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China Suppliers: Photovoltaic-Electric Hybrid Energy Storage System - 48 kWh Capacity from Reliable Factory
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Photovoltaic Power Generation Unit
Utilizes high-efficiency monocrystalline or polycrystalline silicon photovoltaic panel arrays to capture solar energy through Maximum Power Point Tracking (MPPT) technology, converting light energy into direct current (DC) electricity.
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Energy Storage and Conversion Unit
DC power is converted to AC via smart inverters and simultaneously stored in lithium iron phosphate (LFP) batteries. These batteries feature extended cycle life (≥5000 cycles), high safety, and wide operating temperature range (-20°C to 60°C), ensuring stable energy storage and release.
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Intelligent Management System
An integrated EMS (Energy Management System) continuously monitors PV generation, battery status, and load demands. It intelligently schedules "self-generation for self-consumption with surplus storage," supports grid-connected/off-grid dual-mode switching, and ensures uninterrupted power supply during outages.
📋 Product Specifications
| Model | SPVLI-48KWH-INV30KW | |
| Isolation Mode | Low Frequency Transformer | |
| ⚡ Inverter Part | ||
| Battery Input | Rated Voltage (Vdc) | 460VDC |
| Voltage Range (Vdc) | 388–518V | |
| AC Output | Rated Output Power | 30KW |
| Output Waveform | Pure Sine Wave | |
| Rated Voltage | 120/240VAC | |
| Phases | Split Phase + N + PE | |
| Rated Current (A) | 125A (Phase Current) | |
| Frequency | 60Hz | |
| Power Factor (PF) | >0.95 | |
| Inverter Efficiency | >92% | |
| Display | LCD + LED | |
| Overload Ability | 150%, 35 Seconds | |
| 🔌 AC-DC Charger Part | ||
| AC Input | Voltage Range (Vac) | 90–280Vac |
| DC Output | Rated Voltage (Vdc) | 460Vdc |
| Rated Current (A) | 40A | |
| 🔋 Lithium Battery Part | ||
| Cell / Number | 105AH / 144PCS | |
| Rated Voltage | 460V | |
| Max Charge Current | 50A | |
| Max Discharge Current | 50A | |
| Charge Temperature Range | 0°C ~ 50°C | |
| Discharge Temperature Range | -20°C ~ 50°C | |
| Cell Charge End Voltage | 3.6V | |
| Cell Discharge End Voltage | 2.7V | |
| 🛡️ Protection & General | ||
| Protection Function | Protection | Input reverse polarity, under voltage, over voltage, output over-current, short circuit, overheating, etc. |
| Cooling Method | Fan-Cooled | |
| Degree of Protection | IP20 (Indoor) | |
❓ Frequently Asked Questions
Q
What type of battery does the SPVLI-48KWH-INV30KW system use, and how long does it last?
The system uses lithium iron phosphate (LFP) batteries, which are known for their superior safety, thermal stability, and long service life. These batteries are rated for ≥5000 charge/discharge cycles, making them one of the most durable options available for residential and commercial energy storage applications.
Q
Can this system operate during a grid power outage?
Yes. The integrated EMS (Energy Management System) supports both grid-connected and off-grid dual-mode switching. During a grid outage, the system automatically transitions to off-grid mode, drawing from stored battery energy to ensure uninterrupted power supply for connected loads.
Q
What is the rated AC output power and what voltage does it support?
The system delivers a rated AC output power of 30KW with a pure sine wave output. It supports 120/240VAC split-phase output (Split Phase + N + PE), making it compatible with standard North American electrical systems. The rated phase current is 125A at 60Hz frequency.
Q
What protection features are built into this solar energy storage system?
The system includes comprehensive protection mechanisms such as input reverse polarity protection, under-voltage and over-voltage protection, output over-current protection, short circuit protection, and overheating protection. It also features fan-cooled thermal management and an IP20 indoor protection rating.
Q
What is the operating temperature range for charging and discharging the battery?
The battery supports charging within a temperature range of 0°C to 50°C, while discharging is supported across a wider range of -20°C to 50°C. This wide operating range ensures reliable performance across diverse climates and seasonal conditions.
Q
How does the MPPT technology improve solar energy efficiency in this system?
Maximum Power Point Tracking (MPPT) technology continuously adjusts the electrical operating point of the photovoltaic panel arrays to extract the maximum possible power under varying sunlight and temperature conditions. This ensures the solar panels always operate at peak efficiency, significantly improving the overall energy yield of the system compared to conventional charge controllers.