Selection: Xtreme LV 30.72kWh ESS *2
Rationale: The customer s nighttime electricity consumption is 20 kWh. Choosing a 30 kWh battery storage system can fully cover this demand and leave some extra capacity to handle unexpected high load situations or potential future increases in electricity needs.
Advantage: The Xtreme LV series batteries use advanced lithium-ion technology for a long cycle life and high energy density, providing stable power while reducing maintenance and lowering overall ownership costs. They meet U.S. safety standards and include protections against overcharge, over-discharge, and over-temperature, ensuring safe operation in various conditions.
Selection: Sol-Ark 15kW LV Inverter *2
Rationale:The Sol-Ark 15K 2P inverter intelligently manages the energy flow between the photovoltaic panels, battery, and the grid, allowing for seamless switching between off-grid and grid-tied modes, thus improving energy efficiency. With a 15kW AC power capacity, it can cover most household loads and ensure the operation of essential devices even during grid outages.
Advantage:The design conforms to U.S. standards, ensuring compatibility with the local grid while supporting connections with various photovoltaic panels, enhancing system flexibility and scalability. The integrated design simplifies the installation process, and the built-in monitoring system facilitates remote diagnostics and maintenance, reducing operational and maintenance costs.
Selection: 12kW PV system
Rationale: A 12 kWp photovoltaic system is designed to meet the maximum input requirements of the Sol-Ark 15K 2P inverter. It is expected to generate 48-60 kWh per day, ensuring that the daily electricity generation exceeds the 40 kWh demand.
Benefits: High-efficiency photovoltaic panels suitable for California s sunlight conditions are selected to ensure good energy generation efficiency throughout different seasons.
Panels from well-known brands are chosen to ensure stable long-term performance, reduce the failure rate, and extend the lifespan of the system.
Battery Energy Storage |
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| System Energy (kWh) | Max. Charging Voltage (Vdc) | Nominal Voltage (Vdc) | Cycle Life | IP Rating | Installation Scene | |
| 30.72*2 | 54.75/58.4 | 48/51.2 | 8000 Cycles | IP65 | Indoor or Outdoor | |
PV Input |
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| Max. Allowed PV Power(kW) | Rated MPPT Operating Voltage Range(V) | MPPT Voltage Range(V) | Max. Operating Input Current per MPPT(A) | No. of MPP Trackers | No. of PV Strings per MPPT | |
| 19.5 | 175 ~ 425 | 150 ~ 500 | 26 | 3 | 2 | |
AC Output |
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| Nominal AC Voltage(V) | Real Power, max continuous(kW) | Max. Output Current(A) | Grid Frequency(Hz) | Max Efficiency | Enclosure | |
| 120/240, 120/208, 220 | 15 | 62.5 | 50 / 60 | 97.5% | IP65 / NEMA 3R | |
The photovoltaic panels are designed to withstand harsh weather conditions, while the battery system’s BMS provides multiple safety protections, ensuring long-term stability and safe operation of the system.
The battery system features deep charge discharge capabilities and an intelligent Battery Management System (BMS), extending battery lifespan and maintaining high energy storage efficiency.
Combines high energy density battery storage systems with intelligent energy scheduling in inverters to achieve high-efficiency energy transfer and optimal distribution from solar panels to the storage system and then to the load.
Utilizing renewable energy reduces fossil fuel consumption and lowers carbon emissions, aligning with principles of green and sustainable development.
In the event of a power outage, the battery storage system seamlessly takes over to provide continuous power to essential household devices, ensuring reliable operation.
The system’s ability to store excess solar energy for use during the night or cloudy days, combined with intelligent energy scheduling, reduces electricity bills, decreases reliance on external power grids, and achieves long-term energy cost savings.
