Related Manuals for XOLTA BAT-80
Summary of Contents for XOLTA BAT-80
- Page 1 BAT-80 USER MANUAL XOLTA OUTDOOR BATTERY ENERGY STORAGE SYSTEM Advanced multipurpose energy storage system © 2022 by XOLTA...
-
Page 2: Table Of Contents
2.5 Disclaimer ..................................9 2.5.1 Cyber security ................................9 2.6 Copyright ...................................9 Voiding of warranty .................................10 2.8 Abbreviations ..................................10 3. XOLTA Battery Energy Storage System Overview Introduction ..................................11 Hardware description ..............................12 System safety ..................................13 3.3.1 Safety measures ..............................13 3.3.2 Internal electrical scheme of the XOLTA Outdoor BESS ..................14 3.4 Versions of BAT-80 battery system ..........................15 3.5... - Page 3 TABLE OF CONTENTS (CONTINUED) 5.3 Site controller state machine ............................30 5.3.1 Site Controller states ............................30 5.3.2 Transitional Sequences ............................31 XOLTA Outdoor BESS monitoring ...........................32 5.5 User and device registration ............................32 5.5.1 Get XOLTA App on Desktop ..........................33 5.5.2 Get XOLTA App on Android device ........................33 5.5.3 Get XOLTA App on iOS device ..........................33 5.5.4 Main view – Home ...............................34 5.5.5 Data view ................................35 5.5.6 Economics view ..............................36 5.5.7 Policies view .................................36 5.5.8 User view ................................37 5.6 Removing the application from a device ........................37 5.6.1 Android and iOS ..............................37 5.7...
- Page 4 TABLES AND FIGURES Table 2.1 List of main safety measures in XOLTA Outdoor BESS ....................7 Table 2.2 List of abbreviations used in this XOLTA User Manual ....................10 Table 3.1 Classification of the different XOLTA BAT-80 battery systems ..................15 Table 3.2 Key specifications for XOLTA BAT-80/30 and BAT-80/60 ....................15 Table 3.3 Key specifications for XOLTA BAT-80/25 and BAT-80/50 ....................16 Table 4.1 Connections ..................................19 Table 4.2 Terminal functional layout ...............................21 Table 6.1 List of telemetry signals ..............................38...
- Page 5 © 2023 by XOLTA...
-
Page 6: Document Purpose And Structure
1.1 Document purpose and structure The purpose of this manual is to provide the user of the XOLTA Outdoor Battery Energy Storage System (BESS) with an overview of system installation, functionality and operation. The document is organized as follows: Chapter 2 covers important safety information, legal terms and provides the list of actions to be taken in emergency situations. Chapter 3 gives a brief introduction to the XOLTA Outdoor BESS and describes its main features, types and key specification parameters. Safety measures and protection schemes used in the XOLTA Outdoor BESS are also described. Chapter 4 deals with system installation, maintenance and location requirements. Chapter 5 describes currently available XOLTA Outdoor BESS operating modes (applications) and operating states. Chapter 6 provides a list of telemetry signals accessible via the Web API and Modbus TCP. -
Page 7: Actions In Case Of Emergency Situations
RISK OF ELECTRICAL SHOCK: There are high voltages present on AC and DC cables. There is a risk of death and serious injury due to electric shock. Report any external cable/wire damage to XOLTA or your local XOLTA system installer. • Do not touch uninsulated wires. • 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 XOLTA certified technicians. • Never immerse the XOLTA Outdoor BESS in water or other fluids. RISK OF DAMAGE: • Do not expose the battery system to temperatures below -25°C or in excess of 50°C. Such exposure will result in irreversible degradation of the battery cells. • Do not block or in any way obstruct the air intakes or outlets as this will lead to improper product operation or problems with thermal management. See Figure 4.1. • Do not place any objects on top of the unit or within the required clearance space around the unit. - Page 8 – I n case of electrolyte ingestion - force vomiting and contact medical help. • Do not enter the room, if installed inside. • Ventilate the room if possible. • Contact your XOLTA system supplier. FIRE Fire may occur due to mechanical damage or external sources of heat and fire. Hazardous fumes such as carbon dioxide, carbon monoxide and hydrocarbons are emitted during battery fires. ACTION • Disconnect the power from the battery system (if possible, without getting too close to the battery and without inhaling fumes). • Never try to extinguish a battery fire yourself. If battery cells catch fire, then only qualified firefighting personnel with appropriate protective equipment should attempt to extinguish the fire. Keep away from any battery fire and contact emergency firefighters. • If components other than battery cells catch fire, then ABC or carbon dioxide extinguishers can be used to extinguish the fire. • Keep away from the battery and contact emergency firefighters. IMMERSION IN WATER Immersing the XOLTA Outdoor BESS in water risks causing a short-circuit and damage to the battery system. ACTION • Do not try to access the XOLTA Outdoor BESS. • Disconnect the power (if possible without getting too close to the battery). • Never use a flooded battery system again. • Keep away from the battery and contact your XOLTA system supplier. © 2023 by XOLTA...
-
Page 9: Xolta Certified Installers
Any sign of mechanical damage or abnormal behavior of the battery system or its peripheral components should be treated with extreme caution. ACTION • Never use a damaged battery system again. • Disconnect the power. • Keep away from the battery and contact your XOLTA system supplier. 2.3 XOLTA certified installers XOLTA provides appropriate training to installation technicians for XOLTA systems. The XOLTA Outdoor BESS must only be installed and commissioned by XOLTA certified installers. Contact XOLTA for a list. 2.4 Safe disposal of Lithium-ion batteries Uninstalling a XOLTA battery should only be undertaken by an authorized electrician. Lithium-ion batteries must be treated as hazardous waste and not be disposed of with regular waste. Special regulations apply to the transport of batteries, and these must always be observed. A XOLTA battery that has reached the end of its functional life can be returned to the seller that originally sold the battery or to the dealer of a new industrial battery. -
Page 10: Voiding Of Warranty
• Any loss, theft or damage caused by water, fire or extreme weather conditions; any wear and tear or cosmetic damage. 2.8 Abbreviations Table 2.2: Alternating Current List of abbreviations BESS Battery Energy Storage System used in this XOLTA Battery Management System User Manual Beginning of Life Battery Protection Unit - a unit containing switches and fuses for battery protection Controller Area Network - Serial communication protocol developed by Bosch Cell Monitoring Unit of nBMS Direct Current Depth of Discharge... -
Page 11: Xolta Battery Energy Storage System Overview
Battery Management System from Lithium Balance A/S Negative Temperature Coefficient thermistor Power Conditioning System Power on Reset Photovoltaic Residual Current Device Site Controller State-of-Charge Total Cost of Ownership Transmission Control Protocol Thermal Management System 3 XOLTA BATTERY ENERGY STORAGE SYSTEM OVERVIEW: 3.1 Introduction The XOLTA Outdoor BESS is a modular, cloud-connected multipurpose stationary energy storage system. The BESS is designed for a wide range of ambient temperature conditions which makes it suitable for outdoor installation without any additional enclosure. The system is designed for various operation modes (appli- cations) which will be further described in Chapter 5. The main features of the XOLTA Outdoor BESS are: • LIFT & DROP: Simple installation and commissioning. The system requires only grid connection, internet and electricity meter connections. • ALL IN ONE: All components of the system are integrated into a single cabinet. This includes the battery cells, the power conditioning system (PCS), the thermal management system (TMS), the battery manage- ment system (BMS), the battery protection unit (BPU), the multi rack battery control system and the energy management system. -
Page 12: Hardware Description
• SITE CONTROLLER: This works as a multi battery rack control system and an energy management system (EMS) which manages the entire XOLTA BESS. It provides multi battery rack management, charge/discharge power management, monitoring to assure safe system operation, communication with all system peripherals (e.g. the battery converter), data acquisition, communication with the XOLTA Cloud, system diagnostics and error handling. • THERMAL MANAGEMENT SYSTEM: Simple and efficient parallel air thermal management system designed to keep all critical components within their safe operating temperature range in various climate regions. • PERIPHERALS: Possibility of integrating external energy meters and other peripherals. 3.2 Hardware description In this section, different hardware components of the XOLTA BESS are described. Figure 3.1 presents the schematic drawing of the XOLTA Outdoor BESS. Each rack (battery cabinet) of the XOLTA Outdoor BESS consists of twenty serially connected battery packs as seen in Figure 3.1. All battery cells are protected by Lithium Balance’s n-BMS. The XOLTA Outdoor BESS is equipped with an inverter and thermal management system (TMS). Figure 3.1: Illustration of the XOLTA Outdoor BESS hardware components © 2023 by XOLTA... -
Page 13: System Safety
The Ethernet port also ensures communication between neighboring BAT-80 racks when they are operating in unison. The site controller communicates with Lithium Balance’s n-BMS via the iCAN bus. The site controller also governs activation of the thermal management system, sensing cell, outdoor air temperature and humidity. Communication with external energy meters can be realized via Modbus RTU or Modbus TCP communications protocols: - If a Modbus RTU meter is used, then it should be connected to the port indicated in Figure 3.2 (otherwise it should be terminated by an external jumper). • If a Modbus TCP meter is used, then it should be connected to the external switch (refer to the Installation procedure section). The sCAN port is only for internal use during BESS maintenance (Figure 3.2). The iCAN port is only used for non-standard installations and it should normally be terminated by an external jumper. Both Modbus RTU and iCAN buses may be terminated by addition of external jumpers as indicated in Figure 3.2 (depending on the specific installation requirements). The SPI port is used for communication between the n-BMS Main Control Unit (MCU) and the n-BMS Cell Monitoring Units (CMUs) that are in battery packs. The BPU is powered by single phase 230VAC+N+PE. The LED diode presented in Figure 3.2 is a BPU power indicator. 3.3 System safety 3.3.1 Safety measures The XOLTA Outdoor BESS is protected by Lithium Balance’s state of the art n-BMS. The system monitors essential parameters of the battery system (cell voltage, current, temperature) to ensure safe operation. The n-BMS also monitors the battery main parameters, e.g. State of Charge (SoC), and undertakes battery cell balancing to ensure maximal energy utilization and performance. The XOLTA Outdoor BESS is equipped with a battery protection unit (BPU) which protects the battery and the inverter from conditions that can be detrimental to the BESS. It includes redundant contactors controlled by the n-BMS and redundant fast battery fuses. The state of the contactors is monitored by the n-BMS. To assure system longevity and safe operation (maintaining correct operating temperatures), each of the XOLTA Outdoor BESS battery packs is equipped with four temperature sensors. These give a total © 2023 by XOLTA... -
Page 14: Internal Electrical Scheme Of The Xolta Outdoor Bess
Finally, e very X OLTA O utdoor B ESS c an b e e quipped w ith a n e xternal e mergency s top b utton w hich d isconnects the battery racks from the grid. The emergency stop button should be installed by an electrician when connecting the BESS to the grid. 3.3.2 Internal electrical protection schematics of the XOLTA Outdoor BESS Figure 3.3 illustrates the protection scheme used inside the XOLTA Outdoor BESS. The protection schematics include the following main components: • one fast DC fuse located in each battery pack... -
Page 15: Versions Of Bat-80 Battery System
3.4 Versions of BAT-80 battery system The XOLTA BAT-80 battery system is available in four different versions. Depending on the type of the PCS used and power rating, the XOLTA BAT-80 systems can be classified as shown in Table 3.1 below. Table 3.1: VERSION MAXIMUM POWER RATING ELECTRICAL CONNECTION Classification of BAT-80/25 25kVA 3P+N+PE the different XOLTA BAT-80 battery BAT-80/30 30kVA 3P+PE systems BAT-80/50 50kVA 3P+N+PE BAT-80/60 60kVA 3P+PE 3.5 Key specifications Key specification parameters of the XOLTA Outdoor BESS BAT-80/30 and BAT-80/60 are provided in Table 3.2. - Page 16 Table 3.3: TECHNICAL PROPERTIES Key specifications Power (charge/discharge) 25 kVA or 50 kVA for XOLTA BAT-80/25 Nominal energy 80 kWh and BAT-80/50 Battery chemistry Li-ion LFP Nominal battery voltage 770V DC Battery voltage range 720-840 VDC Grid connection voltage* 3 x 400VAC Battery system efficiency** 96,6% Ambient operating temperature -25°C to 35°C, Forced air cooling via heat exchanger...
-
Page 17: Receiving And Installing The System
• All XOLTA Outdoor BESS racks should be placed vertically and safely secured to the rack base and the underlying foundation. WARNING: The XOLTA Outdoor BESS must not be installed at the following locations: • Areas prone to earthquakes • Altitudes above 2000 meters above sea level; up to 4000 meters is permissible subject to system derating • Areas prone to flooding, open flames, explosion and extreme changes of ambient temperature... - Page 18 Figure 4.1: Nothing above Minimum clearance Only free space space on all sides of a XOLTA BAT-80 Min. 150 mm • The battery cabinets must be permanently fixed to the underlying foundation. Moving the assembled battery racks is strictly prohibited as this can damage the rack structure or the battery packs. Figure 4.2: Allowed cable Illustration of pre- routing space mounted base for XOLTA BAT-80 Outdoor BESS • All XOLTA Outdoor BESS racks must be placed vertically and safely secured to the rack base and the underlying foundation.
-
Page 19: General Electrical Requirements
3 phase 400 VAC + N + PE per rack Terminal size rack SAG 35mm Inverter mains supply Multi strand CU-cable required with min. bending radius r50mm BAT-80 1 x 230 VAC + N + PE, 10A per rack BPU supply Terminal size SAG 2,5mm Communication to central switch Ethernet CAT-6 cable per rack Earthing Terminal size rack SAG 35mm Ethernet communication External 1 port per battery rack between batteries, power meters communication switch 1 port per power meter and other system peripherals Power meter power supply 3 x 400 VAC + N + PE per meter Current transformers (X)A/5A TCP/IP Power meter Ethernet connection to Ethernet CAT-6 cable per site public internet © 2023 by XOLTA... -
Page 20: Grid Feeding Monitoring Relay
Meter Supply Meter Eth. Cable Main Electrical Power Utility Panel Grid Meter CT´s Grid Measurement Point 4.3.5 Grid feeding monitoring relay The BESS is equipped with a grid-feeding monitoring relay between the battery system and the public grid. The relay collects all relevant data regarding abnormal status of the public grid and automatically disconnects or reconnects the battery inverter. The grid-feeding monitoring relay must be set up according to specific local grid requirements. Please contact XOLTA support prior to delivery for setup. If the specific grid parameter measured by the grid-feeding monitoring relay is non-compliant, a 24V signal is no longer provided to the inverter, which is then disabled. 4.3.6 Connnecting the battery system The main power cables enter through the base of the rack and are fed through the 50mm hole in the right-hand front corner leading up to the power connection terminals as illustrated in Figure 4.5. If more space is required, the hole can be enlarged to accommodate the cable size. NOTE! the cables used must allow a bending radius according to Table 4.1. © 2023 by XOLTA... - Page 21 Max 35mm Max 35mm BAT-80 50/60 *) The terminal block accepts up tp 50mm alu cables, but that will be very difficult to route under/inside the rack. Figure 4.6: Power terminals for BAT-80 3 2 1 © 2023 by XOLTA...
- Page 22 D) Installation of the PV meter (if required for the specific application); All installation steps are visualized in Figure 4.7 to Figure 4.10. Figure 4.7: Diagram of the fuse and switch cabinet XOLTA BESS ELECTRICAL PANEL installation of XOLTA Rack Terminal 4, PE BAT-80/30 XOLTA 3 x CTs Inverter 3 Phase Circuit Battery Inverter Meter 3 x V+N Breaker with fuse...
- Page 23 Figure 4.9: Diagram of the fuse and switch cabinet XOLTA BESS ELECTRICAL PANEL installation of XOLTA Rack Terminal 4, PE BAT-80/25 XOLTA 3 x CTs Inverter 3 Phase Circuit Battery Inverter XOLTA Rack Terminal 8, N Breaker with fuse Meter...
-
Page 24: System Operation
Maintenance work within the high voltage components must only be undertaken by a XOLTA trained technician. Failure to comply with this can result in injury or even fatal accidents. Any unauthorized work on the energy storage unit will void the product and performance warranty. -
Page 25: Replacing The Main Air Filter
Replacement filters can be ordered via support@xolta.com Figure 4.11 (left) Cabinet top view Figure 4.12 (right): Remove protective cover 4.6 Decommissioning The entire BAT-80 Outdoor BESS system is modular build which makes for simple disassembly of any part. 4.6.1 Preparing the BAT-80 for decommissioning • Discharge BAT-80 to SoC = 0% • Make sure that the BAT-80 Outdoor BESS is electrically fully disconnected at the main switch board • Disconnect all the black and orange Amphenol DC connectors on the front of the battery packs and the inverters • Disconnect BMS communication cables from battery packs • Disconnect AC cables inside battery rack: 3P+E main grid connection and 1P+N+E (aux. connection) • Disconnect all cables from BPU 4.6.2 Decommissioning battery packs • Remove battery packs by unscrewing the 3 screws on the front of each pack. The module slides out... -
Page 26: Xolta Battery System Functionality
5 XOLTA BATTERY SYSTEM FUNCTIONALITY: 5.1 Multi-rack solution The XOLTA Outdoor BESS is modular. It can be scaled up to 32 racks of outdoor AC-coupled BESS battery racks to function as one unit. XOLTA BESS offers redundancy and resiliency, which means that when one or more racks are out of order, the remaining racks can bear the potential workload (limited to the maximum power of all available racks) and continue operating without interruptions, as illustrated in Figure 5.1. Figure 5.1: Example of how multi-rack solution functions. XOLTA BESS BAT-80 P = X P = X XOLTA BESS BAT-80 P = X P = X Example of how multi-rack solution functions. a) The total delivered power (P = X) is distributed to each individual rack according to its capability. b) In case of failure in one or more racks, the rest of the working units will continue and redistribute the power. Total delivered power P is given by P1 + P2 + ... + Pn. -
Page 27: Bess Operation Modes
5.2.1.1 Maximizing solar self-consumption Maximizing solar self-consumption mode is designed to maximize the battery owner’s utilization of renewable energy, such as solar energy. As the generation of power from solar energy often occurs at times of the day when residential households have low consumption needs, the XOLTA Outdoor BESS stores the excess solar energy during the day and releases it when user consumption exceeds the production from renewable energy, as shown in Figure 5.3. In this maximizing solar self-consumption mode, the battery will charge when there is excess solar energy (solar production is higher than the demand) and discharge when the demand is higher than the solar production. When operating in this mode, users can expect to see their renewable self- consumption rate increase and energy bill decrease. Figure 5.3: Time Shift Illustration of Consumption maximizing self- consumption mode Solar production functionality in the most optimal situation Morning Noon Evening Energy shifted by battery © 2023 by XOLTA... - Page 28 Figure 5.4. presents grid tariff optimization example. High-price and low-price regions are indicated in the top figure, whereas the planned charge according to weather and historical consumption is shown in the bottom figure. Figure 5.4: Possible economic saving 12% Grid tariff optimization example dkk/kwh Price Consumption 00:00 04:00 08:00 12:00 16:00 20:00 DETAILS Reserved SOC POWER High price consumption 00:00 04:00 08:00 12:00 16:00 20:00 00:00 © 2023 by XOLTA...
-
Page 29: External Control
5.2.2 External control The XOLTA Outdoor BESS is able to react to power setpoints received from external systems. An interface (web API) is provided which allows the user to decide the active power (P) and reactive power (Q) in all four quadrants. This mode is ideal for users who would like to develop their own control algorithm. It is also used for an installation functional check when a XOLTA technician is doing on-site commissioning. There are two different formats of external control: • Single setpoint: System will work upon the single setpoint. The input can only be one value at a time. • Schedule: System will work on a pre-defined time schedule. It can be one value or a list of values. The limitation of P-setpoints is constrained by the maximum apparent input/output power of the inverter and the local grid capacity. Q-setpoints are limited by the power factor and the P measurement. Positive and negative P-setpoints stand for battery charging and discharging. Positive and negative Q-setpoints stand for BESS-producing inductive and capacitive reactive power. A detailed XOLTA cloud API instruction can be provided on request. 5.2.3 Grid support Grid support includes various grid services that comply with the local grid code and capabilities of the local electricity market activities, such as frequency support and voltage support. For specific requests please contact XOLTA support at support@xolta.com. 5.2.3.1 Load following Load following is an operational mode used to support one or more user-specified loads. -
Page 30: Site Controller State Machine
Inverter active power Time [day] 5.2.3.3 Grid frequency support For specific requests about frequency support services please contact XOLTA support at support@xolta.com. 5.3 Site controller state machine The XOLTA Energy Storage System (ESS) Site Controller (SC) is a finite-state machine with three distinct states; • SLEEP (idle) • RUN (active) • ERROR Transitions from one state to the other occur through intermediate sequential procedures. The SC state diagram can be found in Figure 5.8. 5.3.1 Site controller states 5.3.1.1 Sleep state The system is idling; it is only monitoring and transmitting battery vitals and waiting for a request to activate. In this state, the DC contactor of the battery is open. The inverter is inactive (IGBTs off) with both the AC and DC contactors open. For a period of system inactivity of more than 20 minutes, the BMS is disabled and turned off in order to further minimize energy loss. Upon a state change request, the system is able to be active and ready to receive and inject power within a few seconds. The detailed state diagram of the XOLTA Outdoor BESS is presented in Figure 5.7. © 2023 by XOLTA... -
Page 31: Transitional Sequences
5.3.1.3 Error state If a fault is detected, the system will immediately switch to the error state. A series of actions will then occur: • Immediate shutdown of inverter, DC and AC contactors open • BMS is disabled, DC relay open • Report error to the XOLTA cloud If the fault can be resolved internally, then the system will return to the state it was in when the error was diagnosed and carry on the task it was previously executing. 5.3.2 Transitional Sequences 5.3.2.1 Initialization Accessible from POR (Power-on Reset) or from the error state in the event of a fault reset as shown in Figure 5.7. During this sequence the following occurs: • Check of all communication lines of ESS, internal (serial busses) and external (cloud/energy meters) • Status check of all devices • In case of error, reset the device showing the error • Activate BMS Once the sequence is complete, the system automatically transitions to the Sleep state. 5.3.2.2 Startup Accessible from sleep state and transitions the system to the run state. During this sequence, the following occurs: • Inverter is activated • BESS DC contactors close • AC and DC contactors of inverter close © 2023 by XOLTA... -
Page 32: Xolta Outdoor Bess Monitoring
5.3.2.3 Shutdown Accessible from the run state and transitions the system to the sleep state. During this sequence the following occurs: • Inverter is de-activated • AC and DC contactors of inverter opened • BESS DC contactors open 5.4 XOLTA Outdoor BESS monitoring The BESS monitoring application is a WEB application providing a user access to the BESS solution via the Cloud services. The Cloud services store telemetry data and provide a real-time status of the BESS solution. From the application users can access: 1. Overview of your renewable energy production and electricity usage 2. Operation status of the battery 3. Dashboard with near real-time status and renewable self-consumption rates 4. Historical trending of telemetry 5. Historical economics data The XOLTA App can be accessed at https://app.xolta.com, starting with a login page. For the best experience we recommend using the Google Chrome browser. 5.5 User and device registration To get access to the system, a user/owner needs to register and associate a device with a new or existing account. This can be done by simply scanning the QR code in the test report or on the battery. After scanning the QR code and opening the link, a popup login/registration page is shown as seen in Figure 5.8. -
Page 33: Get Xolta App On Desktop
Pressing the confirm button will take the user to the then press confirm. XOLTA App homepage, where the battery can be moni- tored. This includes an overview of the renewable energy production and electricity consumption. The XOLTA app can be viewed as a web application on your Android, iOS device or Desktop. 5.5.1 Get XOLTA App on Desktop Enter https://app.xolta.com in the web browser (we recommend using Google Chrome) to access the XOLTA App desktop homepage as shown in Figure 5.13. 5.5.2 Get XOLTA App on Android device When accessing the web application using the Google Chrome browser on an Android device. Add a shortcut to the application via the settings button in the address bar. Tap on the menu item ‘Add to home screen’ in the address bar. This will create a shortcut to the application to the home screen with a white circled icon. (see left margin) 5.5.3 Get XOLTA App on iOS device When using an iOS device do the following: • Tap the Share button in Safari while on the web application • Tap the icon labeled Add to Home Screen • Tap Add in the upper-right corner... -
Page 34: Main View - Home
5.5.4 Get XOLTA App on iOS device The WEB application provides several tabs [Home, Data, Economics, Policies, User, etc.] depending on the features of the battery system as shown in Figure 5.12. The application adapts to whether a mobile device or a desktop browser is being used to access it. Figure 5.12: XOLTA App Home screen desktop Figure 5.13: XOLTA App Home screen mobile device The main purpose of the Home view is to provide an overview of the battery performance in relation to the energy production and consumption at the installation site. Consumption is calculated based on three power measurements: Battery inverter, PV installation and the Grid connection point, where Battery presents the battery SoC and actual charge/discharge power. PV indicates the solar power production measured by the installed smart meter. The Grid power measurement provides import/export and the actual power value. All power readings are average values updated per minute. © 2023 by XOLTA... -
Page 35: Data View
5.5.4.1 24h self-power rate The pie chart in the Home-view indicates the source of energy consumed during the last 24 hours. In the center of the diagram, the self-power rate is given as a percentage which indicates how much energy was provided by battery or solar panels during the last 24 hours. The remaining energy was imported from the public grid 5.5.4.2 Device State The battery system connection state and operation mode indicate the operation of the battery rack. An offline symbol (see left margin) is displayed when there is no internet connection available. The system will reconnect once connection is restored. If an error occurs in the battery rack, the system displays an error symbol (see left margin). The operation mode indicates the algorithm that the controller is currently using. See section 5.3 for more details on the state machine. The Control status indicates which control strategy is currently in use via the XOLTA Cloud. 5.5.5 Get XOLTA App on Desktop The Data tab provides historical performance data captured by the battery system. Figure 5.14: Dataview from XOLTA app The graphs provide resolutions for Day, Week and Month for the given 5 categories. • State of charge (%) • Battery inverter (kW) • Grid connection point (kW) • PV, solar production (kW) •... -
Page 36: Economics View
Estimated absolute values for monetary and CO savings are shown at the top of the screen. The CO emissions are based on a value of 150g/kWh. 5.5.7 Policies view The policies are high level control strategies for the battery system. These use historical data and forecasts as input into calculating control actions. Figure 5.16: Policies view XOLTA app On/Off The policy can be activated/deactivated via the control (see left margin). Context Help The help button shows help for a specific policy (see left margin). Configuration Parameters for the selected policy can be modified with the editor button (see left margin). The editor enables modification of a set of basic and advanced parameters. © 2023 by XOLTA... -
Page 37: User View
5.5.8 Policies view User access control for the BESS system is controlled in this view. Any user that has access to the BESS asset can delegate access to other users. Figure 5.17: Users view XOLTA app Add user To add a user, press (plus - see left margin). A new user can only be added after an account for the user has been created on the XOLTA software platform. New users can create an account by going to https://app.xolta.com and following the signup link. The new account email can then be used when adding the user to the battery system. 5.6 Removing the application from a device 5.6.1 Android and iOS Uninstalling the XOLTA App from an Android or iOS device uses the same procedure as for uninstalling any other app from the devices. 5.7 Tutorial A tutorial is available for new users by pressing the icon (plus - see left margin) in the top right corner and then clicking on “Tour”. This will start the web tutorial that will walk the user through the features of the XOLTA application and how to use them. If you have any questions regarding the XOLTA App or difficulties with device registration, please contact your XOLTA reseller. © 2023 by XOLTA... -
Page 38: Api Access
Active power produced by the PV system and measured by a Meter Pv* power meter * Metered values are only available if the meter is operated by XOLTA A reference manual for access and use of the cloud API can be provided on request by writing to support@xolta.com. - Page 39 © 2023 by XOLTA...
- Page 40 XOLTA A/S Mileparken 1 www.xolta.com 2740 Skovlunde, Denmark...