Australian owned and operated. Locally stocked, delivered Australia wide.
Cheaper Home Battery Rebates are still available. Prices shown are BEFORE rebates and do not include installation.
Free shipping on most orders over $50
Call us 1300 763 469 or email: products@buzz.energy
Australian owned and operated. Locally stocked, delivered Australia wide.
Cheaper Home Battery Rebates are still available. Prices shown are BEFORE rebates and do not include installation.
Free shipping on most orders over $50
Call us 1300 763 469 or email: products@buzz.energy
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Deye AI-W5.1 All-in-One Single Phase Low Voltage Residential Energy Storage System - CEC approved

by Deye
$4,058.00

Customers please Note:

Shipping is free on most orders within Australia over $50, however some heavy or bulky items may require specialised freight at additional cost. While we aim to keep shipping free wherever possible, regional and remote areas may attract additional charges depending on location and freight requirements.

For tailored quotes or to confirm shipping costs, please get in touch.
For more details on shipping and delivery, please click here.
For information on returns, cancellations and refunds, please view our cancellation policy.

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The Deye Spring AI Series All-in-One Single Phase Residential ESS combines a single phase hybrid inverter and a lithium iron phosphate (LiFePO₄) battery in a single compact unit.

Designed for homes on a single phase supply, which is most Australian houses, it helps manage solar energy, store excess power and provide backup during outages. Choose a 5kW to 10kW single phase inverter, with stackable battery capacity from 5.12 kWh to 30.72 kWh in one system and further expansion available when multiple units are connected.

With an IP65-rated enclosure, this single phase system suits indoor or outdoor installation. Monitoring and control are available through the app, PC or built-in display, making it easy to view energy use and battery status. Fast backup switching and smart energy management make it a practical option for everyday single phase homes. If your property is on three phase power, choose the three phase version of this system instead.

Clean Energy Council (CEC) Approved: What's This?

Purchasing this entitles you to the Cheaper Home Batteries Program. See How Much You Can Save Here

Please note: This is a heavy item. Free shipping applies to the nearest freight depot or delivery points with unloading facilities. Tailgate fees may apply otherwise. Contact us for more details.

 

Main Features

All-in-one design – Combines the inverter and battery in a single unit for a tidy installation and simpler setup.

Scalable battery capacity – Start with one 5.12 kWh module and expand up to 30.72 kWh in a single stack, with additional expansion options available.

Indoor and outdoor use – The IP65 enclosure helps protect the system from dust and weather when installed in suitable locations.

Backup power support – Provides fast switchover during grid interruptions to help keep essential household circuits running.

Simple monitoring – Check performance, battery level, and settings through the app, PC software, or the integrated display.

Long-life battery chemistry – Uses LiFePO₄ cells with a rated cycle life of 6,000+ cycles and a 10-year warranty, subject to Deye warranty terms.

Quick Specs - Inverter

  • Output options: 3.6 kW, 5 kW, 6 kW, 7 kW, 7.6 kW, 8 kW, 10 kW (single-phase)
  • Grid support: Single-phase
  • Maximum efficiency: 97.6%
  • Backup switching time: Approximately 4 ms
  • Protection rating: IP65 after stacking
  • Monitoring: App, PC, and LCD display
  • Warranty: 10 years

Quick Specs - Battery 

  • Battery chemistry: Lithium Iron Phosphate (LiFePO₄)
  • Nominal voltage: 51.2 V
  • Module capacity: 5.12 kWh
  • Single-stack capacity: 5.12 kWh to 30.72 kWh (1–6 modules)
  • Parallel expansion: Up to 36 modules, depending on system configuration
  • Cycle life: 6,000+ cycles (rated)
  • Operating temperature: -20°C to 55°C (charge/discharge conditions apply)
  • Warranty: 10 years

About The Brand

 

Deye AI-W5.1 All-in-One Low Voltage Single Phase Residential ESS MANUAL

Deye AI-W5.1-B-ESS All-in-One Series | Installation Guide

 

Deye AI-W5.1-B-ESS All-in-One Series | Installation Guide - Commissioning

 


Need more than 30 kWh?

Each system stacks up to six battery modules (30.7 kWh) on a single inverter. If you need more storage than that, extra capacity is available by adding a second battery tower with addition of a PDU3-B Base kit and additional modules. Larger multi-tower systems are configured to suit your site, so get in touch for a tailored quote.

Interested in starting your solar journey, but need some help in deciding what is the best system for your needs, free and without obligation? 

Start by CLICKING HERE
We'll be glad to assist you, in achieving Energy Independence... Your Way. 


Yep, we know... there are lots of options when buying products online.

We also believe in providing you with only the highest quality products, combined with exceptional customer service.

How You Win:

  • Free shipping Australia wide on most orders
  • Most competitive prices available
  • Pre and after sales Technical Support
  • 30 Day Easy Returns Policy 

Important Disclaimer: Installation of Hardwired Electrical Products in Australia

Please read the following information, including the disclaimer at the bottom of this page;
by purchasing from Buzz Energy Systems, you understand and acknowledge these terms.
 

When it comes to the installation of hardwired electrical products in Australia, it is important to be aware of the regulations and guidelines in place to ensure safety and compliance.
As per the Electrical Safety Act, installations operating at ELV (Extra Low Voltage) levels of 120 VDC and below can be installed by individuals with the necessary knowledge and skills.

However, it is crucial to note that installations operating above ELV levels require the expertise of licensed electricians and experienced installers. Products falling under this category are not suitable for DIY (Do-It-Yourself) installation and must be handled by professionals. Attempting to install such products without the proper qualifications can not only compromise performance but also invalidate any manufacturer's warranties. 

At Buzz Energy Systems, we recognise the importance of reliable and efficient installations that prioritise safety, performance and warranty compliance. Our team consists of qualified tradespeople and specialists who are equipped with the expertise required to handle complex electrical installations.

For installations that operate above ELV levels, we strongly advise against DIY installation. Instead, we recommend seeking professional assistance from licensed electricians and experienced installers to ensure the proper installation and optimal performance of such products.

When it comes to installing hardwired electrical products above ELV levels, rest assured that Buzz Energy Systems can provide the necessary qualified tradespeople and specialists. Our professional installation services guarantee compliance with regulations, the preservation of manufacturers warranties and most importantly, your safety.

Do not compromise on the installation of your hardwired electrical products. Trust Buzz Energy Systems for a professional and hassle-free experience.
Contact us today for advice or to schedule your installation with our qualified team.

Legal Indemnity Disclaimer

By engaging with Buzz Energy Systems, purchasing and utilising our products and services, you acknowledge and agree to the following indemnity disclaimer. This disclaimer covers any potential claims for death, injury, property damage, financial loss, or warranty claims:

  1. Assumption of Responsibility: Buzz Energy Systems shall not be responsible or liable for any consequences arising from the installation, operation or use of our products or services, excluding any rights or remedies you may have under the Australian Consumer Law or other applicable legislation. You, as the user or purchaser, assume full responsibility for any potential risks, damages, or losses that may occur, including those not covered under Australian Consumer Law.

  2. Proper Installation and Use: It is your responsibility to ensure that the installation, operation, and use of our products align with relevant laws, regulations, and safety guidelines. We strongly recommend seeking the expertise of licensed professionals to handle installations above ELV levels and to ensure compliance with all applicable codes and standards.

  3. Personal Injury and Property Damage: Buzz Energy Systems shall not be held liable for any injuries, damages, or losses caused by improper installation, operation, or maintenance of our products. You agree to indemnify and hold Buzz Energy Systems harmless from any liability in relation to personal injury or property damage resulting from the use of our products or services.

  4. Financial Loss: Buzz Energy Systems shall not be liable for any financial loss, including but not limited to direct or indirect loss of profits, revenue, or savings, arising from the use or inability to use our products or services. Any costs associated with repairs, replacements, or damages incurred fall under your responsibility.

  5. Warranty Claims: Buzz Energy Systems provides manufacturer warranties on our products, subject to the terms and conditions outlined in the accompanying documentation. However, we shall not be held liable for any warranty claims resulting from improper installation, operation or maintenance of our products. Warranties may become void if our products are not installed or used in accordance with supplied instructions or if unauthorised modifications or repairs are made.

  6. Independent Advice: It is recommended that you seek independent advice, particularly legal or professional guidance, to assess the suitability of our products and services for your specific requirements.

By engaging with Buzz Energy Systems, you acknowledge and voluntarily assume all risks associated with the installation, operation, and use of our products and services. This disclaimer extends to any third parties who may be affected by the use of our products or services.

Please note: This indemnity disclaimer is intended to be a general statement of our position and should not be interpreted as a comprehensive legal contract. We recommend seeking legal advice to draft and review any specific agreements or contracts related to the use of Buzz Energy Systems' products and services.

Here you will find Faq's and information on:

Product Selection Guides and applications,
Certifications and regulatory frameworks,
Rebate eligibility

and more....

Please Click here to view. 

Description

The Deye Spring AI Series All-in-One Single Phase Residential ESS combines a single phase hybrid inverter and a lithium iron phosphate (LiFePO₄) battery in a single compact unit.

Designed for homes on a single phase supply, which is most Australian houses, it helps manage solar energy, store excess power and provide backup during outages. Choose a 5kW to 10kW single phase inverter, with stackable battery capacity from 5.12 kWh to 30.72 kWh in one system and further expansion available when multiple units are connected.

With an IP65-rated enclosure, this single phase system suits indoor or outdoor installation. Monitoring and control are available through the app, PC or built-in display, making it easy to view energy use and battery status. Fast backup switching and smart energy management make it a practical option for everyday single phase homes. If your property is on three phase power, choose the three phase version of this system instead.

Clean Energy Council (CEC) Approved: What's This?

Purchasing this entitles you to the Cheaper Home Batteries Program. See How Much You Can Save Here

Please note: This is a heavy item. Free shipping applies to the nearest freight depot or delivery points with unloading facilities. Tailgate fees may apply otherwise. Contact us for more details.

 

Main Features

All-in-one design – Combines the inverter and battery in a single unit for a tidy installation and simpler setup.

Scalable battery capacity – Start with one 5.12 kWh module and expand up to 30.72 kWh in a single stack, with additional expansion options available.

Indoor and outdoor use – The IP65 enclosure helps protect the system from dust and weather when installed in suitable locations.

Backup power support – Provides fast switchover during grid interruptions to help keep essential household circuits running.

Simple monitoring – Check performance, battery level, and settings through the app, PC software, or the integrated display.

Long-life battery chemistry – Uses LiFePO₄ cells with a rated cycle life of 6,000+ cycles and a 10-year warranty, subject to Deye warranty terms.

Quick Specs - Inverter

  • Output options: 3.6 kW, 5 kW, 6 kW, 7 kW, 7.6 kW, 8 kW, 10 kW (single-phase)
  • Grid support: Single-phase
  • Maximum efficiency: 97.6%
  • Backup switching time: Approximately 4 ms
  • Protection rating: IP65 after stacking
  • Monitoring: App, PC, and LCD display
  • Warranty: 10 years

Quick Specs - Battery 

  • Battery chemistry: Lithium Iron Phosphate (LiFePO₄)
  • Nominal voltage: 51.2 V
  • Module capacity: 5.12 kWh
  • Single-stack capacity: 5.12 kWh to 30.72 kWh (1–6 modules)
  • Parallel expansion: Up to 36 modules, depending on system configuration
  • Cycle life: 6,000+ cycles (rated)
  • Operating temperature: -20°C to 55°C (charge/discharge conditions apply)
  • Warranty: 10 years

About The Brand

 

Manual

Deye AI-W5.1 All-in-One Low Voltage Single Phase Residential ESS MANUAL

Deye AI-W5.1-B-ESS All-in-One Series | Installation Guide

 

Deye AI-W5.1-B-ESS All-in-One Series | Installation Guide - Commissioning

 


Need more than 30 kWh?

Each system stacks up to six battery modules (30.7 kWh) on a single inverter. If you need more storage than that, extra capacity is available by adding a second battery tower with addition of a PDU3-B Base kit and additional modules. Larger multi-tower systems are configured to suit your site, so get in touch for a tailored quote.

Find my kit

Interested in starting your solar journey, but need some help in deciding what is the best system for your needs, free and without obligation? 

Start by CLICKING HERE
We'll be glad to assist you, in achieving Energy Independence... Your Way. 


Why Buy from Buzz?

Yep, we know... there are lots of options when buying products online.

We also believe in providing you with only the highest quality products, combined with exceptional customer service.

How You Win:

  • Free shipping Australia wide on most orders
  • Most competitive prices available
  • Pre and after sales Technical Support
  • 30 Day Easy Returns Policy 

Disclaimer

Important Disclaimer: Installation of Hardwired Electrical Products in Australia

Please read the following information, including the disclaimer at the bottom of this page;
by purchasing from Buzz Energy Systems, you understand and acknowledge these terms.
 

When it comes to the installation of hardwired electrical products in Australia, it is important to be aware of the regulations and guidelines in place to ensure safety and compliance.
As per the Electrical Safety Act, installations operating at ELV (Extra Low Voltage) levels of 120 VDC and below can be installed by individuals with the necessary knowledge and skills.

However, it is crucial to note that installations operating above ELV levels require the expertise of licensed electricians and experienced installers. Products falling under this category are not suitable for DIY (Do-It-Yourself) installation and must be handled by professionals. Attempting to install such products without the proper qualifications can not only compromise performance but also invalidate any manufacturer's warranties. 

At Buzz Energy Systems, we recognise the importance of reliable and efficient installations that prioritise safety, performance and warranty compliance. Our team consists of qualified tradespeople and specialists who are equipped with the expertise required to handle complex electrical installations.

For installations that operate above ELV levels, we strongly advise against DIY installation. Instead, we recommend seeking professional assistance from licensed electricians and experienced installers to ensure the proper installation and optimal performance of such products.

When it comes to installing hardwired electrical products above ELV levels, rest assured that Buzz Energy Systems can provide the necessary qualified tradespeople and specialists. Our professional installation services guarantee compliance with regulations, the preservation of manufacturers warranties and most importantly, your safety.

Do not compromise on the installation of your hardwired electrical products. Trust Buzz Energy Systems for a professional and hassle-free experience.
Contact us today for advice or to schedule your installation with our qualified team.

Legal Indemnity Disclaimer

By engaging with Buzz Energy Systems, purchasing and utilising our products and services, you acknowledge and agree to the following indemnity disclaimer. This disclaimer covers any potential claims for death, injury, property damage, financial loss, or warranty claims:

  1. Assumption of Responsibility: Buzz Energy Systems shall not be responsible or liable for any consequences arising from the installation, operation or use of our products or services, excluding any rights or remedies you may have under the Australian Consumer Law or other applicable legislation. You, as the user or purchaser, assume full responsibility for any potential risks, damages, or losses that may occur, including those not covered under Australian Consumer Law.

  2. Proper Installation and Use: It is your responsibility to ensure that the installation, operation, and use of our products align with relevant laws, regulations, and safety guidelines. We strongly recommend seeking the expertise of licensed professionals to handle installations above ELV levels and to ensure compliance with all applicable codes and standards.

  3. Personal Injury and Property Damage: Buzz Energy Systems shall not be held liable for any injuries, damages, or losses caused by improper installation, operation, or maintenance of our products. You agree to indemnify and hold Buzz Energy Systems harmless from any liability in relation to personal injury or property damage resulting from the use of our products or services.

  4. Financial Loss: Buzz Energy Systems shall not be liable for any financial loss, including but not limited to direct or indirect loss of profits, revenue, or savings, arising from the use or inability to use our products or services. Any costs associated with repairs, replacements, or damages incurred fall under your responsibility.

  5. Warranty Claims: Buzz Energy Systems provides manufacturer warranties on our products, subject to the terms and conditions outlined in the accompanying documentation. However, we shall not be held liable for any warranty claims resulting from improper installation, operation or maintenance of our products. Warranties may become void if our products are not installed or used in accordance with supplied instructions or if unauthorised modifications or repairs are made.

  6. Independent Advice: It is recommended that you seek independent advice, particularly legal or professional guidance, to assess the suitability of our products and services for your specific requirements.

By engaging with Buzz Energy Systems, you acknowledge and voluntarily assume all risks associated with the installation, operation, and use of our products and services. This disclaimer extends to any third parties who may be affected by the use of our products or services.

Please note: This indemnity disclaimer is intended to be a general statement of our position and should not be interpreted as a comprehensive legal contract. We recommend seeking legal advice to draft and review any specific agreements or contracts related to the use of Buzz Energy Systems' products and services.

FAQ's and Guides

Here you will find Faq's and information on:

Product Selection Guides and applications,
Certifications and regulatory frameworks,
Rebate eligibility

and more....

Please Click here to view.