We are pleased to unveil our latest production, GridBox, a smart parallel connection hub that unlocks the full potential of home energy independence. GridBox empowers homeowners to scale the energy system effortlessly, delivering more power, more control, and more freedom than ever before.
Simple Parallel Connection, Massive Energy Expansion
GridBox is built for one core mission: seamless parallel connection. To operate, it requires a smart meter, ensuring precise monitoring and optimisation of your home’s energy flow.
With 6 Parallel Expansion Ports, GridBox can connect up to six Sunpura S2400 plug-and-play storage batteries simultaneously. When fully equipped with six S2400 units, the system delivers:
- Total AC Input/Output: 14.4 kW
- Total Capacity: 57.6 kWh
- Solar Input Capacity: 12 kW
Installation is remarkably simple. The GridBox mounts to any wall using a sturdy back bracket. Then, simply plug each Sunpura battery into a Parallel Expansion Port, no hassles (though certified installer support is recommended for full system integration).
Best of all, you don’t need to buy all batteries at once. GridBox supports single-phase and three-phase expansion, add a smaller quantity today, then scale up further as your family’s energy needs grow. Whether you’re a young couple, a growing family, or running a home business, GridBox adapts to your journey toward energy freedom.
All Connection Ports, Real-World Convenience for Every Home
GridBox is not just a junction box, it’s a smart energy gateway with multiple output options designed to match different home setups and lifestyles.
| Port | Key Feature Description | Benefit for Homeowners |
| 7kW Single-Phase Load Output | Fully charges a 60 kWh EV in ~8.5 hours | Wake up to a full battery and a lower electricity bill, ideal for overnight EV charging. |
| 11kW / 22kW Three-Phase Load Output | Up to 22 kW AC charging | High-capacity EVs charge much faster, for busy families, long trips, or multi-EV households. |
| 22kW Bidirectional Grid Power | Seamless 22kW import/export with the grid | High 22kW grid power combined with dynamic electricity pricing unlocks superior savings, automatically buy when prices are lowest, use or sell when prices peak. |
| Load Output Switch | Cut off loads while staying grid-connected | Simply turn off the load outputs when not needed, while the rest of the system stays connected to the grid. |
| 6x Parallel Expansion Ports | Flexibly expand from 1 to 6 units | Start small, grow big. No upfront over-investment. |
How It Works, Master-Slave Intelligence & Whole-Home Optimisation
Inside a 6-unit GridBox setup, one Sunpura battery acts as the Master Unit, intelligently coordinating the other five to power your home. This architecture unlocks a suite of advanced features:
Dynamic Tariff Integration
Sunpura energy storage systems support 800+ electricity providers across 20+ countries. It receives:
- 1-day ahead price forecasts
- Real-time updates every 15 minutes
This enables precise energy scheduling and storage optimisation, automatically charging your batteries when energy is cheap and discharging when prices spike. Savings add up fast.
Maximum Self-Consumption
- AC Coupled: compatible with 100% of existing inverters. Easily upgrade your legacy solar system without replacing hardware.
- Up to 12 kW solar input: power your home, charge your batteries, and even set zero feed-in mode to avoid exporting surplus energy to the grid for free.
One App, Total Freedom
The Sunpura App lets you monitor, intelligently schedule, and remotely manage your entire home energy ecosystem in real time. Every kilowatt-hour of solar energy is used more efficiently, whether you’re at home or on vacation.
Future-Ready Design
Sunpura energy storage systems is built for tomorrow’s smart home:
- Ecosystem ready: compatible with EV chargers, water heaters, Shelly meters, and more.
- Platform integration: works with EverHome, Home Assistant, and other home automation systems.
- VPP-ready: join virtual power plants to earn revenue from your stored energy.
Safe by design
- 10-year warranty, long-term peace of mind
- IP65, dust-tight and water-resistant
- Wide operating temperature, from -20°C to 55°C
- Smart BMS, over-voltage, over-current, and temperature protection
- Integrated Aerosol Fire Protection, active fire suppression
- LiFePO4 battery cells, the safest, most durable lithium chemistry
Summary
GridBox is not just another parallel box, but powerful, simple, and kind to your budget. It’s a complete energy freedom platform, delivering more power (up to 14.4 kW / 57.6 kWh), more control (dynamic tariffs, whole-home automation, zero feed-in), and more freedom (scale as you grow, future-proof design).
Yet for all its power, GridBox remains remarkably simple:
- Wall-mount with back bracket
- Plug in batteries via expansion ports
- Start small, add more later
No huge upfront financial burden. No rip-and-replace of existing inverters. Just a clear, affordable path to energy independence.
GridBox by Sunpura. Available now.
Visit www.sunpuraenergy.com or email info@sunpuraenergy.com to learn more or schedule a consultation.
