Planning an Off Grid Solar System in Queensland
If you’re planning an off grid solar system in Queensland, choosing the right inverter charger is one of the most critical decisions you’ll make. Your inverter is the heart of your off grid power system, converting DC power from your solar batteries into clean AC electricity for your appliances, while managing charging from solar, generator, and even grid backup if you have it.
For many off grid homeowners and solar installers, the Victron MultiPlus 48 V 5 kW inverter charger is the gold standard for performance, scalability, and reliability. At Stand Alone Power Systems, we have been providing this inverter as an option to our customers for years. We have also installed many of these in parts of Queensland, and they have proven to be reliable. In this guide, we’ll explore why it’s such a strong choice for Queensland conditions, its key features, and how to integrate it into a robust off grid system.
Off Grid Solar in Queensland Why Reliability Matters
Queensland is one of the best states in Australia for solar energy, with long sunny days and a high solar yield. But when you live off the grid, your system must be sized to handle
- 100% of your annual energy needs
- Low solar production periods during the wet season or winter
- Peak loads like water pumps, air conditioners, welders, and kitchen appliances
This means you need
- A large enough solar array to generate power year round
- A reliable inverter charger to manage loads and battery charging
- A battery bank sized for multiple days of autonomy
- A generator backup for cloudy weeks or emergency use
This is where the Victron MultiPlus 48 V 5 kW really stands out. We are offering this inverter as an option as a medium quality unit, which offers great value compared to a premium unit that is more than twice its price.
Victron MultiPlus 48 V 5 kW Overview
The Victron MultiPlus 48 5000 70 100 is a 5 kVA inverter charger designed specifically for off grid and backup applications. Its standout features include
- Pure sine wave inverter safe for sensitive electronics
- 70 A smart charger programmable adaptive battery charging
- Automatic transfer switch seamless changeover from inverter to generator power
- PowerAssist technology boosts generator power during peak demand
- Parallel and three phase operation scale up to 30 kVA or add three phase power
- Remote monitoring free Victron VRM portal access from anywhere
Advantages of the Victron MultiPlus for Off Grid Applications
1 Plenty of Power for Real World Loads
A 5 kVA inverter provides more than enough capacity for most off grid homes, cabins, or farms in Queensland. It easily powers
- Household appliances like fridges, washing machines, ovens
- Pumps, air conditioning, and other inductive loads
- Power tools and small welders
- Multiple appliances running simultaneously
Its short term peak power capability means it can start heavy loads like compressors or pumps without tripping out.
2 Future Proof and Scalable
One of the biggest advantages of choosing Victron is scalability. You can
- Run up to six units in parallel for 30 kVA total capacity
- Configure three phase setups for workshops, dairies, or large properties
This means you can start with a single MultiPlus 48 V 5 kW and add more units later as your energy needs grow. We have successfully integrated multiple Victron MultiPlus units to combine up to 10 kW of power. They work by using the master inverter as the primary source of power and starting up the slave inverter when the power load increases more than 5 kVA.
3 Efficient Generator Integration
For most off grid systems, a generator is still an essential backup. The MultiPlus makes generator use smarter and cheaper
- Automatically starts and stops the generator when needed
- Uses PowerAssist to supplement generator output with battery power during high demand
- Allows you to use a smaller fuel efficient generator without oversizing
This saves on fuel costs and reduces wear and tear on the generator.
4 Flexible Battery Options
The MultiPlus works with all common battery chemistries, including
- Lithium LiFePO4 the most efficient and longest lasting. We have installed these with Pylontech batteries and they appear to be working well
- Lead acid AGM, gel, flooded still widely used. We have installed many of these units when lead acid was the common choice
- Advanced modular battery systems with CAN bus communication
Its adaptive charge algorithm helps maximise battery life, a big benefit in Queensland’s hot climate where battery care is critical.
5 Remote Monitoring for Peace of Mind
Thanks to the Victron VRM portal, you can
- Check battery state of charge
- See solar production and power usage history
- Monitor generator run hours
- Troubleshoot issues without leaving home
This is especially valuable for rural Queensland properties where a service call might mean hours of driving. We generally supply the Victron Connect App with our off grid systems, which is installed on your phone, so the system status can be monitored. Although our systems all have remote monitoring as an option, we generally only offer it at your request as we respect your privacy.
6 Proven Reliability in Queensland Conditions
Queensland’s weather can be tough. High temperatures, dust, and occasional cyclones mean your inverter needs to be rugged. Victron equipment has a global reputation for reliability in extreme conditions and is widely used in off grid homes, remote communities, and even marine and mobile power systems.
Example Off Grid System Design with a MultiPlus
A typical Queensland off grid solar setup with a Victron MultiPlus 48 5000 might include
- 5 kW to 10 kW solar array sized for your daily energy usage
- 15 to 50 kWh lithium battery bank for 2 to 5 days of storage
- Auto start generator backup during cloudy weeks
- Cerbo GX and GX Touch for system control
- Victron MPPT charge controllers for solar charging
This combination delivers reliable power all year round and is easy to monitor and maintain.
Why Choose Victron for Your Queensland Off Grid System
There are plenty of inverter chargers on the market, but Victron is trusted worldwide because it offers
- Modularity and scalability grow with your energy needs
- Industry leading monitoring tools free user friendly VRM portal
- Proven reliability designed for harsh conditions
- Excellent support network parts, service, and documentation easily available in Australia
When you’re investing in an off grid solar system, you want a solution that works first time every time, and Victron consistently delivers that peace of mind.
Talk to a Queensland Off Grid Solar Specialist
If you’re ready to design your off grid power system, we can help. At Standalone Power, we have been designing and installing off grid solar systems across Queensland for almost two decades, using proven components like the Victron MultiPlus 48 V 5 kW.
We’ll work with you to
- Size your system correctly for your loads
- Recommend the right battery bank and solar array
- Design in generator backup for peace of mind
- Provide remote monitoring so you can see exactly what your system is doing
Contact us today to discuss your off grid power requirements and get a solution that will give you reliable affordable power for years to come.