HESP 8-12kW
Three Phase High Voltage Hybrid Inverter
EU | High-Voltage Three Phase | 2 MPPTs
Lower Battery-Side Current with a 125–600V High-Voltage Battery
Higher battery voltage reduces DC current for the same power level, easing current demand on high-power battery connections, cabling and protection. The HESP 8–12kW EU high-voltage series operates with batteries across a 125–600Vdc range, with nominal battery voltages listed at 200V, 250V and 300V by model.
Longer PV Strings with 1000V Solar Input
The high-voltage HESP accepts up to 1000V PV with an 180–850V MPPT window, enabling longer strings and larger arrays. The solar input side supports up to 1000V open-circuit voltage and an MPPT operating range of 180–850Vdc, allowing longer PV strings and larger three-phase arrays on HESP80SH3, HESP100SH3 and HESP120SH3.
Up to 18kW PV Input on the HESP120SH3
The HESP120SH3 can accept 18kW of PV on a 12kW AC platform, giving the high-voltage system more solar availability for daytime loads and storage charging. The 12kW HESP120SH3 accepts up to 18kW of PV input, split as 9kW + 9kW.

Long-Term Coverage with a 10-Year Warranty
HESP 8–12kW EU adds a defined long-term service-coverage period through its published warranty. The HESP 8–12kW EU high-voltage datasheet lists a 10-year warranty, adding a clear long-term support specification to this three-phase high-voltage storage platform.
Grow System Capacity with Up to Six Inverters in Parallel
The high-voltage HESP 8–12kW supports 1–6 units in parallel, allowing capacity growth while retaining the 125–600V battery architecture. Parallel operation is specified for one to six HESP high-voltage units, allowing system capacity to grow beyond a single 8kW, 10kW or 12kW inverter.
Generator Backup with 10ms Transfer
Generator support extends backup duration during longer outages, and the 10ms transfer reduces the source-change interruption for supported loads. With a typical 10ms switching time, the HESP high-voltage series can move supported circuits quickly into backup operation when the grid is interrupted, while the generator remains available as an additional resilience source.
OVERVIEW





