X1-IES-6K
The Solax X1-IES-6K is a 6 kW all-in-one single-phase hybrid inverter with integrated BMS, designed for residential photovoltaic systems with plug-and-play storage. Equipped with 3 MPPT, PV oversizing up to 200%, compatible with 5.1 kWh LFP TP-HS50E batteries (expandable up to 20.4 kWh), IP66 protection rating, and 10-year warranty. Intelligent load management with VPP function, micro-grid, and 7×24 ToU.
The Solax X1-IES-6K is a single-phase 6 kW integrated energy storage system (IES — Integrated Energy Storage), designed for residential photovoltaic systems and small commercial installations. Unlike traditional hybrid inverters, it integrates the inverter, the BMS (Battery Management System), and the modular battery rack into a single device — making installation fast, tidy, and plug-and-play.
What is the Solax IES system?
The X1-IES series from Solax Power represents the evolution of the residential storage concept: everything in a single cabinet, with no separate wiring between inverter and battery. The system is expandable by connecting from 1 to 4 TP-HS50E 5.1 kWh battery modules, for a total capacity ranging from 5.1 kWh to 20.4 kWh. The cobalt-free LiFePO4 lithium-ion technology ensures safety, longevity, and thermal stability even in extreme environments (down to −30 °C thanks to the integrated battery heating system).
X1-IES-6K Technical Specifications
| Nominal AC Power | 6.0 kW |
| Max DC Voltage | 600 V |
| No. of MPPT | 3 independent (1/1/1) |
| Max DC Input Current | 20 A per MPPT |
| PV Oversizing | 200% |
| Max Charge/Discharge Current | 50 A |
| Compatible Batteries | LFP TP-HS50E (5.1 kWh × 1-4 modules) |
| Total Storage Capacity | 5.1 – 20.4 kWh |
| Protection Rating | IP66 |
| EPS (backup) Function | Yes |
| Energy Management | VPP, micro-grid, ToU 7×24, Smart Scene |
| Monitoring | SolaxCloud (Wi-Fi, Ethernet) |
| Dimensions | 717 × 350 × 210 mm |
| Weight | 28 kg |
| Warranty | 10 years |
Main Features
The X1-IES-6K model is designed to maximize self-consumption thanks to the Time of Use (ToU) 7×24 function, which automatically optimizes battery charging and discharging based on energy tariffs. The micro-grid function allows third-party string inverters to remain operational even during off-grid periods. Intelligent load management (heat pumps, EV charging stations) and compatibility with the SolaxCloud platform make the system suitable for modern, interconnected installations. SPD Type II protection on both AC and DC sides, the AFCI option, and the IP66 rating ensure reliability even in harsh environments.
Frequently Asked Questions
Does the Solax X1-IES-6K include the batteries or are they purchased separately?
The X1-IES-6K is only the inverter with integrated BMS structure. The TP-HS50E batteries (5.1 kWh each) are purchased separately and connected to the system in a modular configuration, from 1 to 4 modules for a maximum total of 20.4 kWh.
What is the difference between Solax X1-IES and X1-HYB?
The X1-HYB is a traditional hybrid inverter to which external batteries (high or low voltage) are connected. The X1-IES, on the other hand, is an all-in-one integrated system: inverter, BMS, and battery compartment are in the same cabinet. The IES system uses high-voltage TP-HS50E batteries (102 V) and offers a more compact and easier-to-install solution, with a 10-year warranty instead of 5.
Does the IES system work in case of a grid blackout?
Yes, the X1-IES-6K integrates the EPS (Emergency Power Supply) function that powers household loads in case of a power outage. Thanks to the micro-grid function, it is also possible to keep third-party string inverters running during off-grid periods.
How many photovoltaic panels can be connected to the X1-IES-6K?
The X1-IES-6K has 3 independent MPPTs with a maximum current of 20 A per string and a max DC voltage of 600 V. It supports PV oversizing up to 200% of the nominal power, so you can connect modules for a total peak power of up to 12 kWp.
How do you expand the storage capacity of the X1-IES system?
You simply add TP-HS50E battery modules (5.1 kWh each), up to a maximum of 4 modules for a total of 20.4 kWh. The modules are stacked inside the same IES system cabinet, with no need for intervention on the inverter or existing wiring.
