Adelaide Solar Battery Case Study: Why This Home Needed a 7.5kW SolaX Inverter
Adelaide Solar Battery Case Study: Why This Home Needed a 7.5kW SolaX Inverter
Project Overview
This Adelaide homeowner wanted a solar and battery system that could store enough energy for evening use and reduce the family’s reliance on the electricity grid.
The customer originally considered a 5kW hybrid inverter. However, after reviewing the home’s major appliances and normal electricity usage, we identified one important issue: the property has ducted air conditioning with a significant operating load.
To make sure the battery system could properly support the home, Energy Loop recommended a 7.5kW SolaX hybrid inverter instead.
System Installed
- 18 × LONGi Hi-MO X10 LR7-54HVH-475M solar panels
- Total solar capacity: 8.55kW
- 1 × SolaX X1-HYBRID-7.5-D hybrid inverter
- 6 × SolaX TP-HS36 battery modules
- Total nominal battery capacity: 21.6kWh
The Real Household Load
After installation, the customer recorded the SolaX app while using the ducted air conditioner at night.
With the lights and ducted air conditioning operating, the home was already drawing close to 3.5kW.
If the customer had selected a 5kW inverter, only around 1.5kW of inverter output would have remained available for the rest of the home.
Turning on a dishwasher, washing machine, dryer, electric kettle or another high-powered appliance could quickly push the household demand beyond 5kW.
Even if the battery still contained plenty of stored energy, the inverter would only be able to deliver power up to its output limit. Any additional electricity required by the home could still need to come from the grid.
This would reduce the benefit of installing such a large battery.
Why We Recommended a 7.5kW Inverter
Battery capacity and inverter output are two different things.
The battery’s capacity, measured in kilowatt-hours, tells us how much energy it can store. The inverter’s output, measured in kilowatts, determines how much power the system can supply to the home at one time.
For this property, combining a 21.6kWh battery with a 5kW inverter would have created an unnecessary restriction during periods of higher household demand.
The 7.5kW SolaX hybrid inverter gives the system more capacity to support the ducted air conditioner while other appliances are operating.
This does not mean the property will never import electricity from the grid. Grid usage still depends on total household demand, available solar generation, battery charge level and system settings. However, the 7.5kW inverter is far better matched to this customer’s home and evening electricity usage than the originally considered 5kW option.
Why We Selected LONGi Hi-MO X10
The system includes 18 LONGi Hi-MO X10 475W solar panels, providing a total solar capacity of 8.55kW.
The higher panel output helps maximise the solar capacity available from the customer’s roof space. During the day, the system can supply the home’s immediate electricity demand while directing excess solar generation into the SolaX battery for use later.
LONGi is an established solar manufacturer, making the Hi-MO X10 a strong choice for homeowners looking for a reliable, high-output residential solar panel.
Why We Selected SolaX Battery Storage
Six SolaX TP-HS36 battery modules provide this property with 21.6kWh of nominal battery storage.
The modular design allowed us to configure the system around the customer’s actual energy requirements instead of offering a standard one-size-fits-all package.
The SolaX app also allows the customer to monitor:
- Live household electricity consumption
- Solar generation
- Battery charging and discharging
- Remaining battery charge
- Electricity imported from or exported to the grid
In this case, the customer’s real App data demonstrated exactly why choosing the correct inverter size matters.
The Result
This home now has an 8.55kW LONGi solar system, 21.6kWh of SolaX battery storage and a 7.5kW SolaX hybrid inverter selected around the property’s real electricity demand.
By reviewing the home’s ducted air conditioning and normal appliance usage before finalising the system, we avoided installing a 5kW inverter that could have limited how effectively the customer used their stored battery energy.
A solar and battery system should not be designed by choosing a package first and then asking different installers for the lowest price.
The right starting point is your home: which appliances you use, how much power they require, when you use them and what you may need in the future.
That is how Energy Loop designs a solar battery system that customers can install once and use with confidence, without immediately needing to reconsider or upgrade it.
Planning a Solar Battery System in Adelaide?
Energy Loop designs residential solar and battery systems around your home, your appliances and your actual electricity usage.
Contact our Adelaide team to discuss a tailored solar and battery solution.