ESY Sunhome Batteries

ESY Sunhome has been developing battery management and energy storage technology for more than 20 years, keeping pace with the rapid evolvement of battery storage technology and pricing The company began by designing battery systems for consumer electronics before expanding into large-scale renewable energy storage solutions.

Today, ESY Sunhome produces residential battery systems built around lithium-iron phosphate technology, a battery chemistry known for its safety, stability and long service life.

ESY SUNHOME develops and manufactures its battery systems from its Shenzhen headquarters, supported by a team of more than 800 engineers and technical staff. The company has expanded its operations internationally, with offices across Europe and Australia, including a presence in Sydney.

Harbour Energy has selected ESY as part of their limited range of battery storage, based on proven technology and performance.

Expandable Capacity

With ESY, you can start with a smaller system and increase storage as household needs change

Integrated Hybrid Inverter

ESY uses a built-in hybrid inverter and AC coupling, meaning it can be added seamlessly to existing solar panels and PV inverters, or new solar installations

Smart Monitoring

Monitor solar production, battery performance and household consumption through the dedicated ESY app

Lithium-Iron Phosphate Technology

ESY batteries are designed for long-term reliability and thermal stability, encased in an IP66-rated enclosure designed for Australian outdoor conditions

Why We Like ESY Sunhome

Every household uses energy differently. The modular ESY platform allows battery capacity to be tailored to suit your home, whether you’re looking to reduce evening grid usage, improve solar self-consumption, or add backup protection for essential circuits.