This product is a parallel off grid energy storage system, which is an integrated box design that can combine power grid (diesel), photovoltaic power generation, and lithium battery energy storage. It integrates high-energy density lithium batteries EMS、PCS、BMS、 Integrated with liquid cooling system, fire protection system, and auxiliary power distribution system. The integrated design of temperature control system and battery management system ensures product safety, stability, and long-term operation. This product has an IP54 protection level, is mobile, easy to lift and transport, and has a short disassembly and assembly cycle. It is mainly used in electric vehicle charging stations, industrial and commercial energy storage, buildings, factories, family villas, farms and other places. The product has the advantages of safety and reliability, rapid deployment, high efficiency and convenience, and active system balancing.
Flexible and efficient: Standardized module design enables flexible configuration, easy installation without parallel circulation, significantly reducing energy loss, ensuring safety and stability
Equipped with a three-level fire protection system, achieving comprehensive protection and balanced management of batteries, extending battery life through intelligent collaboration: 3S collaboration, EMS closed-loop safety logic, realizing system safety
Precision liquid cooling temperature control design, achieving long-term stability, with a temperature difference of ≤ 3 ° C between different battery cells
Intelligent switching strategies for different scenarios: peak shaving and valley filling, capacity management, dynamic capacity expansion, new energy consumption, and planned curve response
Local and cloud monitoring linkage, digital rapid diagnosis, intelligent automatic inspection
Cabinet size: 2200 * 1850 * 1350
Photovoltaic power generation system
Composed of solar panels that convert solar energy into electrical energy, providing power to the load while charging the energy storage battery for backup. It is usually installed on rooftops or floors.
Energy Storage System
Mainly composed of battery packs, it is used to store surplus electricity from photovoltaic power generation, providing power at night or on cloudy days. It can also flexibly adjust energy storage charging and discharging according to electricity demand and prices, achieving peak shaving and valley filling or peak valley utilization.
Energy Management System (EMS)
Responsible for monitoring and optimizing the operation of the entire system to ensure efficient distribution and utilization of electricity.
power grid
Cooperate with photovoltaics to charge energy storage batteries and supply power to loads.
working principle
1. Photovoltaic power generation: Solar panels generate electricity during the day for use by loads or stored in energy storage systems, and excess electricity is sold to the grid.
2. Energy storage: Excess electrical energy is stored in the battery and used during peak hours or at night or on cloudy days.
3. Energy management: EMS optimizes power distribution based on demand and weather conditions.
4. Power grid: When the photovoltaic and energy storage power is insufficient on cloudy days or at night, the power grid supplements electricity to supply power to the load. At the same time, during periods of low electricity prices, the energy storage battery can be charged to achieve peak valley arbitrage.
configuration scheme
The total energy storage capacity of this scheme is designed to be 783.744 kWh, and the rated total power of the energy storage inverter is 315 kW.
The energy storage system adopts a liquid cooling scheme and is designed with an integrated outdoor waterproof cabinet, with a protection level of IP54.
This energy storage cabinet system includes 3 clusters of 832V314Ah (261.248kWh) lithium iron phosphate battery clusters, 3 sets of 105kW PCS, BMS management system, EMS energy management system, fire protection system, liquid cooling system, power distribution system, etc
Internal structural dimensions of the system:
Dimensions: Width 3800 * Depth 1450 * Height 2000mm
| Momdel | ESS-300kW/783kWh |
| DC side parameters: | |
| Cell Type | LFP-314Ah |
| rated energy | 783.744kWh |
| Battery configuration | 260S3P |
| rated voltage | 832VDC |
| DC working voltage range | 728～936VDC |
| Communication side parameters | |
| AC voltage | 380/400VAC |
| Voltage range of power grid | 320～460V |
| Rated grid frequency | 50Hz/60Hz |
| Grid frequency range | 45～55Hz/55～65Hz |
| rated power | 315kW |
| Maximum AC power | 346.5kW |
| Maximum AC current | 501A |
| Communication wiring method | Three phase five wire (3L+N+PE) |
| Total current waveform distortion rate | <5% (rated power) |
| power factor | ＞0.99(rated power) |
| Adjustable range of power factor | -1 (ahead of time) to 1 (lagging behind) |
| system parameters | |
| Working environment temperature | -25℃～55℃ |
| cooling method | Battery liquid cooling; PCS air cooling |
| Maximum efficiency of the system | >88% |
| number of cycles | ≥8000(0.5P/@25℃ 90%DOD EOL70%) |
| Protection level | IP54 |
| corrosion resistance grade | C4 |
| working altitude | <4000m |
| noise level | <75dB |
| Fire Protection Plan | Hot aerosol (optional perfluorohexane) |
| communication interface | CAN/LAN/RS485/4G |
| Dimensions (width * depth * height) | 3800*1450*2000mm |
| weight | About 8T |
Main accessories:
8KW liquid-cooled host
liquid cooling pipe
liquid-cooled plate
Independent energy storage power station
As an independent market entity, it participates in electricity market transactions. It can provide peak shaving (discharging during peak load periods) and frequency regulation (rapid response to grid changes)
Earn service revenue through various auxiliary services such as frequency fluctuation and standby. Multiple similar integrated cabinets can be connected in parallel to quickly build a 10MW/20MWh system
Even power stations of the megawatt-hour level
Microgrid and distributed energy applications constitute the core of microgrid: combined with distributed photovoltaic systems, small wind turbines, diesel generators, etc., they form self-sufficient microgrids for islands, remote outposts, and areas without electricity, providing stable and continuous power. Improve the penetration rate of distributed energy: in urban distribution networks, they alleviate issues such as reverse power flow and voltage violations caused by the large-scale integration of distributed photovoltaic systems.
Photovoltaic/wind power with energy storage: Plan tracking: Assist power stations in operating according to preset power generation curves.
Smooth output: Suppress the randomness and volatility of wind and solar power generation, ensuring that the power output of the plant aligns more closely with the grid dispatching requirements.
Abandoned power consumption: Storing wind and solar power that is abandoned due to insufficient grid consumption capacity, and releasing it when it can be delivered
Industrial and commercial park/factory peak-valley arbitrage: Charging during off-peak periods such as at night or during lunch breaks, and discharging during peak electricity price periods during the day or in the evening, directly saving on high electricity bills. This is its most direct and common profit model. Demand management: Real-time monitoring of enterprise electricity load, when the power consumption is about to exceed the "maximum demand" contracted with the grid, the energy storage system quickly discharges to "cut the peak", avoiding high demand electricity penalty fees. Power quality management: Mitigating issues such as voltage sag and fluctuation, ensuring stable operation of precision production equipment. Emergency backup power supply: In the event of planned power outages or grid failures, seamlessly switching to supply power to critical loads, ensuring production continuity
