5kw off grid solar system
High-Efficiency 5.5kW 5.12kWh Off-Grid Solar Energy Storage System | OEM/ODM Manufacturer
Discover our high-efficiency 5.5kW 5.12kWh integrated off-grid solar energy storage system. Features built-in MPPT controller, pure sine wave inverter, and Tier-1 compatible N-Type/TopCon bifacial solar panel support. Contact our custom solar module factory for wholesale pricing.
5.5kW 5.12kWh Energy Storage Controller Inverter Integrated Machine
As an experienced OEM solar panel manufacturer and energy solution provider, we offer the ultimate all-in-one off-grid power station for residential and commercial applications: the 5.5kW 5.12kWh Energy Storage Controller Inverter Integrated Machine.
This wall-mounted system seamlessly integrates a pure sine wave inverter, an MPPT solar charge controller, a high-performance utility charger, and a lithium iron phosphate (LiFePO4) battery bank into a single premium chassis. It delivers an engineered, stable power supply for regions facing high electricity tariffs, grid instability, or complete lack of power.
⚡ Key Product Features
- Pure Sine Wave Output: Provides clean AC power with minimal harmonic distortion, protecting sensitive electronics, medical equipment, power tools, and household appliances.
- Built-in Smart MPPT Controller: Engineered with a wide PV input range (120V–450VDC) and a 100A charging current to maximize yield from advanced TopCon and bifacial solar panels.
- Automated Battery Equalization: Features programmatic equalization to reverse cell stratification and eliminate sulfation, optimizing total battery capacity and extending system service life.
- Flexible Priority Modes: Easily program utility-first, solar-first, or SBU (Solar-Battery-Utility) working priorities via the smart LCD interface.
📊 Technical Specifications
1. Inverter & Controller Core
Parameter | Technical Specification |
Rated Output Power | 5.5kW / 5500W |
AC Output Voltage | 220VAC / 230VAC / 240VAC |
Peak Conversion Efficiency | 93% |
Transfer Time | 10ms (Computers) / 20ms (Home Appliances) |
Nominal Battery Voltage | 48VDC |
Max. PV Input Power | 6kW (6000W) |
MPPT Voltage Range | 120VDC - 450VDC |
Max. PV Input / Charging Current | 18A / 100A |
IP Rating & Dimensions | IP20 / 588*300.4*198mm |
2. Integrated Lithium Battery Pack (LiFePO4)
Parameter | Battery Module Data |
Model & Chemistry | AIO 5000A / Lithium Iron Phosphate (LiFePO4) |
Rated Capacity | 5.12 kWh / 51.2V 100AH |
Discharge Voltage Range | 43.2V - 57.6V |
Depth of Discharge (DOD) | 90% |
Standard Cycle Life | more than 6000 Cycles @ 80% DOD, 25°C |
Communication Interface | RS485 / CAN / RS232 / Dry Contacts |
🛠️ System Schematic & Applications
The integrated machine coordinates four essential components into a smart microgrid:
- Photovoltaic Modules: High-efficiency monocrystalline or bifacial solar panels convert ambient light into DC power.
- AC Source: Connects to utility grid or fuel generators to supply the load directly while charging the battery bank.
- Integrated Core Unit: Houses the conversion control system, dynamically balancing $DC-to-AC$ power routing.
- Household Loads: Safely powers appliances, including high-surge inductive loads like air conditioners and water pumps.
🏭 B2B Wholesaler & OEM Customization
Catering to international EPC contractors, regional installers, project developers, and bulk distributors:
- Tailored OEM/ODM Production: Custom enclosure branding, UI configurations, and custom BMS protocols (CAN/RS485 matching).
- Global Compliance: Built to global safety standards. Features hardware fault-logging (Fault Codes 01–59) and integrated dry contacts to trigger backup diesel generators automatically.
- Scalable Infrastructure: Pre-configured DIP switch matrix supports multi-pack parallel wiring for modular capacity expansion.
❓ Frequently Asked Questions (FAQ)
Q1: How do solar panels work with this integrated energy storage system?
A: Photovoltaic (PV) modules capture solar energy to generate DC electricity. The machine's integrated MPPT controller optimizes this power to safely charge the built-in 5.12kWh battery array while the pure sine wave inverter feeds your household AC appliances.
Q2: What is the benefit of pairing this system with TopCon or Bifacial solar panels?
A: TopCon and bifacial technologies offer superior conversion efficiency. Our inverter handles up to 6kW of PV input power with a wide 120V–450V operating window, maximizing the double-sided energy gain from bifacial panels without over-tripping voltage limits.
Q3: Can I run this off-grid system without utility grid power?
A: Yes. If no backup grid or generator is connected, the system operates in full off-grid autonomy. It prioritizes real-time solar panel output to power connected loads, smoothly drawing supplementary power from the 48V battery storage as needed.
Q4: How long do the integrated lithium iron phosphate (LiFePO4) batteries last?
A: Our LiFePO4 battery packs are rated for over 6,000 cycles at an 80% Depth of Discharge (DOD) at 25°C. Under standard operating parameters, this equates to a reliable service lifespan exceeding 10 to 15 years.