Full SystemResidential

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.,

after rebate

FROM

32k-$36 fully installed

Request a Custom Solar Spec

High-power 12kW dual-home off-grid solar system showing panels and inverter setup for two dwellings

3 Bedroom

Comfortable Family Living 3-Bedroom Off-Grid Kit

View the 3 Bedroom System

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Off-Grid Solar
12kW Off-Grid HIGH POWER

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

This 12kw Sigengery system design is one of many well suited to larger off grid homes with three to four people. It works for higher daily power use. Its reliable for full time living power without constant generator backup.

System Information

Upgrades: DC charger for Electric vehicle can be integrated into the system. Recommended generator size is 10kVa or bigger,

Battery Capacity

20kWh

Sigenergy lithium battery module 20kWH usable capacity, (expand or upgrade now or later) 10 years warranty

Inverter Capacity

10kW

2x Sigenergy 5kW inverters, 10 years warranty.

Solar Array

12kW

Solar panels Any brand of your choice 25/25 years warranty. (extended up to 20kW)

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 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 interruption

Need something slightly different? If you have a 3 bedroom property, check out our full time off grid living system page. We help our customers with off grid systems designed to suits your home, usage, location, and budget.

Modern off-grid home with rooftop solar array, battery storage and EV charger

Comfortable Family Living 3-Bedroom Off-Grid Kit

A family home runs hard. If you need a system that handles real daily demand without compromise. Not too small, Never over-engineered, this is it.

View the 3 Bedroom System

Not sure which system is right for you?

That's exactly what we're here for. Tell us about your home, your site, and how you live - we'll recommend the system that fits.

Get in touch for your off grid solar consulation

100Up DesignedOff Grid Solar

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

Off Grid Solar Specialist

See our live reviews on Google Maps

100UP Off-grid solar systems 20 Google Reviews

100up Off Grid Solar Installed

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

Solar Projects

5kw off grid solar system
12kW off grid solar Ballarat
Solar & EV Installation
10kW Off grid solar system near Ballartat VIC

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

Target Property Profile

Energy Independence Optimision

- People

OccupanCY Target

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

FROM

32k-$36 fully installed

after rebate

Request Your 12kW Dual-Design12kW Dual-Design Install Estimate

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