Off-Grid Solar Inverters, Chargers & Controllers

Looking for off-grid power but unsure which solar inverter/charger/controller is best for you?
Below you'll find lots of information on different inverter, charger and controller types, brands and models to help you understand the pro's and con's of different solar inverter devices. We can design your off-grid system with the inverters and controllers that are perfect for your needs and help you gain independence from the grid.

Off-Grid Energy Australia utilise a variety of inverter technologies from leading Australian and International suppliers to accommodate for a range of controller applications.

Which solar inverters and battery chargers are right for you?

Inverter Technologies

Battery inverters/chargers for off-grid solar systems

Battery Inverter/Charger

The inverter/charger performs multiple important functions in a battery system. Essentially the traffic conductor for electricity throughout your system. It diverts solar power from your solar inverter directly to your house loads or batteries as required, and converts stored dc energy in your batteries to ac electricity for use at night times.

Managing and protecting your batteries is the most important function of the battery inverter/charger.

Solar inverter for off-grid solar systems

Solar Inverter

The solar MPPT inverter (Maximum Power Point Tracking) converts DC electricity from solar panels into appliance friendly 240V AC electricity to either directly power loads, or to charge batteries via the separate battery inverter/charger.

MPPT Charge Controllers for off-grid solar systems

MPPT Charge Controller

MPPT (Maximum Power Point Tracking) Solar Charge Controllers maximise the production of solar power from the solar array to charge the battery bank. These solar battery regulators dc-couple the solar panels directly to the batteries for efficient and carefully managed charging and battery care.

Which inverters are right for your off-grid system?

Size & Quantity

The size and number of inverters needs to be matched to your ‘load profile’ (a detailed plan of your power usage) to ensure you have enough capacity to meet your instantaneous power requirements.

Phase type & Ratios

Different inverters will have individual design requirements depending on whether you have single or three phase power. And some may only be compatible with one particular phase type. Inverters also need to be sized to appropriate capacity ratios with your solar and batteries.

AC or DC Coupling

Off-grid system designs may include AC coupled solar, DC coupled solar, or a bit of both. This will inform the inverter type/s that are best suited to your unique system design. We always gain a full understanding of your power needs, both current and in the future, before recommending which inverters are suitable for your off-grid system design.

Your Preferences

Your preferences in relation to the country of manufacture and technology type are always taken into account. The inverters below are listed to educate you on the main points for each one, so that you have a better understanding of their benefits when we quote on your off-grid system.

Please note:

  • We do not sell individual inverters, chargers or controllers on their own. All components that we sell are part of a specifically designed off-grid system for your home or business.
  • Performance and efficiency numbers listed below are subject to meeting manufacturers operating conditions.
  • Data is correct at the time of publishing and is subject to variation.

FILTER

Device Type
Device Type
Country Of Manufacture
Country Of Manufacture
AERL CoolMax SRX charge controller

AERL CoolMax SRX

  • MPPT Charge Controller
  • Australia
  • AERL
AERL CoolMax SRX brochure
  • DC coupled solar
  • Domestic use
  • On-Board Ground Fault Detection
  • Compatible with most Battery Systems
  • Designed for Long Term Reliability
  • Up to 5 year Warranty*
Request An Off-Grid Quote
ABB/Fimer PVS 100kW solar inverter

FIMER PVS 100kW

FIMER PVS 100kW brochure
  • Commercial use
  • PowerGain Yield Optimisation
  • Great performance
  • Three Phase compatible
  • Fast system integration with Modbus
  • Up to 10 year warranty*
Request An Off-Grid Quote
ABB Fimer Trio 50 - solar inverter

Fimer Trio 50kW

Fimer Trio 50kW brochure
  • Commercial use
  • PowerGain Yield Optimisation
  • Design flexibility
  • Three Phase compatible
  • AC and DC compatible
  • Up to 10 year warranty*
Request An Off-Grid Quote
Fronius Primo Gen24-36 Plus - solar inverter

Fronius Primo Gen24

Fronius Primo Gen24 brochure
  • AC coupled solar
  • Selectronic certified
  • Domestic and commercial
  • Impressive performance
  • Individual power options from 3kW to 10kW
  • Up to 10 year warranty*
Request An Off-Grid Quote
Fronius Symo Gen24 - 3 phase solar inverter

Fronius Symo

Fronius Symo brochure
  • 3 Phase, AC coupled solar
  • Selectronic certified
  • Shade-loss avoidance algorithm
  • Domestic and commercial
  • Individual power options from 3kW to 20kW
  • Up to 10 year warranty*
Request An Off-Grid Quote
GoodWe MT Series 50-80kW solar inverter

GoodWe MT Series

GoodWe MT Series brochure
  • String-level monitoring
  • Three phase compatible
  • Commercial use
  • Up to 99% max efficiency
  • Power options from 50-80kW
  • 10 year warranty
Request An Off-Grid Quote
Selectronic SelectSun solar inverter

Selectronic SelectSun

Selectronic SelectSun brochure
  • AC coupled solar
  • Selectronic certified
  • Commercial use
  • Excellent heat tolerance
  • 20kW or 40kW models
  • Up to 10 year warranty*
Request An Off-Grid Quote
Selectronic SP Pro Series Solar Battery Inverter

Selectronic SP Pro

Selectronic SP Pro brochure
  • AC or DC coupling compatible
  • Leading performance and heat tolerance
  • Generator ‘pass through’ in fault conditions
  • Precise solar control - no frequency shifting
  • Continuous power options from 3 kW to 60 kW
  • Up to 10 year warranty*
Request An Off-Grid Quote
Sigenergy Sigenstor battery with integrated solar inverter

Signergy SigenStor

Signergy SigenStor brochure
  • Off-Grid or Grid-Connected systems
  • All-In-One, Battery + Inbuilt Inverters
  • 10 Year Warranty
  • Integrated EV DC Charger options
  • Single and 3-Phase options
  • Capacity - 5.2 kWh and 7.8 kWh options
  • Expandable to MWh+
Request An Off-Grid Quote
Sinexcel PWG2-50/100K solar battery inverter charger

Sinexcel PWG2-50/100K

Sinexcel PWG2 brochure
  • Commercial
  • 1.5GW+ Installs
  • Built-in transformer
  • Flexible and Modular
  • High efficiency and stability
  • Up to 10 year warranty*
Request An Off-Grid Quote
Tesla Powerwall 3 solar battery with integrated inverter

Tesla Powerwall 3

Tesla Powerwall 3 brochure
  • Grid-Connected systems
  • All-In-One, Battery + Inbuilt Inverters
  • 10 Year Warranty
  • Nominal Output Power - 11.04kW
  • Capacity - 13.5 kWh
  • Expandable to 54 kWh
Request An Off-Grid Quote
Victron Multiplus II - solar battery inverter charger

Victron Multiplus II

Victron Multiplus II brochure
  • DC coupling compatible
  • Domestic and small commercial
  • Frequency shifting solar control
  • Proven performance & reliability
  • 5 year Warranty
Request An Off-Grid Quote
Victron Quattro II - solar battery inverter charger

Victron Quattro II

Victron Quattro II brochure
  • DC coupling compatible
  • Domestic and small commercial
  • Frequency shifting solar control
  • Slim profile, light weight
  • 5 year Warranty
Request An Off-Grid Quote
Victron SmartSolar MPPT RS charge controller

Victron SmartSolar MPPT RS

Victron SmartSolar brochure
  • DC coupled solar
  • Domestic and small commercial
  • 100A or 200A models available
  • Low self-consumption
  • Ultra-fast MPP Tracking
  • 5 year Warranty
Request An Off-Grid Quote