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High-Power Everyday Living 12kW Dual Off-Grid Kit

Dual-inverter system delivering grid-like performance with built-in redundancy for reliable off-grid living.,
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Power your life off-grid, in every season.

Summary

12kW Sigenergy dual-inverter off-grid system for 3-4 person households. 10kW continuous capacity (similar to grid-typical 40A supply), 20kWh battery, generates 20kWh+ daily in winter. Built for modern energy use with redundancy. Installed 2-36k.

Target Profile
System Information
Battery Capacity
20 kWh (1 x 20 kWh)
Inverter Capacity
10 kW (2 x 5 kW)
Solar Array 
12 kW (1 x 12 kW)

12kW Off-Grid Solar System HIGH POWER

12kW Off-Grid Solar System HIGH POWER 12kW Off-Grid Solar System HIGH POWERThis 12kW system is ideal for a household of three to four people, providing 10 kW of power from the inverter. It is quite similar to the power supplied by grid providers, with a maximum demand of 40A, approximately 10 kW. The system can generate over 20 kWh per day on average during winter, potentially reducing or eliminating the need for generator use. The battery bank is sufficient to last about 24 hours.The advantage of this configuration is its dual-system setup operating in parallel, which ensures that in the event of a failure in one system, the other will seamlessly continue to provide power supply without interruptionSigenergy System includeSolar panels (Any brand of your choice) 12kW—25/25 years warranty.Sigenergy lithium battery 20kWH usable capacity—10 years warrantySigenergy inverter 5kW X 2 = 10kW inverter—10 years warranty.Remote monitoringPossible Extension:Batteries easy to add at a later stageSolar panels array can be extended up to 20kWDC charger for Electric vehicle can be integrated into the system.System cost $32k-$36 fully installed after rebateRecommended generator size: 10kVa or bigger

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100Up DesignedOff Grid Solar

12kW Off-Grid Solar System HIGH POWER 12kW Off-Grid Solar System HIGH POWER 12kW Off-Grid Solar System HIGH POWER This 12kW system is ideal for a household of three to four people, providing 10 kW of power from the inverter. It is quite similar to the power supplied by grid providers, with a maximum demand of […]

Systems designed for a Ballarat winter

Sized for real-world conditions

Recommendations based your property

Advice based on your family, home and the way you live

Off-grid Redundancy experience

Technical experience that goes beyond standard solar installs

100up Off Grid Solar Installed 

Regional Victorian Home Owners 100% Off Grid with properties just like yours

Solar Projects

A modern solar and battery setup with solar panels also functioning as carport cover
Target Property Profile

Energy Independence Optimision

Full Occupancy Design for Long-Term Performance
We size for maximum bedroom capacity, not current usage, so your system supports future owners, growing families, and stronger resale value.
Redundancy Where Reliability Demands It
For larger or higher-risk properties, we can design dual or triple inverter redundancy to reduce single points of failure and keep critical loads running if one unit goes down.
Worst-Case Winter Solar Sizing 
We oversize arrays for dark Ballarat winter weeks, capturing enough energy in short sun windows to recover batteries fast.
Battery Autonomy for Consecutive Low-Sun Days
Every system includes roughly two days of battery reserve, so poor weather doesn’t force lifestyle cutbacks or generator dependence.
Learn more about our Off Grid Design Principals
Target Profile

Energy Independence & Protection

100% OFF GRID
Built to handle real-world energy demand with confidence. The 12kW High Power Dual-Design Home System is designed for reliable, long-term off-grid performance
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Pricing Subject to Site Inspection, Roof & Ground SURVEY
We Desgin, Supply & Install
100up will help you plan and pick the best system to match your needs - give us a call
Access to Government Rebates
Remote Monitoring & Support
Complete System Documentation
Proven Components & Accredited Installers
Off‑grid systems designed by 100UP and installed by SAA‑accredited electricians using CEC‑approved products.
10+ Years Precision Installation

Ready to Plan your12kW Dual-Design12kW Dual-Design System?

Talk to us about your property, your usage, and your timeline.
Call us direct on 1300 489 152 or send a text to 0400 092 621 — real advice from real off-grid solar installers.
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Local Ballarat Team ●  10 years Over 120+ Installs 
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