered Product;

• The Covered Products were constantly out of service due to Purchaser for a period of more than six months

after the initial installation;

• The Covered Product has not been serviced properly and professionally or according to technical standards

or the maintenance instructions of Covered Product;

• The Covered Product has been exposed, even temporarily, to vibrations that not only insignicantly exceed

the usual extent of vibrations caused by transport and installation;

• The Covered Product has been improperly altered or otherwise tampered with by the person entitled to

the Warranty or third parties;

• An overvoltage has occurred in the power grid to which the Covered Products are connected;

• The Covered Product have been exposed to force majeure (in particular lightning, re, earthquakes, natural

disasters) or harmful environmental conditions such as air pollution, salt water or sulphur corrosion;

NOTE! Always refer to the Terms and Conditions document delivered by XOLTA for warranty conditions.

1.10 Abbreviations

Table 1.2:

List of abbreviations

used in this XOLTA

Compact BESS

manual

BESS Battery Energy Storage System

BMS Battery Management System

BoL Beginning of Life

BPU Battery Protection Unit - a unit containing switches and fuses for battery protection

DoD Depth of Discharge

EoL End of Life

GUI Graphical User Interface

MODBUS Serial communication protocol developed by Modicon

PV Photovoltaic

SoC State-of-Charge

TCO Total Cost of Ownership

2 INTRODUCTION:

2.1 About the XOLTA Compact BAT-5 and BAT-10

The BAT-5 and BAT-10 are Battery Energy Storage Systems (BESS) for residential or commercial use. With

nominal capacities of 5 and 10 kWh (usable 4.5 and 9kWh) respectively the batteries can be used with

smaller solar / photovoltaic (PV) installations. The batteries consist of lithium iron phosphate (LFP) based

lithium-ion battery cells as well as an integrated battery inverter.

The XOLTA Compact BESS is an AC-coupled battery designed for connection to single or three phase 230V

AC 50Hz electrical grids. It is designed to store electricity generated from solar panels in the lithium-Ion

battery and later convert stored energy back to alternating current (AC) electricity and feed this into the

power grid.

The all-in-one batteries work with any kind of solar installation or any other renewable energy source and

are connected directly to the electrical panel of the building. They are designed for both indoor and outdoor

installation and to withstand cold and heat.

The batteries come with 24/7/365 monitoring to ensure optimal performance. Production and consumption

gures and savings per day/month/year/lifetime can be seen in the XOLTA web app.

2.2XOLTACompactBESSbenets

The XOLTA BAT-5 XOLTA BAT-5 and BAT-10 are scalable battery energy storage systems designed for

residential and commercial use. The batteries are an essential enabler for the transition to renewable energy by

balancing out volatile energy production with consumption. The high energy density means little space is

required on an outside wall to store sufcient electricity to power building consumption during peak tariff hours.

High performance is assured by 24/7 monitoring via an Internet connection which allows external data such

as weather forecasts and anticipated demand for electricity to be used to optimize performance. The battery

systems connect to XOLTA’s intelligent cloud service and can be monitored using a web app (see Chapter 5).

2.3 Maximizing consumption of solar power

Solar power is often generated at different times of the day from when power is required. XOLTA batteries

store the excess solar energy generated during the daytime and release it again later when it is needed – for

example after sunset.

Put simply, there are two scenarios:

1.When your solar panels are generating enough electricity for your own needs, or more than you need at

that moment in time:

a. Solar power goes to your immediate own consumption.

b. Any excess solar power which you do not use is stored in the battery.

c. Once the battery is full, you can sell solar power to the grid.

2.When your solar panels are not generating enough electricity for your own needs:

a. The system draws power previously stored in the battery.

b. If the battery becomes empty, the system draws power from the grid.

This is called time-shifting – where you store excess electricity for later use. See gure 2.1.

Figure 2.1:

Illustration of

maximizing self-

consumption in the

most optimal situation

2.4 Modularity and scalability of XOLTA BAT-5 and XOLTA BAT-10

XOLTA BAT-5 and XOLTA BAT-10 can be connected in parallel on the AC side to meet higher battery power

and/or energy requirements. The parallel connection also enhances system reliability and availability.

In the parallel operation, the following scenario is possible:

• XOLTA BAT-5 and/or XOLTA BAT-10 systems work as one unit by equally sharing charge/discharge power;

Up to 3 XOLTA BAT-5 or up to 3 XOLTA BAT-10 battery systems can be connected on the AC side (both on

the same grid phase or the different grid phases). The resulting battery power and energy capability are

presented in Table 2.1 (XOLTA BAT-5) and in Table 2.2 ( XOLTA BAT-10).

Table 2.1: Battery

power and energy for

a different number

of parallel-connected

XOLTA BAT-5 battery

systems.

Table 2.2: Battery

power and energy for

a different number

of parallel-connected

XOLTA BAT-10

battery systems.

nergy shi

ted by batter

Even

oonMorn

olar production

Consum

BAT-5 UNITS 123

Nominal effect (kW) 3.6 7.2 10.8

Nominal energy (kWh) 5 10 15

Usable energy (kWh) 4.5 9 13.5

Connection 1P+N+E 2P+N+E 3P+N+E

BAT-10 UNITS 123

Nominal effect (kW) 3.6 7.2 10.8

Nominal energy (kWh) 10 20 30

Usable energy (kWh) 9 18 27

Connection 1P+N+E 2P+N+E 3P+N+E

2.5Keyspecications

Key specications of the XOLTA Compact BESS are shown in the following tables.

Key specications

for BAT-5

Key specications

for BAT-10

TECHNICAL PROPERTIES 1 BATTERY

Capacity 5 kWh

Grid connection voltage 1 x 230V AC

Ambient temperature rating -20°C to 35°C

Cabinet design Various color and material choices

Dimensions H:772mm x W:664.5mm x D:259.5 mm

Weight 70 kg

Enclosure protection rating IP55

Expected lifetime 15 years

Warranty* 10 years

Mounting Indoors/outdoors - wall mounted/freestanding

Self consumption (standby) <10W

Meetering concept 3-fase Modbus or TCP/IP

Island mode From 2022

Cell technology Li-ion LFP / Nominal voltage 48V

Low Voltage Directive (LVD) 2014/35/EU and

Electromagnetic Compatibility (EMC) 2014/30/EU

Standards UN38.3 classication for safe transportation

EN 61010-1: 2010 + A1: 2016, IEC 62619: 2017

EN 61000-6-2, Industrial level, EN 61000-6-4, Class A

* Region dependent and subject to service agreement

TECHNICAL PROPERTIES 1 BATTERY

Capacity 10 kWh

Grid connection voltage 1 x 230V AC

Ambient temperature rating -20°C to 35°C

Cabinet design Various color and material choices

Dimensions H:772mm x W:664.5mm x D:259.5 mm

Weight 105 kg

Enclosure protection rating IP55

Expected lifetime 15 years

Warranty* 10 years

Mounting Indoors/outdoors - wall mounted/freestanding

Self consumption (standby) <10W

Meetering concept 3-fase Modbus or TCP/IP

Island mode From 2022

Cell technology Li-ion LFP / Nominal voltage 48V

Low Voltage Directive (LVD) 2014/35/EU and

Electromagnetic Compatibility (EMC) 2014/30/EU

Standards UN38.3 classication for safe transportation

EN 61010-1: 2010 + A1: 2016, IEC 62619: 2017

EN 61000-6-2, Industrial level, EN 61000-6-4, Class A

* Region dependent and subject to service agreement

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