X1-HYBRID-7.5-D
The Solax X1-HYBRID-7.5-D is the top-of-the-line single-phase 7.5 kW hybrid inverter from the G4 series, with integrated DC isolator. Compatible with Solax Triple Power HV batteries (up to 34.8 kWh), 2 MPPT, PV oversizing up to 200%, EPS backup <10 ms, parallel operation up to 15 kW, VPP-ready, IP65 protection and 10-year warranty. Ideal for homes with heat pumps or high energy consumption.
The Solax X1-HYBRID-7.5-D is a single-phase hybrid inverter with 7.5 kW output and integrated DC isolator, the flagship model of the X1-Hybrid G4 series for residential applications. Compatible with Solax Triple Power high-voltage batteries, it offers charging and discharging efficiency up to 97%, EPS backup function, and PV oversizing up to 200%. It is the ideal choice for homes with high energy consumption or large photovoltaic systems (up to 15 kWp).
Why choose the 7.5 kW model?
Compared to the 5 and 6 kW models, the X1-HYBRID-7.5-D is designed for homes with higher loads: heat pumps, induction cooktops, large air conditioning systems, or simply families with average consumption above 5,000 kWh/year. With a nominal AC output of 7.5 kW and support for on-grid and off-grid parallel operation up to 15 kW (2 inverters in parallel), it can scale to cover even high-end consumption without changing the system architecture. The integrated DC isolator (suffix "-D") simplifies the electrical panel.
X1-HYBRID-7.5-D Technical Specifications
| Nominal AC Power | 7.5 kW |
| Max DC Voltage | 600 V |
| No. of MPPT | 2 independent (1 string/MPPT) |
| Max DC Input Current | 16 A per string |
| PV Oversizing | 200% |
| Battery Voltage | High Voltage HV (Solax Triple Power) |
| Charge/Discharge Efficiency | up to 97% |
| EPS Backup Function | Yes, <10 ms |
| On/Off-grid Parallel | Yes, up to 15 kW (2 units) |
| VPP-ready | Yes |
| Shading Tracking | Yes (integrated) |
| Protection Rating | IP65 |
| Dimensions | 482 × 417 × 181 mm |
| Weight | 23 kg |
| Warranty | 10 years |
Main Features
The X1-HYBRID-7.5-D is VPP-ready (Virtual Power Plant), enabling participation in dispatching markets and grid ancillary services. It supports integration with Solax EV wallbox (X1-EVC) and heat pumps, with intelligent load management and response within 0.3 seconds via CT. Monitoring is done via SolaxCloud (Wi-Fi/Ethernet via optional Pocket Dongle) with the possibility of remote firmware updates. The EPS function offers switching in less than 10 ms, ensuring power continuity for critical loads even during prolonged blackouts.
Frequently Asked Questions
Is the Solax X1-HYBRID-7.5-D suitable for an air-to-water heat pump?
Yes, the 7.5 kW AC output is sufficient to handle the start-up peak of most residential air-to-water heat pumps from 5-8 kW thermal. The included CT allows real-time load control with a response within 0.3 seconds, automatically optimizing the balance between PV production, battery, and grid to minimize grid withdrawals during pump operation.
Which battery is compatible with the X1-HYBRID-7.5-D?
The X1-HYBRID-7.5-D is compatible with Solax Triple Power high-voltage (HV) batteries, ranging from 5.8 kWh to 34.8 kWh (up to 6 modules). The operating voltage is between 85 and 480 V. It is not compatible with low-voltage (LV) batteries — for those, the X1-HYB-LV model is required.
What is the difference between X1-HYBRID-7.5-D and X1-HYBRID-6.0-D?
The main difference is the nominal AC power: 7.5 kW vs 6 kW. The 7.5 kW model also supports parallel operation up to 15 kW (2 units) instead of 10 kW for the 6 kW. All other features — MPPT, HV battery compatibility, EPS, shading tracking, VPP — are identical. The 7.5 kW is recommended for homes with consumption peaks above 6 kW or PV fields from 10-15 kWp.
Is the X1-HYBRID-7.5-D CEI 0-21 certified for the Italian grid?
Yes, like the entire X1-Hybrid G4 series, the X1-HYBRID-7.5-D is CEI 0-21 certified, a mandatory requirement for low-voltage connection to the Italian grid and essential for GSE connection procedures and access to photovoltaic incentives.
How many photovoltaic panels can be connected to the X1-HYBRID-7.5-D?
Thanks to the 200% PV oversizing, you can connect modules for a total peak power of up to 15 kWp, divided over 2 independent MPPTs with 16 A maximum current per string. The maximum DC voltage is 600 V. This configuration is particularly effective for systems with partial shading or dual east/west orientation.
