Reliable Solar Experts Across NZ & Australia

All-in-One LiFePO4 Battery Solar Inverter System

Model : HESS 5.5K10-EU | HESS 5.5K20-EU

The HESS Series All-in-One ESS is a next-generation residential and small-commercial energy storage solution. Designed with advanced LiFePO4 battery technology, a powerful hybrid inverter, and smart monitoring features, it delivers efficiency, safety and long-term reliability in a compact form.

All-in-One Solution

Combines hybrid inverter, LiFePO4 battery, BMS, and smart monitoring.

Capacity Options

10kWh (5.5K10-EU) & 20kWh (5.5K20-EU).

High Protection (IP65)

Built for both indoor and outdoor use.

Cloud & App Monitoring

Real-time system status and remote control.

Smart BMS

Advanced protection with multiple safety layers.

Modular & Expandable

Easy installation and future capacity upgrades.

Versatile Usage

Works in on-grid, off-grid, and hybrid applications.

General Mode

PV → Load first
Surplus → Battery → Grid export
If PV is insufficient → Battery + Grid

Economic Mode

Charge from PV/grid during valley (low-tariff hours)
Discharge during peak hours to reduce bills or export for profit

Backup / UPS Mode

Normal: PV + Grid power loads, battery stores energy
Outage: Instant switch to battery + PV for critical loads (e.g., router, lights, appliances)

Battery Type: LiFePO4

Capacity: 10kWh / 20kWh

Inverter Output: 5.5kW

Cycle Life: 6000+ (80% capacity retention)

Protection: IP65

Warranty: 10 Years

Monitoring: Mobile App + Global Cloud

Models Available:

HESS 5.5K10-EU → 10kWh Storage

HESS 5.5K20-EU → 20kWh Storage

Why Choose the HESS All-in-One ESS?

All-in-One Convenience

Integrated inverter, battery, and BMS in a single sleek system.

Energy Independence

Store solar power and reduce reliance on the grid.

Safety Assured

Advanced LiFePO4 chemistry with built-in multi-layer protection.

Indoor & Outdoor Use

IP65 protection ensures durability in any environment.

Uninterrupted Power

Reliable UPS function for instant backup during outages.

Future-Ready

Expandable storage capacity to grow with your energy needs.

Common Questions About HESS All-in-One ESS

Find the answers here or contact us to discuss your project.

The HESS comes in 10kWh and 20kWh models.

Yes, with tariff-shifting and solar self-consumption features.

Yes, it instantly switches to battery + PV for essential loads.

It uses LiFePO4 cells with advanced BMS for maximum safety.

Yes, via cloud-based and mobile app monitoring.

Yes, it’s designed for residential and small-commercial applications.