HESP 14-18kW
Single/Split Phase Low Voltage Hybrid Inverter
EU | Single Phase | 3 MPPTs
380A Battery Throughput for 18kW Single-Phase Storage
The 18kW model reaches 380A charge/discharge current, giving this 48V single-phase platform the battery throughput needed for larger storage banks and high continuous loads. The HESP48180S380-H 18kW model supports up to 380A maximum charging and discharging current on its 48V battery platform, supporting high-rate energy exchange in large single-phase storage systems.
Separate Large PV Arrays Across Three 42A MPPTs
Three independent MPPTs let a large roof or ground-mount array be split into separate electrical operating points, reducing mismatch between sections with different orientations or string conditions. Each MPPT supports up to 42A and the inputs use a 2+2+2 string arrangement, making the HESP 14–18kW EU better suited to high-current modules and multi-array layouts.
1.6x PV Oversizing for More Solar Availability
PV input up to 1.6 times rated inverter power gives the 14–18kW series more solar availability across changing irradiance while AC output remains limited by the inverter rating. Maximum PV input reaches 22.4kW, 25.6kW and 28.8kW for the 14kW, 16kW and 18kW models.
Smoother High-Current Battery Operation with Two-Level Battery Buck-Boost Topology
HESP 14–18kW EU uses a two-level Buck-Boost battery stage to reduce current ripple and electrical stress during high-current battery operation. The datasheet specifically identifies a two-level battery buck-boost topology designed to significantly reduce current ripple and extend service life.
Scale High-Power Single-Phase Storage to Nine Units
Parallel operation lets a high-power single-phase storage project start with one inverter and add capacity later without changing to a different product family. The HESP 14–18kW EU supports 1–9 units in parallel, giving large residential and light-commercial systems a clear path for staged expansion.
Three-Source Wake-Up from Grid, PV or Generator
Three independent activation sources make system recovery more flexible after deep battery discharge, shutdown or loss of one available power source. The HESP 14–18kW EU can be activated from grid, PV or generator input, reducing reliance on a single wake-up path during restart.
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