Design backup power properly—not as a vague ‘off-grid’ promise.
A compatible SolaX hybrid inverter, battery and changeover arrangement can provide energy storage and protected backup circuits. The system must be designed around the property supply, essential loads, battery power and the exact SolaX generation.

Grid-connected storage and true off-grid operation are different.
Most domestic systems remain grid connected. During an outage, compatible equipment can isolate and energise designated circuits, but the available power and duration are limited by the inverter, battery, state of charge and connected loads.
Hybrid energy management
Compatible models coordinate PV generation, battery charging and household consumption.
Essential-load backup
Selected circuits can be designed for outage operation where the equipment and changeover arrangement support it.
System integration
Battery, Matebox or switching equipment, meters and monitoring must match the exact inverter generation.
For homes that want storage plus planned resilience.
- New SolaX hybrid solar systems
- Compatible existing systems being assessed for a battery
- Homes wanting clearly defined essential backup circuits
- Properties where neat integrated switching is practical
Mr Solar design check
- Exact inverter model, phase and firmware
- Continuous and surge power of intended backup loads
- Battery usable capacity and minimum reserve
- Earthing, neutral switching and changeover arrangement
- Generator or off-grid claims against manufacturer limits
Mr Solar will document what remains powered during an outage. We do not describe a system as ‘whole-home backup’ or ‘off-grid’ unless the design genuinely supports those operating conditions.
Size backup from the essential loads backwards.
SolaX systems can be paired with different battery capacities. We first list the circuits that must remain powered, their continuous and starting loads, and the outage duration the customer wants.
Illustrative examples
- 1 kWh supports a 100 W background load for roughly 10 hours before allowances
- A fridge, router and lighting may use far less energy than an electric oven or immersion heater
- Motor and compressor start-up can require more power than normal running
- Leaving a battery reserve improves outage readiness but reduces everyday usable energy
Figures are simple energy illustrations, not guaranteed runtime. Allow for battery reserve, conversion losses, temperature, ageing and changing household demand.
Equipment selected around the complete property.
We confirm the exact model, current manufacturer documentation, inverter compatibility, electrical design, location, monitoring and any backup arrangement before equipment is ordered.
Assess
Consumption, generation, tariff, supply and future loads.
Specify
Usable energy, battery power, inverter and compatible accessories.
Install
Protection, cabling, meters and equipment installed professionally.
Support
Commissioning, monitoring setup, documentation and aftercare.
Product information should be checked against the exact model and current manufacturer documentation at quotation. Official product information: SolaX X1 Hybrid.
Is this battery system right for your home?
Speak to Mr Solar about your electricity use, existing solar, tariff and backup requirements before choosing equipment.
