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Batteries & Hybrid Inverters

ESY Sunhome β€” one of our core battery & inverter brands

ESY Sunhome is one of the core battery and hybrid inverter brands we install across the Northern Beaches, North Shore and Eastern Suburbs β€” a modular LiFePO4 storage system, CEC-approved and AS 4777.2 grid-connection certified, backed by a local Sydney sales and after-sales service team.

Installed ESY Sunhome HM10 battery stack in a basement car park, clearly branded with the ESY logo
Why we install ESY Sunhome

Modular storage that scales to the home

ESY Sunhome's HM-series batteries stack in 5kWh–6kWh modules, so a system can be sized precisely to a household's usage now and expanded later without replacing the inverter.

  • Modular design β€” scalable capacity from 5kWh up to 94kWh for larger homes
  • AC coupling, DC coupling, or both β€” flexible for new-build or retrofit solar
  • 10-year warranty (70% capacity retention guaranteed) backed by $20M public liability insurance
  • LiFePO4 battery chemistry, rated for 6,000+ charge cycles
  • IP66-rated enclosure β€” suited to garages, alfresco areas and outdoor installs
  • Multi-layer safety system β€” smart BMS, independent secondary protection circuit, overcurrent fuse and built-in fire suppressant (one of only two brands in the Australian market with this)
  • Virtual Power Plant (VPP) compatible
  • Premium local support β€” Sydney-based warehouse and after-sales team, with 24/7 remote monitoring and a 48-hour replacement policy
Why ESY Sunhome

A specialist battery manufacturer, not a side project

ESY Sunhome's parent company has been manufacturing lithium batteries since 2004 and became a leader in Battery Management System (BMS) technology in 2011. The ESY Sunhome brand was established in 2021 to focus specifically on home battery energy storage, expanding into the Australian market in 2022. Every HM-series system is approved for grid connection by Australia's major electricity distribution networks, including SA Power Networks, CitiPower/Powercor/United Energy, Jemena, AusNet Services, Energex/Ergon Energy and Synergy.

Installed ESY Sunhome battery unit with hybrid inverter mounted on an exterior brick wall
The Range

ESY Sunhome systems we install

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HM6 β€” Single Phase

ESY Sunhome HM6 single-phase all-in-one home battery and inverter unit

Our most-installed residential system. A 6000W hybrid inverter paired with modular LiFePO4 batteries.

  • Battery capacity: 5.12 kWh – 30.72 kWh (HM6‑05 to HM6‑30)
  • Max. efficiency (PV to grid): 97.8%
  • Certified to AS 4777.2, CEC approved
  • Warranty: 10 years
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HM10 β€” Single Phase

ESY Sunhome HM10 single-phase all-in-one home battery and inverter unit

ESY Sunhome's newest single-phase system, with a higher-output 10kW hybrid inverter for homes with heavier loads (EV charging, heat pumps, larger air conditioning).

  • Battery capacity: 5.12 kWh – 30.72 kWh (HM10‑05 to HM10‑30)
  • Rated output: 10kW / 10kVA
  • Certified to AS 4777.2, CEC approved
  • Warranty: 10 years
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HM10-H / HM15 / HM20 β€” Three Phase

ESY Sunhome HM10-H three-phase all-in-one home battery and inverter system

For larger three-phase homes and bigger loads, scaling well beyond a typical single-phase system.

  • Battery capacity: 20.99 kWh – 94.46 kWh
  • Rated output: 6.6kW – 20kW (off-grid mode)
  • Max. efficiency (PV to grid): up to 98.2%
  • Warranty: 10 years

All ESY Sunhome systems use LiFePO4 batteries rated to 6,000+ cycles, carry an IP66 ingress protection rating, and are CEC-approved for the STC rebate. Pricing is deliberately left off this page β€” we quote every job in-house, on site.

View full ESY Sunhome technical datasheets β†’

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