All-in-One 12kW+45kWh Solar Energy Storage System (Stackable)

Product Description

The Stackable All-in-One 12kW+45kWh Off-Grid Solar Energy Storage System is engineered for demanding power needs in remote, island, and grid-unstable environments. Combining a 12kW high-frequency hybrid inverter with a 45kWh automotive-grade LiFePO4 battery bank in a single integrated unit, this system delivers reliable, uninterrupted 24-hour power for residential villas, commercial stores, and large-scale off-grid projects. With its plug-and-play design, stackable modular architecture, and built-in dual MPPT controllers, it offers a professional-grade energy solution with zero installation complexity — simply connect your solar panels and power up.

Core Features

All-in-One Integrated Stackable System — Plug & Play Off-Grid Power Solution

Combines 12kW high-power inverter and 45kWh large-capacity LiFePO4 battery in one unit. No complicated matching work needed. Supports free stacking expansion, perfectly solves power shortage problems for villas, shops and remote island off-grid projects. Stable 24-hour uninterrupted power supply, zero installation threshold for engineering projects.

• ✅ Stackable design, easy to expand power capacity on demand
• ✅ Integrated 12kW hybrid inverter & 45kWh LiFePO4 battery, all-in-one compact structure
• ✅ Dual built-in MPPT controllers, high solar charging efficiency
• ✅ Wide PV voltage range, strong compatibility with solar panels
• ✅ 8000+ long cycle life, stable performance & long service time
• ✅ Support AC & DC simultaneous input, reliable power supply
• ✅ Equipped with universal casters, easy to move and install
• ✅ 220-240V 50/60Hz output, perfectly fit local power grid standard

Technical Specifications

• Inverter: 48V 12KW High-Frequency Hybrid Inverter
• MPPT: 2 built-in, single MPPT max 5000W
• PV Charge Voltage: 60–500V
• Max PV Voltage: 300–400V
• AC Output: 12KW, 220V–240V, 50Hz/60Hz
• Battery: 45kWh LiFePO4 (51.2V 300AH ×3)
• Cycle Life: ≥8000 cycles
• Mobile casters included
• AC & DC simultaneous input supported

Recommended Solar Panel Configuration

Based on the system's dual MPPT design (each max 5000W) and wide PV input range (60V–500V), the following solar panel setup is recommended for optimal performance:

• Recommended Panel Wattage: 400W–550W monocrystalline solar panels
• Per MPPT Channel: 9–12 panels in series (Voc approx. 380V–480V)
• Total Panels (Dual MPPT): 18–24 panels
• Maximum PV Array: 24 × 500W = 12,000W total input
• Compatible Types: Monocrystalline & polycrystalline panels

💡 Need solar panels? We supply matching solar panels to complete your off-grid system. Contact us or place your order together — we offer combined shipping and full system support to make your installation as smooth as possible.

Note: Actual configuration may vary depending on panel brand and local solar irradiance. Please consult our technical team for a customized solar design.

FAQ | Stackable All-in-One 12kW Inverter + 45kWh LiFePO4 Solar System

Q1: What is the maximum working power and battery capacity of this all-in-one energy storage system?

This integrated system is equipped with a 12kW high-frequency hybrid inverter and a built-in 45kWh LiFePO4 battery pack (51.2V 300Ah × 3 units). It supports continuous 12KW stable output, fully meeting the daily power consumption needs of residential villas, small commercial stores, and remote island off-grid projects.

Q2: Can this solar storage system be stacked and expanded?

Yes. It adopts a professional stackable modular design. Users can freely stack multiple units according to power demand growth to expand the overall power and capacity. The expansion operation is simple without complex wiring or equipment matching, which greatly saves later upgrade costs.

Q3: What solar panel voltage does the system support? Is it compatible with most solar panels?

The system has a wide PV voltage range of 60V–500V with a maximum PV voltage of 300–400V. It is compatible with most mainstream monocrystalline and polycrystalline solar panels on the market. Built with dual independent MPPT controllers (single MPPT max 5000W), it greatly improves solar charging efficiency and power generation utilization rate.

Q4: What is the service life of the LiFePO4 battery?

The system uses high-quality automotive-grade LiFePO4 batteries, with a super long cycle life of more than 8000 cycles. Under normal daily charge and discharge use, the battery can maintain stable performance for more than 8 years, with extremely low attenuation and high cost performance.

Q5: Does the system support both solar DC charging and grid AC charging?

Yes. It supports simultaneous AC and DC dual input. It can be charged by solar panels during the day and supplemented by grid power during cloudy days or periods of insufficient sunlight, realizing 24-hour stable uninterrupted power supply — ideal for areas with unstable or unreliable power grids.

Q6: Is the equipment easy to install and move?

This is an all-in-one plug-and-play system with an integrated structure, no complicated assembly and debugging required. The bottom is equipped with universal mobile casters, which support free handling and position adjustment. It greatly reduces installation time and labor costs, suitable for engineering projects and household self-installation.

Q7: Is the output voltage suitable for local power standards?

Yes. The system supports 220V–240V, 50Hz/60Hz universal AC output, which is compatible with power supply standards across Southeast Asia, the Pacific Islands, Europe, and other regions, and can directly drive local household and commercial electrical equipment.

Q8: What scenarios is this 12kW 45kWh energy storage system suitable for?

It is widely used in multiple scenarios, including island and remote area off-grid power supply, residential villa backup power, small supermarket/store commercial power supply, rural household power storage, engineering temporary power supply, and other off-grid and power failure backup scenarios.