PowerPlus Energy Whispr, The True All-In-One Home Battery
Designed for the Home. Built for the Installer.
Energy Independence starts with the Whispr. PowerPlus Energy’s first residential product combines a high-efficiency hybrid inverter with premium stackable batteries in a pre-engineered system. Designed to simplify residential battery installs and deliver reliable power throughout the night.
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Whispr Series Overview
7 kW Inverter (Available in 5kW) / 13.3 kWh Storage Capacity
10-Year Warranty
CEC Approved
Rebate Eligible
VPP Ready
Whispr is Australian designed, engineered and supported, created to meet the real-world needs of both homeowners and installers.
Backup, Savings & Seamless Integration
Uninterrupted Power, Smarter Living
When outages occur from storms, network faults or planned works, through intelligent energy management the Whispr automatically provides backup power, supporting essential household loads like lighting, refrigeration and security.
Designed to reduce disruption, the Whispr helps Australian homes stay powered, comfortable and in control when reliability matters most.
New Solar Installations
Solar and System upgrades
Full Or Partial Home Back Up
Claiming Rebate Benefits
Brown & Blackout Protection
Reducing Energy Bills
All-In-One Home Battery System Ready for Installation
Ready to connect straight out of the box
In a single, integrated unit, the Whispr Series combines a high-efficiency inverter, high-voltage LFP battery modules and three independent MPPT PV inputs. removing the need for external gateways, add-ons or complex system design. Everything required is already inside the box, purpose-built to work seamlessly together.
- EPS <20ms Changeover
- No External Gateway
- 3 Independent MPPTs for PV
World Class Inverter Technology
99% Efficiency from Battery to Grid
World-class, patented inverter technology, engineered for high performance. Its unique E-CaplessTM, fanless design reduces maintenance requirements while extending operational life, delivering up to 99% efficiency from battery to grid. The result is a system that not only looks refined but performs with precision.
- No Electrolytic Capacitors
- Reduced hardware costs, lighter in weight
- Increased inverter lifespan by 30%
Energy Storage, Simplified. Purpose-built for Australians and installer workloads
Less Complexity. Less Clutter. Better Visibility.
CEC approved and Rebate Ready
Whispr meets Australia’s highest standards for safety, quality and performance, while preparing customers for future energy VPP market participation and long-term value. Learn more about the rebate.
Quick Deployment
No additional gateway required and simple app commissioning process with broad compatibility across grid-connect, solar-only and hybrid applications.
Installer-Friendly Design
Stackable architecture and built in, ready to connect isolation points enable simple wiring and fast commissioning. 1PH, 2PH and 3PH installation suitable.
3-tier App-Enabled Control
Remote access, live monitoring and Whispr performance insights. Designed to support all audiences from installers, end users and internal teams, the PowerPlus Power App gives users total system visibility.
Full System Visibility
Monitor PV generation, consumption and storage from anywhere, at any time via mobile app or desktop.
Designed for Australians by Australians
The Australian Advantage. The right choice for our future.
Located in Melbourne, Australia, PowerPlus Energy’s Australian designed, engineered and supported product range is known for their simplicity, scalability and longevity. It’s a power (and team) you can count on when it matters most.
- Engineered by Australians for local grid standards and environmental conditions.
- Back by a trusted local support team giving you pre- and post-sales assistance.
- We’re consumers too, we experience the same power challenges
Designed for homes. Built for Installers.
Fully Integrated, Complete All in One System
Discover the hardware
Explore a fully integrated system designed for simplicity and performance, combining inverter, battery and control technology into one streamlined unit for reliable, efficient home energy management.
Featured Residential Case Study
Why homeowners Carolyn & Barney Chose the Whispr
At the centre of family life for over 30 years. It’s where they raised their children, celebrated milestones and built a garden-to-table lifestyle they’re proud of. But as power outages became more frequent, sometimes lasting for days, they knew it was time for a change.
Why choose PowerPlus for Home Battery Solutions.
A trusted, local brand respected by experts, built around you.
Speak to a local team member
Putting customers first, from honest guidance to reliable support, 24/7 onshore technical support pre and post sales.
Tailor your Whispr
Every project is unique. We prioritise your goals and challenges, designing energy solutions around your needs, not just fitting a product to the project.
Quality assurance at every stage
All BESS solutions undergo rigorous testing to meet strong Australian compliance requirement and come pre-programmed to deliver high-performance energy.
Designed for homes. Built for Installers.
Whispr specs and downloads
Product Downloads & Technical Guides
Can the system be installed with current AC coupled inverters?
Yes, the Whispr Series can be installed in parallel with other AC coupled PV Inverters and make full use of their output to charge the battery. During a blackout, the AC Coupled PV Inverters must also go offline. If PV is connected directly to the Whispr then this PV is active during a blackout.
What’s the maximum solar that can be connected?
Up to 200% over run per MPPT (if the voltage and current requirements are followed) is allowed.
Can MPPTs be added to existing PV and AC coupled systems?
MPPT’s or DC coupled PV cannot be connected. The Whispr has three MPPTs built in. To Extend PV beyond what the Whispr is capable of, requires additional AC coupled PV Inverters.
What is the maximum number of PV panels per MPPT input?
This will depend on the panels chosen. it is critical to keep DC voltage below 500V, although most installers will choose to keep this a little lower.
What is the maximum power output from battery to the AC grid?
The Whispr Series can deliver up to 7000W of output power from PV or battery to the AC grid.