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Built for larger residential, commercial and high-demand energy systems, the Solis S6-EH3P29.9K-H-AU is a powerful three-phase high-voltage hybrid inverter that combines solar generation, battery storage, generator integration and backup power in one scalable platform.
With up to 59.8kW recommended PV array size, three MPPTs, dual battery ports, up to 140A combined battery input and <10ms backup switching, it is designed for systems that need strong solar input, fast charging, flexible backup and future expansion.
The Solis S6-EH3P29.9K-H-AU is well suited to:
Large three-phase residential systems
Commercial solar and battery installations
High-consumption properties
Generator-assisted backup systems
Multi-orientation PV arrays
VPP and smart energy management
Systems requiring future expansion
Sites with large critical loads
When paired with an HGNESS high-voltage modular battery, the Solis three-phase hybrid inverter becomes part of a scalable energy storage system designed for larger homes, businesses and backup-critical applications. The combination brings together Solis hybrid inverter control with HGNESS modular LiFePOβ storage, allowing more solar energy to be stored for later use, supporting backup power during outages and giving the system room to expand as energy demand grows. With smart solar utilisation, three-phase backup capability and modular storage architecture, the pairing is particularly well suited to high-consumption properties seeking greater energy independence and long-term flexibility.
Up to 59.8kW recommended PV array size
3 MPPTs with 6 PV string inputs
Up to 40A input current per MPPT
150β800V high-voltage battery support
Dual independent battery ports
Up to 140A combined battery input
<10ms on/off-grid switching
160% backup overload for 2 seconds
Generator integration up to 29.9kW
Simultaneous DC and AC coupling
Smart Load prioritisation for critical loads
Battery reserve function
Up to 10 units in parallel
SMARTLOAD / GEN / INV multi-source port
7-inch LCD with Bluetooth app
IP66 protection
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The inverter supports up to 59.8kW of recommended PV capacity with three MPPTs and six PV string inputs, making it suitable for larger or more complex solar arrays.
Each MPPT supports up to 40A input current, helping accommodate modern high-power PV modules. The battery side supports a 150β800V range with two battery ports and up to 70A per port, or 140A combined in parallel.
The S6-EH3P29.9K-H-AU provides 29.9kW rated backup output with switching in less than 10ms.
For short-duration starting loads, it can deliver up to 160% of rated apparent power for 2 seconds.
A dedicated generator input supports up to 29.9kW, while the SMARTLOAD / GEN / INV port allows flexible connection of additional energy sources such as generators, grid-tied inverters and wind systems.
The inverter supports both DC and AC coupling, battery reserve functions and Smart Load prioritisation for critical loads.
Up to 10 units can operate in parallel, allowing larger systems to scale as energy demand grows. For installations above six parallel units, Solis recommends a power distribution cabinet.
The platform also supports flexible energy-source integration and intelligent load management for more complex energy systems.
| Specification | S6-EH3P29.9K-H-AU |
|---|---|
| Rated AC Output Power | 29.9kW |
| Recommended Max. PV Array Size | 59.8kW |
| Number of MPPTs / Strings | 3 / 6 |
| Max. PV Input Current | 3 Γ 40A |
| Max. Short-Circuit Current | 3 Γ 45A |
| Max. PV Input Voltage | 1000V |
| MPPT Voltage Range | 150β850V |
| Battery Type | Lithium-ion |
| Battery Voltage Range | 150β800V |
| Battery Ports | 2 |
| Max. Charge / Discharge Current | 70A Γ 2 |
| Max. Charge / Discharge Power | 32.1kW |
| Rated Backup Output | 29.9kW |
| Backup Peak Output | 1.6 Γ rated power for 2s |
| Backup Switch Time | <10ms |
| Max. Generator Input Power | 29.9kW |
| Max. AC Passthrough Current | 86.4A |
| Max. Efficiency | 97.8% |
| EU Efficiency | 97.4% |
| PV-to-Battery Max. Efficiency | 98.5% |
| Battery-to-AC Max. Efficiency | 97.5% |
| Protection Rating | IP66 |
| Dimensions | 530 Γ 880 Γ 290mm |
| Weight | 73kg |
| Cooling | Intelligent fan cooling |
| Operating Temperature | -25Β°C to +60Β°C |
| Max. Operating Altitude | 4000m |
| Display | 7" LCD + Bluetooth + App |
| Communication | CAN, RS485, Ethernet; optional Wi-Fi, Cellular, LAN |
| Country of Manufacture | China |
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Integrated protection includes:
Anti-islanding protection
Output over-current protection
Short-circuit protection
Integrated DC switch
DC reverse-polarity protection
DC Type II surge protection
AC Type II surge protection
Optional AFCI 2.0
The IP66 enclosure and -25Β°C to +60Β°C operating range support use in demanding indoor and outdoor environments.
Complies with AS/NZS 4777.2:2020 and applicable IEC 62109-1/-2 and IEC 61000-6-2/-4 requirements.
The S6-EH3P29.9K-H-AU is designed for energy systems that need high PV capacity, fast battery charging, strong backup performance and flexible expansion.
Its dual battery ports, 140A combined battery input, generator integration and support for up to 10 units in parallel make it especially suitable for larger installations where scalability and energy resilience are important.
For commercial properties or high-demand homes seeking solar, storage, backup and multi-source energy integration in one platform, the 29.9kW Solarator provides a powerful and adaptable solution.
All our products are covered by the Manufacturer's Warranty, which guarantees that they will be free from defects in materials and workmanship under normal use and service. The specific terms and duration of the warranty may vary depending on the product and the manufacturer. Please refer to the product's documentation or contact our customer support team for detailed warranty information.
Warranty Claim Process
In the unfortunate event that you encounter a faulty product, we want to make the warranty claim process as seamless as possible for you. To initiate a warranty claim, please follow these steps:
If damage is confirmed to be from normal wear-and-tear, drops, unauthorized repairs, or other non-warranty factors, service and shipping fees will apply. In such cases, we will contact the customer for approval before proceeding with paid repairs.
Unfortunately we cannot provide loaner units during the warranty repair process. For mission-critical equipment, we highly recommend purchasing backup units to prevent downtime in case of defects.
You have 30 calendar days to return an item from the date you received it.
To be eligible for a return:
Upon receiving your order, we kindly request that you thoroughly inspect all packages within 7 days of delivery. This inspection period is crucial as it allows you ample time to identify any visible damage caused during transit. Please keep in mind that promptly reporting any freight damage is vital in safeguarding your right to file a claim and ensuring a swift resolution.
Should you identify any freight damage during the inspection, we urge you to notify us immediately. Our customer support team is ready to assist you through the claim filing process and provide the necessary guidance to ensure a smooth and hassle-free experience.
The advertised price for this product includes the applicable STC battery rebate, applied as a pre-discount at the time of purchase.
To be eligible for the battery rebate:
Supply-only purchases are not eligible for the battery rebate.
By proceeding with this purchase, the customer agrees to assign all eligible Small-scale Technology Certificates (STCs) associated with the battery installation to Solar Battery Supermarket (or its nominated agent).
This assignment allows the rebate to be applied as a point-of-sale discount.
If the customer does not agree to assign the STCs, the full non-rebated price of the battery system will apply.
Installation by a licensed and accredited installer is mandatory to qualify for the rebate-adjusted price.
Standard metro installation is available from $500, subject to property assessment.
Additional works (including switchboard upgrades, long cable runs, or non-standard installations) may incur extra charges and will be quoted and approved prior to installation.
To assess eligibility and proceed with installation, the customer may be required to provide:
Failure to provide required information may delay installation or affect rebate eligibility.
This rebate offer does not limit your rights under Australian Consumer Law.