Most solar households export their excess power back to the grid for far less than the rate they pay to buy it back at night. Battery storage changes that — storing what your panels produce and making it available when electricity prices are highest.
The ESY Sunhome HM Series combines inverter and batteries into a single modular unit that mounts to your wall. It integrates directly with your existing solar array and manages the grid connection automatically, switching between charge, discharge, and export based on your settings or AI-optimised patterns.
Australian Solar Installations is an authorised ESY Sunhome installer serving Queensland and Northern NSW. Our CEC-accredited team handles everything from system design through to commissioning.
Inverter and batteries in a single wall-mounted stack. No separate components, no complex wiring — clean installation, minimal footprint.
Start with 5kWh and add more battery modules over time — up to 30kWh (single phase) or 90kWh (three phase) — without replacing any hardware.
The system detects a grid outage and switches to battery power in milliseconds. No manual switching, no interruption to critical appliances.
Eight models across single and three-phase. All share the same modular battery architecture, IP66 weather rating, and 10-year warranty.
Specifications for the HM5-MAX — our most-installed single-phase model. All HM Series units share the same IP66 modular architecture.
10kW hybrid inverter with integrated solar MPPT inputs and system controller. Sits at top of stack.
5.12 kWh per module. Stack 1–6 for up to 30.72 kWh — expandable any time after initial install.
Tool-free inter-module connections. Clean installation with no exposed wiring between units.
Floor-standing base with wall-bracket anchor. Suits garage, laundry, outdoor, or undercover installs.
Solar alone generates power during the day. Battery storage means you can use that power on your own terms — not the grid's.
Store cheap solar during the day. Draw from your battery at night instead of buying grid power at peak tariff rates.
Automatic switchover keeps your lights, fridge, and appliances running the moment the grid drops.
Without storage, excess solar is exported at low rates. A battery captures that energy for your own use instead.
The more you rely on your own stored energy, the less you're exposed to ongoing electricity price increases.
The ESY Sunhome App gives you complete visibility over your home's energy in real time — solar generation, battery state, grid usage, and electricity costs.
The ESY Sunhome HM Series supports Virtual Power Plant programs. When enrolled, your battery participates in coordinated grid-support events with other batteries — and your energy retailer may provide credits or payments in return.