Selection: 60kWh battery capacity.
Rationale: The 60kWh capacity was chosen based on the convenience store s average daily power consumption and emergency backup requirements, ensuring adequate power supply during non-peak hours and several hours to half a day of operation during outages.
Benefits: This battery capacity meets daily energy needs, provides reliable backup during power outages, and ensures continuous operation of critical functions.
Advantage: The 60kWh battery reduces grid reliance, enhances operational resilience, and maintains business continuity during emergencies.
Selection: 30kW Power Conversion System (PCS) with MPPT and STS.
Rationale: The 30kW PCS was selected for its ability to charge the battery from both the grid and solar array and to convert battery-stored DC power into AC for store use, efficiently managing peak power demands.
Benefits: This configuration provides dual functionality, supports high-efficiency charging and discharging, and ensures rapid response to power needs.
Advantage: The 30kW PCS enhances power management flexibility, improves energy efficiency, and supports reliable operation during peak and emergency conditions.
Selection: 15kW photovoltaic array.
Rationale: The 15kW solar array was chosen based on local sunlight intensity and available rooftop space, with an expected daily generation of 75kWh from approximately 5 hours of sunlight.
Benefits: This setup maximizes solar energy utilization, reduces reliance on the grid, and enables battery charging during the day for use at night.
Advantage: The 15kW photovoltaic array effectively leverages solar power, providing a sustainable energy source and minimizing operational costs.
Battery Energy Storage | ||||||||
| Cell Chemistry | Module Energy (kWh) | Module Nominal Voltage (V) | Module Capacity (Ah) | Battery Module Combination | System Nominal Voltage (V) | System Operating Voltage (V) | System Energy (kWh) | Charge/Discharge Current (A) |
| LiFePO4 | 5.12 | 51.2 | 100 | 6S2P | 307.2 | 281.25~340.8 | 61.44*6 | 100*6 |
PV Input | ||||||||
| Max. Power(kW) | Max. Voltage(V) | Start-up Voltage(V) | Rated Voltage(V) | MPPT Voltage Range(V) | Number of MPP Trackers | Max. PV Input Current(A) | ||
| 15 | 550 | 80 | 360 | 80-520 | 4 | 40/40/40/40 | ||
AC Output | ||||||||
| Max. Output Power(kW) | Peak Output Power, Time(kVA,s) | Rated Voltage(V) | THDv(@Rated Power) | Switch Time(ms) | ||||
| 33 | 45, 7s | 120/208 | <3% | <10 | ||||
High-quality battery cells combined with smart management extend battery life and reduce operational costs. The system promotes sustainability by using solar energy and provides real-time monitoring for proactive maintenance, enhancing overall efficiency and ease of use.
Equipped with smoke detectors and aerosol fire suppression, the system offers robust safety measures. It supports seamless integration with photovoltaic panels and diesel generators, allowing flexible energy switching to enhance stability.
The system features an advanced Battery Management System (BMS) that monitors key parameters to maintain optimal battery performance and lifespan. Integrated thermal management with efficient cooling ensures safe operation even in extreme temperatures, preventing overheating and maintaining reliability.
Integrated BMS and remote monitoring enable real-time battery management and preventive maintenance, minimizing downtime. The intuitive system design makes it easy for staff to operate, reducing training costs.
Robust safety measures ensure stable operation in extreme conditions, minimizing fire risks and protecting assets. Solar self-consumption reduces dependence on fossil fuels and lowers carbon emissions, supporting sustainability goals.
The system uses high-quality battery cells with intelligent BMS and thermal management to enhance battery life and energy density, reducing total cost of ownership (TCO).
