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Off-Grid Solar
9kWh Solar Backup Battery Kit

Power your life off-grid, in every season.

Summary

Budget battery retrofit for grid-connected solar: Pylontech 9kWh lithium battery + Deye 8kW hybrid inverter, with backup circuit wired to your power board. Affordable blackout protection for essential loads.

Target Profile

Budget-conscious grid-connected homeowners, Residents seeking backup power for essential loads, Homeowners upgrading existing solar systems, Small households with low nighttime energy needs

System Information

Battery Capacity

9kWh

Pylontech lithium battery 9kWH usable capacity & easily add more at a later stage—10 years warranty

Inverter Capacity

8kW

Deye inverter 8kW inverter—10 years warranty Remote monitoring

9kWh Battery for Installed Solar

Budget solution with 9kWh battery and 8kW back up power. Integrating Batteries into Your Grid-Connected Solar System. We replace your current inverter with a new hybrid model, add batteries, and connect a backup circuit to your power board

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

Budget-conscious grid-connected homeowners, Residents seeking backup power for essential loads, Homeowners upgrading existing solar systems, Small households with low nighttime energy needs

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