One Inverter, Two AES Cabinets

CAB-106, CAB-160, and CAB-210 Configurations

When two AES Cabinets are paired with a single Solis S6-EH3P inverter, the AES Cabinet’s maximum continuous current limit is 157 A, operating within its rated 209 / 314 / 418 kWh continuous output limit. Actual discharge performance depends on the inverter model’s battery-side power capacity, as shown below.

Full Load Duration

* Curtailed by the battery.

These autonomy estimates assume continuous full-power discharge and operation within safe continuous discharge parameters. Final performance should match the site's energy demand and load profile.

System Scalability – One Inverter, Two AES Cabinets

Each Solis S6-EH3P inverter can be paired with two AES battery cabinets, doubling the usable energy per inverter while maintaining discharge power based on inverter size.

In this setup:

• 209 / 314 / 418 kWh of usable backup energy per inverter (2 × 104 kWh / 2 × 157 kWh / 2 × 209 kWh)

• Discharge power limited by the inverter model (29.9–50 kW)

• Up to ten inverters can be connected in parallel on the backup side, supporting 299-500 kW of backup power and approximately 2.09–4.18 MWh of total backup energy (10 × 209 kWh / 10 × 314 kWh / 10 × 418 kWh).

Grid-Tied (Non-Backup) Scalability

The number of inverters or batteries is unlimited for non-backup use. Each inverter runs independently, allowing systems to scale as large as needed for energy shifting, peak shaving, or other grid-interactive applications.

DC Battery Wiring – One Inverter, Two AES Cabinets

When connecting two AES battery cabinets to a single Solis S6-EH3P inverter, each cabinet is wired to a dedicated battery input terminal on the Solis inverter:

• Battery 1 connects to the inverter’s BAT1 terminals

• Battery 2 connects to the inverter’s BAT2 terminals

The inverter’s integrated dual DC/DC converters are independently fused and control each input, allowing the inverter to manage each battery cabinet separately while balancing charge and discharge as needed.

Always follow AS/NZS 3000 Wiring Rules and the local authority having jurisdiction for conductor sizing, 1,000 Vdc insulation rating, and proper torque values. Verify polarity before energising the system.

Communication – One Inverter, Two AES Cabinets

Each AES battery cabinet uses its own LYNK II Gateway for managed (closed-loop) communication with the Solis inverter in a two-to-one configuration. The inverter’s two BMS ports (BMS1 and BMS2) allow it to communicate with each battery independently.

• Use standard CAT6 or higher Ethernet cables, wired in a straight-through configuration with RJ45 plugs on both ends.

• Connect one cable from LYNK II #1 CAN port to the Solis inverter’s BMS1 port. Connect another cable to LYNK II #1’s LYNK port to the J3/J4 port on the AES Cabinet’s High Voltage Box. On most AES Cabinets, a CAT6 cable is already connected to the J3 port on the AES Cabinet’s High Voltage Box and is accessible from the LYNK II.

• Connect a third cable from LYNK II #2 CAN port to the Solis inverter’s BMS2 port. Connect a fourth cable from LYNK II #2’s LYNK port to the J3/J4 port on the AES Cabinet’s High Voltage Box.

This setup enables the inverter to independently manage and monitor both battery cabinets, receiving real-time data for state of charge, voltage, current, temperature, and charge/discharge limits from each LYNK II Gateway. Two independent LYNK II Gateways ensure precise, safe, and optimized performance across both battery units.