Full SystemResidential

High Energy Use 20kW Family Off-Grid Kit

20kW three-phase system with independent inverter redundancy and modular storage for high-demand households and EV charging.,

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Complete 20kW off-grid solar system showing Deye inverters, Pylontech batteries, and solar panels for independent power generation

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Off-Grid Solar
High Energy Use 20kW Family Off-Grid Kit

Power your life off-grid, in every season.

Summary

20kW off-grid system for families of 5+ or smaller families with electric vehicles. Available in Sigenergy (39kWh battery) or Deye/Pylontech (22kWh battery) configurations. Triple-inverter 18kW capacity, solar expandable to 27-36kW.

Target Profile

Large Family Homes with 5+ Residents, Small Family with Electric Vehicle, High Energy Users with No Power Limitations, Property Owners Seeking Redundancy and Reliability

System Information

Recommended generator size: 15kVa or bigger

Battery Capacity

22k-39kWh

Pylontech 22kWH or Sigenergy 39kWH usable capacity— both lithium Batteries with 10 years warranty

Inverter Capacity

18 kW

3x 6kW Sigenergy or Deye inverter. Both with Remote monitoring and 10 years warranty

Solar Array

15kW

Jinko solar panels 15kW—25/25 years warranty

20kW Off grid solar systems

A 20 kW system is ideal for a family of 5 or more, or a smaller family with an electric car. Generally, there are no real limitations on power usage with this system.

Deye/Pylontech 20kW System can be extended with Batteries added at a later stage Solar panels array can be extended up to 27kW.

Sigenergy 20kW System inverter/battery unit operates independently. In the event of a failure in any unit, the others will continue to provide power without interruption. Extensions also include batteries that can be easily added at a later stage Solar panels array can be extended up to 36kW DC charger for Electric vehicle can be integrated into the 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

A 20kW off-grid solar system suits families of five or more with minimal power restrictions. Both Deye/Pylontech and Sigenergy options offer expandable batteries and solar arrays up to 27-36kW, with integrated EV charging capabilities and independent operation for uninterrupted power supply.

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

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

Large Family Homes with 5+ Residents, Small Family with Electric Vehicle, High Energy Users with No Power Limitations, Property Owners Seeking Redundancy and Reliability

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