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XOLTA BAT-80 AC User Manual

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Summary of Contents for XOLTA BAT-80 AC

  • Page 1 XOLTA BAT-80 AC User manual...

  • Page 2: Table Of Contents

    2.2 Important safety instructions 2.2.1 Risks 2.2.2 Other precautions 2.3 What to do in an emergency? 2.4 Certified electrical installers with XOLTA training 2.5 Safe disposal of Lithium-ion batteries 2.6 Cyber security 2.7 Voiding of warranty Chapter 3: System overview 3.1 Introduction to BAT-80 AC...
  • Page 3 4.3.2 Transitional sequences 4.3.2.1 Initialization 4.3.2.2 Startup 4.3.2.3 Shutdown 4.4 Monitoring the BESS Chapter 5: API access Chapter 6: Receiving and installing BAT-80 AC 6.1 Inspect the delivery 6.2 Site requirements 6.3 Clearance requirements 6.4 Install BAT-80 AC 6.5 System operation Chapter 7: Service and maintenance 7.1 Maintenance...
  • Page 4 7.4 List of spare parts Chapter 8: Decommissioning 8.1 Prepare BAT-80 AC for decommissioning 8.2 Decommision the battery packs 8.3 Decommission the electronic parts 8.4 Decommission the AC unit Chapter 9: Long term storage 9.1 Storage location requirements 9.2 Prepare for long-term storage 9.3 Storage procedure...

  • Page 5: Chapter 1: About This User Manual

    User manual | XOLTA BAT-80 AC Chapter 1: About this user manual The purpose of this document is to provide the operator of BAT-80 AC with an overview of system installation, functionality, service, maintenance, and operation. The document is organized as follows: Chapter 2: Safety and legal terms - covers important safety information, legal terms, and provides the list of actions to be taken during an emergency.
  • Page 6 User manual | XOLTA BAT-80 AC described in this manual at any time without notice. This manual may be photocopied or otherwise distributed only to the extent that is necessary for correctly operating and installing a XOLTA bat- tery energy storage system.

  • Page 7: Chapter 2: Safety And Legal Terms

    Chapter 2: Safety and legal terms 2.1 Intended use BAT-80 AC is a stationary energy storage system designed to be installed outside in an industrial environment free of salty mists and other aggressive atmospheres. Only a skilled electrician trained in XOLTA products may install BAT-80 AC. Place the BAT-80 AC according to the instructions of the Installation Manual.

  • Page 8: Risks

    This manual describes general warnings that must be observed. Read the manual carefully before using the product. BAT-80 AC contains high voltages that can cause serious injury or death. Wait at least 5 minutes after disconnecting the system from the power supply before opening the battery.
  • Page 9 Report any external cable or wire damage to XOLTA or your local XOLTA trained electrical installer. BAT-80 AC must be grounded to avoid risk of electrical shock. If you see any signs of the opposite, contact your XOLTA system sup- plier for further investigation.

  • Page 10: Other Precautions

    Dispose of the product in accordance with local regulations. 2.3 What to do in an emergency? BAT-80 AC is designed to meet strict safety standards. It monitors essential parameters of the bat- tery system and protects the battery from damage. The main battery safety measures are presen- ted in the table below.
  • Page 11 User manual | XOLTA BAT-80 AC Main safety measures in BAT-80 AC Lithium Iron Phosphate battery cells with excellent safety per- formance. State of the art battery management system (BMS) ensuring over- /under voltage and over/under temperature monitoring for each individual battery cell.
  • Page 12 Never use a XOLTA system that is or has been flooded. tem. The same applies if the Keep away from the battery rack and contact your XOLTA rack is flooded during system supplier.

  • Page 13: Certified Electrical Installers With Xolta Training

    For more information, refer to the transportation regulations under the UN3480 ship- ping and handling classification for lithium-ion batteries. You can return a XOLTA system at the end of its functional life to the original seller or to the dealer of your new residential battery.
  • Page 14 Key specifications or in the Product Datasheet. The XOLTA BESS was out of service for a continuous period of more than six months after the ini- tial installation due to the fault of the owner.

  • Page 15: Chapter 3: System Overview

    Outdoor operation capability: The mechanical casing of the system is designed to be effective up to enclosure rating IP45, related to dust and water jet ingress. Modularity: The system is configurable to specific needs. Several XOLTA battery racks can be con- nected and operated in parallel increasing power and energy capacity anytime required.

  • Page 16: Hardware Description

    Peripherals: Possibility of integrating external energy meters and other peripherals. 3.2 Hardware description This section describes the various hardware components of BAT-80 AC. The figure below shows the schematic drawing of the BESS. At the top, the ventilates the entire system by drawing air from the front and expelling it through the rear.
  • Page 17 User manual | XOLTA BAT-80 AC Figure 3-1 - Illustration of the hardware components Page 17 | Chapter 3: System overview...
  • Page 18 User manual | XOLTA BAT-80 AC Figure 3-2 - BPU front view. The site controller, installed in the BPU, connects to the Cloud via the Ethernet port. This port also enables communication between neighboring racks when they operate together. Using an isolated bus (iCAN), the site controller communicates with the BMS.

  • Page 19: System Safety

    3.3 System safety 3.3.1 Safety measures BAT-80 AC meets all requirements for the safe operation of lithium-ion batteries in industrial applications. A state-of-the-art protects the BESS by monitoring essential battery parameters such as cell voltage, current, and temperature to ensure safe operation. It also tracks key metrics like the State of Charge (SoC) and balances the battery cells to maximize energy utilization and per- formance.

  • Page 20: Internal Electrical Protection Schematics

    User manual | XOLTA BAT-80 AC For added safety, an external emergency stop button can be installed as an optional feature. When pressed, it disconnects the battery racks from the grid. An electrician should install the emergency stop button during the connection of the BESS to the grid.

  • Page 21: Versions Of Bat-80 Ac

    User manual | XOLTA BAT-80 AC Figure 3-3 - Electrical protection schematics 3.4 Versions of BAT-80 AC BAT-80 AC is available in four power configurations. The different versions are shown in the table. Page 21 | Chapter 3: System overview...

  • Page 22: Key Specifications

    BAT-80 AC/30 kW 30 kVA 3P+PE BAT-80 AC/50 kW 50 kVA 3P+N-PE BAT-80 AC/60 kW 60 kVA 3P-PE Table 3-5 - Versions of BAT-80 AC 3.5 Key specifications Technical prop- BAT-80AC/25 AND BAT-80AC/30 AND erties BAT-80AC/50 BAT-80AC/60 Power (charge/dis- 25 kVA or 50 kVA...
  • Page 23 User manual | XOLTA BAT-80 AC Technical prop- BAT-80AC/25 AND BAT-80AC/30 AND erties BAT-80AC/50 BAT-80AC/60 500ms *95 % of maximum power enabling ancillary service Power delivery (FFR FCR-D FCR-N Nominal energy 80 kWh Usable capacity 73 kWh Battery chemistry Li-ion LFP...
  • Page 24 User manual | XOLTA BAT-80 AC Technical prop- BAT-80AC/25 AND BAT-80AC/30 AND erties BAT-80AC/50 BAT-80AC/60 perature Note: Power derating may occur. Parallel coupling Ability to couple multiple racks in parallel Cabinet Coated, vandal resilient steel enclosure Dimensions D800 mm x W845 mm x H2210 mm...

  • Page 25: Chapter 4: System Operation And Functionality

    User manual | XOLTA BAT-80 AC Chapter 4: System operation and func- tionality 4.1 Multi-rack solution The BESS is a distributed system of independent AC-coupled battery racks capable of functioning as one unit. This system architecture offers superior redundancy and resiliency. In practice it...

  • Page 26: Operation Modes

    In this mode, the battery charges when solar energy pro- duction exceeds household demand, and discharges when demand is greater than solar pro- duction. By using this mode, BAT-80 AC owners can increase their use of renewable energy and reduce their energy bills.

  • Page 27: Grid Tariff Optimization

    User manual | XOLTA BAT-80 AC Figure 4-4 - Maximizing solar self-consumption 4.2.1.2 Grid tariff optimization Grid tariff optimization is based on the Time of Use pricing model and is only available in markets with dynamic pricing. This optimization uses an advanced algorithm that builds on the solar self- consumption mode, incorporating additional factors such as weather forecasts, historical energy consumption, and electricity prices.

  • Page 28: Direct Battery Control

    Schedule - the system follows a predefined schedule with one or multiple values. 4.2.2.2 Local Modbus control BAT-80 AC can be fully controlled and monitored through external equipment, such as a PLC or cus- tomer , using the standardized Modbus communication protocol.

  • Page 29: Full Load Backup

    4.2.3 Full load backup BAT-80 AC has full load backup capabilities with the addition of a backup power application. When a grid outage is detected, the BESS automatically enters black start mode and switches to grid- forming mode. The backup system continuously monitors the grid state and seamlessly transitions between on-grid and backup modes as needed.

  • Page 30: Frequency Support

    FCR-D . The BESS can respond fast to power requests implementing 95 % of the requested power within 500 ms. Note: For specific requests about frequency support services, contact XOLTA support at support@xolta.com. 4.2.4.2 Voltage support Grid voltage support is an operational mode intended to support stabilization of the local grid voltage.

  • Page 31: Load Following

    User manual | XOLTA BAT-80 AC Figure 4-6 - Example of grid voltage distribution with and without grid voltage support mode Figure 4-7 - Variations in grid voltage and the corresponding active power output of the BESS when operating in grid voltage support mode.

  • Page 32: Peak Shaving

    User manual | XOLTA BAT-80 AC itors the load profile and responds by delivering or absorbing power as needed to maintain a bal- ance between supply and demand. 4.2.4.4 Peak shaving In this mode, the BESS is designed to reduce peak energy demand and supply from the grid, help- ing to lower the overall electricity costs for the BESS owner.

  • Page 33: Site Controller States

    User manual | XOLTA BAT-80 AC Figure 4-9 - System state diagram 4.3.1 Site controller states 4.3.1.1 Sleep state In the sleep state, the system is idle. This means that it only monitors and transmits battery vitals and waits for a request to activate. In this state, the DC contactor of the battery is open. The...

  • Page 34: Error State

    User manual | XOLTA BAT-80 AC If the system is not in any of the grid support modes and is inactive (inverter P,Q = 0) for a period of more than 20 seconds, it will automatically transition to the sleep state.

  • Page 35: Monitoring The Bess

    AC and DC contactors of the inverter open. BESS DC contactors open. 4.4 Monitoring the BESS With the XOLTA web app, you can monitor the BESS , for example, view real-time information about your energy sources - how much energy comes from the solar panels, grid, and batteries.

  • Page 36: Chapter 5: Api Access

    Chapter 5: API access XOLTA can enable operators to receive BESS device specific telemetry data and control a device dir- ectly by using an API. The API is a set of REST endpoints that provide user access to device data via a Cloud service.
  • Page 37 User manual | XOLTA BAT-80 AC Name Unit Description Active power consumed by load and auxiliaries on the site/system, for example, the cooling and BPU. Calculated con- sumption Note: Metered values are only available if the meter is operated by XOLTA.

  • Page 38: Chapter 6: Receiving And Installing Bat-80 Ac

    Make sure the underlying foundation and ground can support the weight of BAT-80 AC. All BAT-80 AC racks should be level (±0,5°) and secured to the plinth and the underlying found- ation. BAT-80 AC should always be placed on the north side to minimize direct sunlight, which may affect the system’s performance.

  • Page 39: Clearance Requirements

    6.3 Clearance requirements You must adhere to the minimum clearance distances on all sides of the BAT-80 AC racks when planning for installation. These clearance distances ensure optimal operation of the thermal man- agement system and provide enough space for a XOLTA trained electrical installer to service the BESS.

  • Page 40: Install Bat-80 Ac

    User manual | XOLTA BAT-80 AC Figure 6-10 - Minimum clearance space between battery racks. 6.4 Install BAT-80 AC This section provides a simplified guide to installing BAT-80 AC. For detailed information, see the BAT-80 AC Installation Manual. Steps: 1. Mount the base onto the plinth, with the base front taken off. For information about alternative cable routing, see the installation manual.
  • Page 41 User manual | XOLTA BAT-80 AC 2. Place the battery rack onto the base using a forklift or crane. Page 41 | Chapter 6: Receiving and installing BAT-80 AC...
  • Page 42 User manual | XOLTA BAT-80 AC 3. Fasten the four M10x20 bolts to secure the battery rack to the base. Page 42 | Chapter 6: Receiving and installing BAT-80 AC...
  • Page 43 User manual | XOLTA BAT-80 AC 4. Route the main power cable, control power cable, and data cable into the BAT-80AC rack. 5. Attach the base front. Page 43 | Chapter 6: Receiving and installing BAT-80 AC...
  • Page 44 User manual | XOLTA BAT-80 AC 6. Connect BAT-80 AC to the grid and internet. Page 44 | Chapter 6: Receiving and installing BAT-80 AC...
  • Page 45 User manual | XOLTA BAT-80 AC Page 45 | Chapter 6: Receiving and installing BAT-80 AC...

  • Page 46: System Operation

    User manual | XOLTA BAT-80 AC 6.5 System operation BAT-80 AC is intended to be operated from the XOLTA Cloud or via an . For information about the available operation modes and operation states, see Operation modes on page 26. Short for "Application Programming Interface". A set of commands and protocols that enables dif- ferent software applications to interact and exchange data by defining how requests and responses should be structured.

  • Page 47: Chapter 7: Service And Maintenance

    Even a de-energized BAT-80 AC rack can cause injury or even death. 7.1.1 Maintenance intervals In addition to BAT-80 AC's own continuous monitoring of vital parameters, you should schedule an annual service check. Only a XOLTA trained electrical installer with adequate knowledge regarding electricity and batteries should perform this check.

  • Page 48: Replacing Maintenance Parts

    7.2.3 Replace the main air filters BAT-80 AC contains four main filters: two for the front and two for the rear. These filters are crucial for maintaining the system's optimal performance and extending its lifespan. If the filters become excessively dirty and cannot be cleaned, or if they are damaged, replace them.
  • Page 49 User manual | XOLTA BAT-80 AC 1. Remove the front bottom filter and bracket: 1. Unscrew the three M4x10 screws. 2. Pull the filter with bracket out and down. 3. Detach the filter from the bracket by unscrewing the 10 M5 nuts.
  • Page 50 User manual | XOLTA BAT-80 AC 2. Remove the front top filter by unscrewing the 10 M5 nuts Page 50 | Chapter 7: Service and maintenance...
  • Page 51 User manual | XOLTA BAT-80 AC 3. Remove the rear bottom filter and bracket: 1. Unscrew the five M5x6 screws. 2. Pull the filter with bracket out and down. Page 51 | Chapter 7: Service and maintenance...

  • Page 52: Fault Finding And Troubleshooting

    4. Remove the rear top filter by unscrewing the 10 M5 nuts inside of the rear top filter. 7.3 Fault finding and troubleshooting Below is a list of common faults and possible solutions. If in doubt, contact XOLTA support. Before contacting XOLTA support, please verify the following:...
  • Page 53 User manual | XOLTA BAT-80 AC 3-phase power is available. Control power (230V) is available. RJ45 connection cable has internet access. All fuses and breakers are closed. Your device ID. Common fault Indicator Possible solution reason The control power Verify the control power and eth- No access to BAT-80 AC (230V) is missing.

  • Page 54: List Of Spare Parts

    Table 7-10 - Fault finding and troubleshooting Note: If the table above did not help you solve the problem, please contact XOLTA sup- port at support@xolta.com or +45 35 153 123. 7.4 List of spare parts...
  • Page 55 ABB inverter – 30 kW 001170 Battery pack 105 Ah 101210 101211 Table 7-11 - Spare parts for BAT-80 AC Note: If you have questions or need additional information about spare parts, contact XOLTA support. Battery protection unit Page 55 | Chapter 7: Service and maintenance...

  • Page 56: Chapter 8: Decommissioning

    8.3 Decommission the electronic parts BAT-80 AC has an inverter tray at the bottom of the rack. Remove the inverter tray and rack cabling from the rack and handle them as electronic waste. The heating elements are located in the top part of the cabinet. Remove them after handling everything else.

  • Page 57: Decommission The Ac Unit

    Lift the AC unit out from the top by removing all the screws on the top of BAT-80 AC. After remov- ing the top, unbolt the AC unit from each side at the base. Handle the AC unit according to local regulations regarding the refrigerant...

  • Page 58: Chapter 9: Long Term Storage

    User manual | XOLTA BAT-80 AC Chapter 9: Long term storage If you need to store a BAT-80 AC rack disconnected from the grid for more than 30 days, you must meet the following requirements to maintain the product warranty.
  • Page 59 Only a XOLTA trained certified electrical installer may charge a disconnected BAT-80 AC rack. If the battery voltage is outside these ranges, charge BAT-80 AC to bring the system to the recommended voltage or SoC. If the system is connected to the grid, perform a charge cycle as recommended, ensuring the SoC ends within the range of 30% to 40%.

  • Page 60: Chapter 10: Terminology

    User manual | XOLTA BAT-80 AC Chapter 10: Terminology This section describes the terms and abbreviations used in this manual. Alternating current AC unit An air-cooling unit in the battery energy storage system used to absorb and transfer heat inside the battery unit.
  • Page 61 User manual | XOLTA BAT-80 AC Controller area network Serial communication protocol developed by Bosch. Direct current de-energize To disconnect or isolate the battery energy storage system from any power source to pre- vent the flow of current. A de-energized battery might still be partially or fully charged.
  • Page 62 Main Control Unit of n-BMS Meter A digital device that has been physically installed and is awaiting connection to the XOLTA server, measuring and recording real-time electricity consumption, generation, and grid interaction for efficient energy management in a battery storage system. Synonym: smart meter.
  • Page 63 User manual | XOLTA BAT-80 AC Negative temperature coefficient thermistor Short for "over voltage category". The level of transient overvoltage the battery energy storage system can withstand based on its location in the electrical installation. It ranges from OVC I (low exposure, electronic devices) to OVC IV (high exposure, utility con- nections).
  • Page 64 User manual | XOLTA BAT-80 AC residual current circuit breaker A circuit protection device that detects earth faults or residual currents. residual current device A circuit protection device that detects leakage currents and cuts off the power to prevent electric shocks.
  • Page 65 User manual | XOLTA BAT-80 AC (when demand is lower). This pricing structure encourages consumers to shift their energy use to off-peak periods to lower costs and reduce strain on the electrical grid. Thermal management system Time of Use Page 65 | Chapter 10: Terminology...
  • Page 66 About XOLTA XOLTA is a Danish company specializing in the devel- opment and production of advanced battery sys- tems for energy storage. The solutions are designed for both residential households and businesses, enabling efficient solar energy storage and energy consumption optimization. XOLTA's products pro- mote energy efficiency, reduce dependency on the power grid, and support a sustainable future.

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