ESY Sunhome

ESY Sunhome: A Smarter All-in-One Home Battery Solution

At Instant Solar, we help Sydney homeowners take the next step beyond solar panels with advanced energy storage solutions like the ESY Sunhome.

This powerful all-in-one solar battery system combines a hybrid inverter and modular battery storage into one compact, modern unit—designed to make managing your home energy simple, efficient, and future-ready.

The ESY Sunhome works as the central energy hub for your property. It stores excess solar power generated during the day so you can use it at night, reduce your electricity bills, and rely less on the grid. It also provides reliable backup capability during outages, giving your household greater energy independence and peace of mind.

With scalable battery capacity and smart energy management built in, the ESY Sunhome is ideal for Sydney households planning for higher electricity prices, EV charging, or a more self-sufficient all-electric lifestyle.

Get your ESY Sunhome

We deliver quality solar and battery installations backed by trusted brands and tailored designs – making solar simple, reliable, and built to last.

Why the ESY Sunhome Is a Smart Choice for Sydney Homes

The ESY Sunhome is designed as a modern, all-in-one home energy storage system that simplifies installation while delivering strong performance, safety, and flexibility. At Instant Solar, we recommend it for Sydney households looking to maximise solar savings and prepare for rising electricity costs and future energy needs.

Here’s what makes the ESY Sunhome stand out:

All-in-one integrated design: Unlike many traditional battery setups that require separate inverter units and wall-mounted battery packs, the ESY Sunhome combines everything into one streamlined enclosure.
Expandable storage as your needs grow: The modular design allows additional battery modules to be added later, making it easy to increase storage capacity over time. This is perfect if your household energy usage increases, you add an EV charger, or you transition toward a fully electric home.
Built for Australian conditions (IP66 rated): With a high IP66 protection rating, the ESY Sunhome is engineered to handle dust, rain, and outdoor environments common across Sydney suburbs.
Fast blackout backup protection: With a rapid switchover time of approximately 20 milliseconds, the system keeps essential circuits running during outages. Your lights, fridge, internet, and key appliances stay powered when the grid goes down.

Reduce Your Battery Cost with the Federal Battery Rebate

Installing an ESY Sunhome home battery system with Instant Solar in Sydney can significantly lower your upfront investment thanks to the Federal Cheaper Home Batteries Program. This government incentive is designed to make battery storage more affordable for Australian households—and Instant Solar manages the rebate application process on your behalf so the savings are applied directly to your installation price.

Secure the highest rebate level available: Battery systems installed before 1 May 2026 are eligible for the strongest incentive level, currently estimated at around $311 per usable kWh. Installing earlier helps maximise the financial benefit available to your household.
Avoid the scheduled step-down in support: After 1 May 2026, the rebate rate is expected to reduce to roughly $252 per usable kWh, meaning later installations may receive less assistance. Acting sooner helps lock in the larger contribution while funding remains at its current level.

Smart Energy Control with the ESY Sunhome App

The ESY Sunhome is more than a battery—it’s an intelligent home energy management system designed to help Sydney households get the most value from their solar power. Installed by Instant Solar, it gives you clear insight into how your home produces, stores, and uses electricity throughout the day.

Live solar and battery performance tracking: Through the user-friendly mobile app, you can see exactly how much solar energy your system is generating, how much your home is consuming, and how much stored power remains available in your battery at any time. This visibility helps you make smarter energy decisions every day.
Smart optimisation that adapts to your lifestyle: The ESY Sunhome continuously analyses your usage patterns and expected weather conditions to manage charging and discharging automatically. This helps prioritise solar energy when it’s most valuable, reducing grid reliance and improving overall savings.
Control your system from anywhere: Whether you’re at work, travelling, or preparing for severe weather, you can adjust settings remotely through the app. You can choose how your battery operates, reserve backup capacity if outages are expected, and optimise energy use without needing to be at home.

esy sunhome battery installed by Instant Solar

Technical Specifications

Inverter output: 6 kW continuous AC power (HM6 model)

Battery module size: 5.12 kWh per module

Scalable capacity: 1–6 modules (5.12 kWh to 30.72 kWh total storage)

Solar input: Up to 8 kW PV with dual MPPT trackers

Backup switchover: Less than 20 ms transition time during outages

Battery chemistry: Lithium Iron Phosphate (LiFePO₄) for strong safety and stability

Cycle life: 6,000+ cycles at 25 °C

Usable capacity: Up to 95% depth of discharge

Weather rating: IP66 protection against dust and water

Cooling system: Passive cooling (fan-free operation)

Noise level: Ultra-quiet performance under 25 dB

Frequently Asked Questions

How much battery storage can the ESY Sunhome provide for a Sydney home?

The ESY Sunhome is modular and can be installed with between 5.12 kWh and 30.72 kWh of storage, depending on your household energy usage. Instant Solar can size the system to suit your solar production, evening consumption, and future needs such as EV charging or adding more appliances.

Can the ESY Sunhome provide backup power during blackouts?

Yes. The ESY Sunhome includes fast backup capability with switchover in under 20 milliseconds, helping keep essential circuits like lighting, refrigeration, and internet running during outages when configured for backup operation.

Is the ESY Sunhome eligible for the Federal battery rebate in Sydney?

Yes. The ESY Sunhome qualifies under the Federal Cheaper Home Batteries Program, which can significantly reduce installation costs. Instant Solar applies the rebate as an upfront discount where available, helping Sydney homeowners maximise savings when installing a battery system.

Get your ESY Sunhome Battery

We deliver quality solar and battery installations backed by trusted brands and tailored designs – making solar simple, reliable, and built to last.

Why Choose Instant Solar

We are proud to help families across New South Wales gain more control over their energy.

We focus on providing a long-term result that actually does what it says on the box.

Based in Blacktown

We operate from our main office in Blacktown and have been part of the Sydney community for over nine years. We are not a distant call centre. We are a local business with the team needed to support you for the life of your system.

Our own installation team

We do not use sub-contractors. Every system is installed by our own qualified tradespeople. This means the people who arrive at your home are the same ones responsible for the quality of the work, ensuring everything is finished to a high standard.

Long-term support

Our commitment to your home does not end when the panels are on the roof. With a 10-year workmanship warranty and a local Sydney service team, you can always reach us if you need advice or a maintenance check.