Solis S6-EH3P K10-NV-YD-H series inverters are three-phase, high-voltage hybrid energy storage inverters for commercial (C&I) applications, available in power variants of 75 / 80 / 99.9 / 100 / 125 kW. They combine on-grid and off-grid operation, provide two independently controlled battery ports and very high charge/discharge capability, making them a strong choice for PV+ESS systems focused on self-consumption, backup power and peak shaving.

The S6-EH3P125K10-NV-YD-H inverter features 10 MPPT (each with a max current up to 42 A) and allows up to 2× PV oversizing relative to rated power, which simplifies system design with modern higher-current PV modules. On the storage side, there are 2 battery ports with a maximum current of 100 A + 100 A, and a wide voltage range enables compatibility with many battery types, including 100–314 Ah modules.

In off-grid (island) mode, the inverter provides a dedicated backup port and is designed to handle loads with high inrush currents: an overload capability of 160% for 200 ms is specified, and the backup port can be overloaded краткосрочно up to 2.0× rated power. Switching between on-grid and off-grid operation is specified at <10 ms, helping maintain continuity for critical loads.

The S6-EH3P(75–125)K10-NV-YD-H supports advanced control scenarios, including operation on a “weak” grid and with a generator (genset-hybrid), demand management, export limiting (anti-reverse flow) and dynamic reactive power compensation to improve power factor and potentially reduce reactive energy charges. It also offers utility bypass (directly supplying backup loads from the grid) and the SolisCloud platform for remote monitoring, control and diagnostics.

For larger installations, parallel operation up to 6 units is supported as standard, but the system allows connecting up to 10 inverters, reaching up to 1.25 MW (for systems above 6 units, the manufacturer recommends a Solis STS cabinet). The inverter supports both DC and AC coupling (facilitating retrofits and expansions), and the patented cooling technology is designed to support stable operation even at high temperatures.

Key product features:

• Maximum efficiency 97.2%
• Dedicated for C&I PV+ESS
• On-grid + off-grid operation
• Independent 10 MPPT, 42 A/string
• PV oversizing up to 2×
• 2 independent battery ports, 100 A + 100 A
• Battery modules 100–314 Ah
• Backup / off-grid: switching <10 ms, overload 160% / 200 ms, backup up to 2.0× rated power
• Grid functions: weak grid, genset-hybrid, anti-reverse flow, dynamic reactive power compensation, utility bypass
• Scalability: parallel operation standard up to 6 units. Up to 10 units (1.25 MW) possible
• Both DC and AC coupling
• Generator-ready operation
• Monitoring via SolisCloud