ESY Battery Sydney
Smart Home Battery Storage for Sydney Homes
Sydney homeowners are looking for smarter ways to reduce electricity bills and get more value from their solar systems. The ESY SUNHOME Battery range helps households store excess solar energy generated during the day and use it when electricity prices are highest.
Available in capacities from 5kWh to 30kWh, ESY batteries provide a scalable energy storage solution for homes across Sydney, including Western Sydney, the Hills District, Northern Beaches, Inner West, Sutherland Shire and surrounding suburbs.
Installed by Solar National, ESY battery systems are designed to help Sydney families maximise solar self-consumption, reduce grid dependence and gain greater control over rising energy costs.
Why Choose ESY Battery?
The ESY SUNHOME battery range delivers reliable energy storage for Sydney homeowners looking to reduce electricity costs, maximise solar savings, and gain greater control over their household energy usage.
High Usable Energy Capacity
The ESY SUNHOME range offers up to 95% depth of discharge, allowing homeowners to access more stored energy compared to many conventional battery systems. This means more of your solar generation is available when you need it most, helping reduce grid electricity usage throughout the evening.
Reduce Sydney Electricity Bills
Store excess solar power generated during the day and use it during peak demand periods when electricity costs are highest. By increasing solar self-consumption, Sydney households can lower their reliance on electricity retailers and improve long-term energy savings.
Weather Resistant Design
Built with an IP66-rated enclosure, the ESY battery is designed for Australian conditions. Its durable construction helps protect against dust, rain and outdoor environmental exposure, making it suitable for a wide range of installation locations.
Flexible & Expandable Storage
Choose from battery capacities ranging from 5.12kWh to 30.72kWh to suit your household energy needs. Whether you’re powering a small family home or planning for future energy requirements, the ESY SUNHOME range offers flexible storage options.
Safe & Certified Technology
The ESY SUNHOME battery system complies with recognised international safety and performance standards, including IEC 62619, ISO 13849, CEC and RCM certifications. These approvals support safe and reliable operation for Australian residential installations.
10-Year Manufacturer Warranty
Every ESY SUNHOME battery is backed by a 10-year manufacturer’s warranty, providing confidence in long-term performance and durability. Homeowners can invest in battery storage knowing their system is supported for years to come.
Technical Specifications
Specifications
ESY SUNHOME Battery Technical Specs
Battery
- Battery Type: IFpP Lithium Battery
- Available Capacities: 5.12kWh to 30.72kWh
- Usable Capacity: Up to 29.184kWh
- Nominal Voltage: 51.2V
- Voltage Range: 40.8V – 57.6V
- Depth of Discharge: 95%
- Modular Design: Expandable battery configurations
- Charging Temperature: 3°C to 55°C
- Discharging Temperature: -20°C to 58°C
- Protection Rating: IP66
Performance
- Max Continuous Charging Power: 4,864W
- Max Continuous Discharging Power: 4,864W
- Max Charging Current: 95A
- Max Discharging Current: 95A
- High Usable Energy Capacity
- Suitable for Residential Solar Storage
Safety & Compliance
- IEC 62619 Certified
- IEC/EN 62040-1 Certified
- ISO 13849 Compliant
- CEC Approved
- RCM Certified
- IEC 61000-6-1
- IEC 61000-6-3
Warranty
- Manufacturer Warranty: 10 Years
- Designed for Long-Term Residential Use
- Reliable Battery Management System
- Built for Australian Conditions
Installation
How We Install Your ESY Battery System
Solar National provides professional ESY battery installation services across Sydney. Most residential battery installations are completed within a single day.
Step 1: Free Consultation & Quote
Speak with our battery specialists to discuss your electricity usage, solar system size and energy goals. We recommend the most suitable ESY battery configuration for your home and provide a detailed quotation.
Step 2: Site Assessment & System Design
Our team reviews your switchboard, inverter compatibility and installation location. We then design a battery solution that maximises solar self-consumption and long-term savings.
Step 3: Compliance & Approvals
Solar National manages all required compliance requirements and installation documentation to ensure your battery system meets Australian standards.
Step 4: Professional Installation
Our accredited installers mount the battery system, complete all electrical connections and integrate the battery with your solar system for optimal performance.
Step 5: Testing & Commissioning
Once installed, the system undergoes comprehensive testing to ensure safe operation, correct communication and reliable energy storage performance.
Step 6: System Handover & Support
We guide you through battery monitoring, system operation and performance tracking so you can monitor your energy usage with confidence. Our support team remains available after installation, should you require assistance.
Comparison Table
Comparison
ESY Battery vs Other Home Batteries
Feature | ESY SUNHOME | Tesla Powerwall 3 | Sungrow SBR HV | Alpha ESS SMILE |
Battery Capacity Range | 5.12kWh – 30.72kWh | 13.5kWh | 9.6kWh – 25.6kWh | 10.1kWh – 30.3kWh |
Modular Design | Yes | No | Yes | Yes |
Expandable Storage | Yes | Limited | Yes | Yes |
Outdoor Installation | Yes | Yes | Yes | Yes |
IP Rating | IP66 | IP67 | IP55 | IP65 |
Depth of Discharge | 95% | 100% | 100% | 95% |
Backup Capability | Compatible with supported systems | Yes | Yes | Yes |
Suitable for Existing Solar Systems | Yes | Yes | Yes | Yes |
CEC Approved | Yes | Yes | Yes | Yes |
Warranty | 10 Years | 10 Years | 10 Years | 10 Years |
Best Suited For | Flexible residential storage | Premium whole-home backup | High-voltage solar storage | Large home energy systems |
Why Buy Your ESY Battery from Solar National?
Solar National provides professional battery installation services across Sydney and NSW. Our experienced team can assess your energy usage and recommend the right battery size to maximise your solar savings.
What You Can Expect
- Expert battery advice
- CEC-compliant installation
- Quality workmanship
- Ongoing support
- Competitive pricing
- Flexible finance options
Frequently Asked Questions
The ESY SUNHOME Battery includes a 10-year manufacturer warranty and is designed for long-term residential energy storage.
Yes. In most cases, ESY batteries can be integrated with existing solar systems, subject to compatibility requirements.
Yes. With an IP66-rated enclosure, the ESY battery is designed to withstand outdoor environmental conditions.
The ideal battery size depends on your daily electricity consumption, solar generation and future energy needs. Our team can help determine the best option for your home.
