TYRANN 8kW Off-Grid Power System with 15/20kWh LFP Battery and 8.8kW Generator – No Solar Required This off-grid energy system is designed to provide reliable power for business operations in remote or off-grid locations. It’s also well suited for off-grid homes, cabins, or workshops where solar isn’t currently practical or where it may be added in future. The system includes the TYRANN 8kW inverter charger, paired with 15 to 20kWh of lithium (LiFePO₄) battery storage and a high-capacity 8.8kW generator. Together, they deliver 230V AC power for tools, equipment, appliances, lighting, and backup needs. As a flexible and scalable solution, it’s ideal for setups where generator charging is preferred, and solar or wind can be added later via an external charge controller. What’s Included 3 or 4 × Photonic Universe LFP48-100 48V 5.12kWh LiFePO₄ Batteries 1 × TYRANN 8kW 48V Off-Grid Inverter Charger 1 × Excel Power XL10000i 8.8kW Petrol Inverter Generator Cables, KETO disconnector, battery fuses, isolators, and basic install kit Key Benefits Reliable off-grid power for business or residential use Generator can run at convenient times (e.g. outside operating hours) Quiet, efficient inverter generator with electric and remote start Expandable: solar or wind can be added later using an external charge controller UK-based support 7 days a week The price includes a basic set of cables, protection disconnectors, and accessories required to create a fully operational system. User manuals and a connection diagram will be supplied with your order. Mounting not included - if you require a mounting system, select a suitable option here or contact us on on [email protected] or 020 8064 0335 for advice. Do you need installation service for your off-grid kit? We can arrange! Safety and installation guidance Ensure compliance with the latest safety standards When installing in or near residential premises, the installer must ensure that the battery system complies with PAS 63100:2024 – Electrical Installations: Protection Against Fire of Battery Energy Storage Systems for Use in Dwellings. Flexible and secure installation The preferred location for battery storage is outside, away from living areas. These batteries are designed for outdoor installation, offering flexibility and reducing time spent on setup. Remote monitoring is available via smartphone or web portal. The system must be installed by a qualified electrician or technician in compliance with all applicable regulations and guidance. For residential installations, guidance provided here must be followed. Photonic Universe LFP48-100 48V 5.12kWh LiFePO₄ Batteries Highly scalable: can be paralleled with up to 15 units, allowing for total energy storage expansion to meet large-scale demands. Extended lifecycle: Provides up to 6,000 cycles at 95% depth of discharge, delivering years of reliable performance. Advanced safety features: Comprehensive BMS protection against: Overcharging Over-discharging Over-current High or low temperatures Short circuits Wall-mounted design: Supplied with a mounting bracket for secure wall installation, saving space and offering easy access. Optimised performance: Intelligent features like cell balancing, current limiting, and capacity retention ensure efficient operation. Soft start functionality: Reduces high current impact during inverter startups to extend system life. Smart monitoring: Connect via Wi-Fi or Bluetooth to a mobile app for monitoring and configuration, including the selection of communication protocols (CAN and RS485) for compatibility with leading inverter brands. ▼ 8kW/15-20kWh ESS Specifications TYRANN 8.0kW 48V SINGLE PHASE OFF-GRID INVERTER CHARGER Nominal battery voltage: 48Vdc Continuous power output: 8000W/8000VA 220-240VAC 50Hz Peak power: 24000W Output waveform: Pure sine wave Maximum AC charging current: 110A AC transfer current: 50A Zero load power: 26W Peak efficiency: 96% Operating temperature: -40°C to 65°C Ingress protection: IP21 Size: 620 x 320 x 164 mm Net Weight: 36kg LFP48-100 48V 5.12KWH WALL-MOUNTED SOLAR BATTERY Battery type: Lithium-Ferro-Phosphate (LFP) Nominal capacity: 5120Wh Usable capacity: 4864Wh Nominal voltage: 51.2V Charge/discharge current: Maximum: 100A/100A Charge/discharge current: Recommended: 50A/50A Communication port: RS485/RS232/CAN Cycle Life: 6,000+ cycles (at 25°C, at 95% depth of discharge) Installation location: Indoor Cooling: Natural Parallel quantity: Up to 15 Operating temperature: Charge at 0°C to ~ +45°C; discharge at -10°C to ~ +50°C IP rating: IP21 Net weight: 45kg Size: 590 x 442 x 177 mm EXCEL POWER XL10000i 8800W PETROL INVERTER GENERATOR Model: Excel XL10000i Maximum power: 8,800W/8.8kW Continuous power: 8,200W/8.2kW Fuel consumption: ≤370g/kWh Phase: Single Voltage: 240VAC Frequency: 50Hz Engine model: Senci SV460B Engine type: 4-Stroke Forced Air-Cooled Engine size: 359cm3 Max power output: 16hp Fuel: Petrol Fuel capacity: 27L Engine oil: 10w40 / 10w40 / 15w40 / 15w40 Engine oil capacity: 1100mL No. of cylinders: 1 Features: ECO mode, low oil shutdown Noise level @ 7m: 59db(A) on low idle Net weight: 107.1kg Fully assembled dimensions (H x W x L): 752 x 634 x 665mm ▼ 8kW/15-20kWh ESS In the Box 3x or 4x LFP48-100 48V 5.12kWh Wall-mounted LiFePO4 battery- 1 X pallet, 1x TYRANN Off-Grid 8000W 48V Pure Sine Wave Inverter Charger - 1 X carton, 1x set of cables, disconnectors, and accessories, and 1x Excel XL10000i 8800W Inverter Generator - 1 X pallet. ▼ 8kW/15-20kWh ESS FAQ's BATTERY BANK Warning: Never mix batteries within the battery bank. All batteries must be of the same type, size, and general age. Using an old, mismatched, or faulty battery can cause significant issues. Note: New batteries behave like older ones initially and require a few cycles to function optimally. 1. What is the battery bank capacity of the 8kW/15-20kWh ESS? The 8kW/15-20kWh ESS utilises three or four LFP-100 48V 5.12kWh Lithium Iron Phosphate (LFP) batteries, providing a total capacity of 15/20Wh if connected in parallel. Its patented structural design ensures optimal use of active materials, significantly enhancing both the utilisation rate of active material and the efficiency of the battery's internal space. This system delivers exceptional performance, even during high-current discharge scenarios. 2. What is the cycle life of the battery? The batteries are rated for 6,000+ cycles at 95% depth of discharge (DoD). 3. How can I maximise the lifespan of the battery? Regular Charging: The battery must be charged at least once every six months. During this maintenance charge, ensure the State of Charge (SoC) exceeds 90%. Annual Checks: After installation, inspect the power connector, grounding points, power cables, and screws annually. Ensure there are no loose connections, broken components, or signs of corrosion. Verify the installation environment is free from dust, water, and insects, and remains suitable for an IP20-rated battery system. Storage Maintenance: If the battery is stored for extended periods, recharge it every six months to maintain an SoC above 90%. 4. What are the battery care and storage instructions? Storage Charging: Recharge the battery every six months when stored, ensuring the SoC is at least 90%. Post-Discharge Recharging: Recharge the battery within 12 hours after a full discharge. Environment Restrictions: Avoid installing the battery in outdoor environments or locations outside the operational temperature or humidity range specified in the manual. 5. When should I charge my battery? LiFePO4 batteries do not require charging after every use unless fully discharged. They are not damaged by remaining in a partial state of charge (PSOC). Charge the battery after use or when it has been discharged to 80% depth of discharge (DoD), leaving a 20% state of charge (SoC). 6. What should I do if the battery bank loses power too quickly? Check Appliance Power: Verify whether high-power electrical appliances are connected. For example, with a 15kWh or 20kWh Off-Grid Energy Storage System, if a connected appliance consumes approximately 2,000W, the battery will last about 6.5 hours (from the full 15kWh charge) or 8.6 hours (from the full 20kWh charge) when discharged from 100% to 10%. DC TO AC INVERTER 1. What does a power inverter do? A power inverter converts battery power into mains electricity. Specifically, it transforms 48V direct current (DC) into 230V alternating current (AC). This 230V AC matches the electricity supplied by utility companies and is suitable for household appliances like lights, televisions, and refrigerators. In the 8kW/15-20kWh ESS the TYRANN Off-Grid 8000W 48V Pure Sine Wave Inverter Charger is used to create a home 230V "grid". 2. What type of inverter is used in the 8kW/15-20kWh ESS? The system uses a pure sine wave AC Coupled inverter rated at 8000W. This inverter outputs a smooth, harmonic sine wave resembling utility-supplied power. It seamlessly switches polarity ("+" and "-") between power cables and adjusts voltage gradually to meet demand. This inverter design ensures compatibility with a wide range of appliances. 3. What are the key feature of this inverter? 8000W 48V Pure sine wave inverter: Converts DC current into 230V AC mains electricity to power household appliances such as TVs, laptops, fridges, microwaves, and lighting. Delivers 8000W continuously, with a peak capacity of 24000W to support appliances requiring high starting currents, such as pumps or vacuum cleaners. Enhanced 110A smart battery charger: Enables fast, efficient (up to 110A), and safe charging of batteries from a generator, featuring multiple charging stages and overcharge protection. System expansion potential: Can be connected in parallel with up to three inverters for system expansion, handling up to 24kW. Supports 3-phase operation for industrial-grade machinery. 4. What are the additional feature of this inverter? Automatic Generator Start (AGS): Activates a generator only when necessary for optimal energy use. Power Assist and Control: Allows a small generator to handle heavy loads by supplementing power as needed. User-Friendly Monitoring: Features the Nova Web and mobile app via the TBB-KIN2 Kinergy-II Wi-Fi module for remote monitoring and control. Reliable Operation: A fast 4ms switch ensures uninterrupted power during outages. ECO mode maximises battery backup time with low energy consumption. High Efficiency: Achieves 96% inverter efficiency and 98% MPPT efficiency, maximising energy output. 5. WHAT CAN I USETYRANN 8000W 48V INVERTER FOR? The 8000W 48V off-grid inverter charger is selected based on typical power consumption for standard household appliances. Refer to the table below for examples. Equipment Continuous power rating of inverter --- Home and kitchen appliances --- Power consumption 3000W 5000W 6000W or more Table fan* 50W Ok Ok Ok Sewing machine* 100W Ok Ok Ok Halogen light** 100W Ok Ok Ok Pedestal fan* 100W Ok Ok Ok Blender* 350W Ok Ok Ok Small fridge* 200W Ok Ok Ok Large fridge* 500W Ok Ok Ok Washing machine (no heating)* 700W Ok Ok Ok Microwave oven** 900W Ok Ok Ok Coffee maker* 1200W Ok Ok Ok Iron 1500W Ok Ok Ok Hair dryer* 1200W Ok Ok Ok Toaster 1200W Ok Ok Ok Vacuum cleaner* 2000W Ok Ok Ok Dishwasher* 1500W Ok Ok Ok Hob 1500W Ok Ok Ok Washing machine (with heating)* 2000W Ok Ok Ok --- Audio and video appliances --- 3000W 5000W 6000W or more 12'' colour LCD TV 20W Ok Ok Ok Satellite TV receiver 30W Ok Ok Ok HiFi stereo with CD changer** 50W Ok Ok Ok DVD / Blu-ray player 50W Ok Ok Ok 20'' colour LCD TV 100W Ok Ok Ok 42'' colour LCD TV 200W Ok Ok Ok 100W stereo amplifier** 200W Ok Ok Ok Home theatre system** 500W Ok Ok Ok Active speaker 250W RMS** 500W Ok Ok Ok Active speaker 500W RMS** 1000W Ok Ok Ok --- Computers and home office --- 3000W 5000W 6000W or more Mobile phone charger 5W Ok Ok Ok Small inkjet printer 40W Ok Ok Ok Laptop 50W Ok Ok Ok Fax machine 50W Ok Ok Ok Desk lamp 50W Ok Ok Ok Desktop computer with 17'' monitor 400W Ok Ok Ok Large laser printer* 800W Ok Ok Ok - Power tools and other equipment - 3000W 5000W 6000W or more Drill* 800W Ok Ok Ok Electric chainsaw* 1000W Ok Ok Ok Electric lawn mover* 1000W Ok Ok Ok Pressure washer* 1000W Ok Ok Ok Grinder* 2000W Ok Ok Ok Air compressor* 2000W - - Ok Appliances marked with an asterisk (*) are likely to have a starting power consumption several times higher than their normal operating power. This is typically due to the presence of electric motors. For example, an electric lawnmower with a normal operating power of 1,000W may have a starting power of over 4,000W. An inverter with a continuous power of 3,000W is suitable in such cases because it can handle a peak power of up to 6,000W.* **Appliances without electric motors may also have variable power consumption with occasional spikes. These spikes necessitate a larger inverter than would typically be required for devices with similar nominal power ratings. Please note: This table is for general guidance only. The actual power consumption and starting power requirements of your appliances may vary significantly. Always check the specifications of your devices to confirm their continuous and starting power requirements. If multiple devices are connected to the inverter, the total power consumption should be the sum of all connected appliances. This total will determine the inverter capacity required. 6. Why are a 48V battery bank and a 48V DC to 230V AC inverter used in this system? This configuration offers several key advantages: The inverter’s input current is two to four times smaller at 48V compared to 24V and 12V, respectively, improving system safety and reliability. The cables connecting the battery to the inverter can be thinner than those required for a 24V or 12V system, reducing material and installation costs. 7. What AC inputs/outputs does the inverter have? 1 x 100A 230VAC INPUT; 2 x 50A 230VAC OUTPUT. 8. Does the inverter have wireless control? The inverter can be set up to send data to an online user portal using a NOVA WEB & APP. 9. What should I do if the inverter cannot power electrical appliances? Confirm that the inverter's output power meets the power requirements of the connected appliances. If a warning is displayed, follow the troubleshooting steps outlined in the User Manual. 10. What should I do if an appliance's usage time is too short? The inverter operates at less than 100% efficiency, with the best efficiency being approximately 98%. Actual usage time may vary depending on the continuous power demand of the appliance. For an accurate calculation of usage time, contact Energian Customer Service with the specifications of your appliances. If you have any questions, please call us on 020 8064 0335 or email [email protected].
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