29.9-50kW | Three-phase High Voltage Commercial Hybrid Inverter
The Solis S6-EH3P(29.9-50)K-H-AU is part of Solis’s Solarator Series, a range of three-phase hybrid inverters built for high-voltage batteries. This model is designed for commercial energy storage and comes in four ratings from 29.9kW to 50kW. It works on-grid and off-grid, supports peak shaving and can connect two independent battery banks. But is it the right fit for your business?
Key features of the Solis S6-EH3P(29.9-50)K-H-AU Hybrid Inverter
- Up to 4 MPPTs: Up to four independent MPPTs, with up to 20A per string, suit large rooftops with multiple orientations and the latest high-power solar panels.
- 200% PV input capacity: You can connect up to twice the inverter’s rated power in solar panels, maximising solar generation.
- Dual independent battery ports: Two battery inputs, each controlled separately, deliver combined charge and discharge currents of up to 140A.
- 160% overload capacity: The backup port can handle short power surges when heavy equipment starts.
- Seamless backup switching: It switches from grid to backup power in under 10ms, keeping operations running during outages.
- 100% unbalanced three-phase output: Each phase can supply completely different loads.
- Peak shaving control: It can limit peak grid demand in both self-use and generator modes, helping reduce demand charges.
- Generator support: Works with generators from 10kVA to 50kVA.
- AI-powered tariff management: It automatically charges and discharges the battery based on time-of-use tariffs.
- VPP and frequency services ready: Compatible with third-party VPP platforms and frequency service providers for additional income.
- Scalable design: Parallel connections and AC coupling make it easy to expand system capacity.
- 7-inch LCD screen and Bluetooth app: A large display and app-based setup make commissioning and local monitoring simple.
- IP66 rated: Built for outdoor installation in harsh Australian conditions.
Specifications of the Solis S6-EH3P(29.9-50)K-H-AU Hybrid Inverter
- Model options: 29.9K, 30K, 40K and 50K
- Rated output power: 29.9kW to 50kW
- Recommended maximum PV array size: 59.8kW to 100kW (depending on model)
- Maximum input voltage: 1000V
- Start-up voltage: 180V
- MPPT voltage range: 150–850V
- MPPTs / input strings: 3 / 6 (29.9K) or 4 / 8 (30K–50K)
- Maximum input current: 40A per MPPT
- Battery type: Lithium-ion
- Battery voltage range: 150–800V
- Battery ports: 2
- Maximum charge/discharge current: 70A per port (140A combined)
- Maximum charge/discharge power: 32.1kW to 55kW (depending on model)
- Backup output: Up to 50kW, 160% for 2 seconds
- Backup switchover time: Under 10ms
- Maximum AC passthrough current: 86.4A to 144.4A (depending on model)
- Peak efficiency: 97.8% (EU efficiency 97.4%)
- Operating temperature: -25°C to +60°C
- Ingress protection: IP66
- Dimensions: 530 x 880 x 290 mm
- Weight: 73 kg
- Communication: CAN, RS485 and Ethernet as standard; optional Wi-Fi, cellular and LAN
- Certifications: AS/NZS 4777.2:2020, IEC 62109-1/-2
Solis S6-EH3P(29.9-50)K-H-AU Hybrid Inverter warranty
Solis inverters typically come with a 5-year standard warranty, extendable to 10 years. Confirm the exact warranty terms with an authorised Solis distributor or retailer in Australia, as they may vary depending on the purchase agreement.
Applications for the Solis S6-EH3P(29.9-50)K-H-AU Hybrid Inverter
The Solis S6-EH3P(29.9-50)K-H-AU is well-suited for:
- Commercial buildings: Ideal for offices, retail centres, warehouses and factories with large rooftops and high daytime energy use.
- Agricultural operations: Suits farms, dairies and cold storage facilities that run pumps, refrigeration and other heavy equipment.
- Remote and fringe-of-grid sites: A strong option for businesses in areas with weak or unreliable grid supply.
Pros of the Solis S6-EH3P(29.9-50)K-H-AU Hybrid Inverter
- Highly efficient battery storage: 98.5% PV-to-battery charging and 97.5% battery-to-AC efficiency keep energy losses low.
- Broad battery compatibility: A wide 150–800V battery range works with mainstream lithium batteries, 100–280Ah battery modules and Solis’s own commercial battery solution.
- High grid passthrough: Up to 144.4A of grid power can pass through the inverter to connected loads, so large sites aren’t limited by the inverter’s own output.
- Multi-source energy port: A flexible SMARTLOAD/GEN/INV port can connect a grid-tied inverter, diesel generator or wind turbine, and it also supports smart load prioritising for critical equipment.
- Clean backup power: Very low voltage distortion (THDv < 2%) provides stable power for sensitive equipment during outages.
- Robust protection: Type II surge protection on both the DC and AC sides, short-circuit protection, an integrated DC switch and active anti-islanding keep the system and site safe.
Cons of the Solis S6-EH3P(29.9-50)K-H-AU Hybrid Inverter
- Very heavy: At 73 kg and 880 mm tall, it needs lifting equipment or several people to install.
- Short overload duration: Its 160% overload lasts only 2 seconds, which may not be enough for equipment with long start-up surges.
- Wi-Fi isn’t standard: Wi-Fi and cellular are optional extras, so sites without a wired network connection will need to add one.
- High-voltage lithium batteries only: It doesn’t support low-voltage or lead-acid batteries.
- AFCI is optional: Arc-fault protection isn’t standard on every unit, so check with your installer.
- Too large for most homes: Its size and capacity make it better suited to commercial sites than residential use.
Is the Solis S6-EH3P(29.9-50)K-H-AU Hybrid Inverter right for you?
The Solis S6-EH3P(29.9-50)K-H-AU is an excellent choice for:
- Businesses with high daytime energy use: If your operations run during the day, you can make the most of your solar and stored energy.
- Businesses that can’t afford downtime: It suits sites where power interruptions mean lost stock, production or revenue.
- Growing businesses: If you expect your energy needs to increase, the system can grow with your operations.
However, if you’re powering a large home or a small business, the smaller Solis S6-EH3P(12-20)K-H-AU may be more cost-effective. For larger commercial and industrial sites, consider the Solis S6-EH3P(80-125)K10-NV-YD-H-AU.
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