securing your power and your future

Comprehensive Power – Large Off-Grid Solar Systems

The Comprehensive System is adaptable to the largest energy requirements, with no compromise on lifestyle. It is a perfect off-grid power system for large properties, farms, stations, accommodation, small housing developments and businesses; especially if multiple buildings require power.

Tailored for your requirements, the large Comprehensive System uses advanced AC-coupled technology to offer a high level of flexibility for applications such as luxury homes and micro-grids. These large solar power systems can include multiple decentralised units, centralised units or a combination of both.


Order your comprehensive off-grid power system before 30th June 2020 and receive free monitoring valued up to $500 more info






‘Comprehensive’ Large Solar Power System Features

High quality components which gives you dependable grid quality power, day & night.

User friendly, pre-programmed, automated ‘set & forget’ operation.

Easily expandable with it’s modular design and ac-coupling.

All applicable safety standards are exceeded; concealed wiring; sealed batteries. We take our safety, standards and regulations responsibilities very seriously.

The option to monitor your energy consumption and battery health locally or remotely.

Off-Grid Energy Australia’s Large Off-Grid Solar Systemcan be installed in existing infrastructure like a shed, or arrive on site as a fully-customised containerised unit. The solar panels can be mounted on your roof or on adjustable ground frames.

Each of our large solar power systems incorporates;

  • highly sophisticated inverter/charger technology
  • one or multiple solar inverters with maximum power point tracking (MPPT)
  • deep cycle sealed gel batteries

It will utilise any combination of

  • solar panels
  • wind turbines
  • micro-hydro
  • fuel generators

depending on what’s best suited to your site, needs and circumstances.

‘Comprehensive Power’ Large Off-Grid Power System Specifications


15000W+ (continuous) / 23000W+ (30mins)


48V or 120V

Fixed; Hard-wired to application

Local System Monitoring and/or Remote System Monitoring (network connection reqd.)

Valve-regulated lead acid (VRLA) or lithium-ion (LFP or NMC)


Solar panels, wind turbines, hydro & fuel generators

Our off-grid power systems have highly advanced inverter and charger technology. We will install one or more solar inverters with Maximum Power Point Tracking (MPPT) as well as batteries that are suitable for off-grid use. These components can use any combination of solar panels, wind turbines, micro-hydro or fuel generators, depending on what your family and property needs are.

‘Comprehensive Power’ Large Off-Grid Solar Power System Costing

  • These large solar systems are installed from $87,216
  • Our off-grid power systems are tailored to meet your specific needs and costs vary depending on your exact circumstances and requirements
*System prices that are shown have been provided to you as a guide only and are starting prices that assume standard installation with all necessary OEA specified infrastructure and site preparations taken account of by the customer.
Cost for large solar power systems

Chat with one of our friendly team and let them help you find the right solution on 1300 334 839

Or Request a Quote here

Further Cost Considerations:

Federal government rebates exist for eligible applicants, ranging from $1,700 – $30,000 depending on how much renewable energy is included in the final system.

Renewable Energy Fraction:
Maximising your renewable energy sources will minimise ongoing generator costs.

Equipment Placement:
For sites that do not have a suitable enclosure to house our AdaptUnit then the EnergyBox might be required at an additional cost.

Off-Grid Power System Load Profile

To accurately design your ideal off-grid solar system and provide you with a quote, we need to understand your property’s power usage.

We do this by asking you to complete an Energy Load Profile in which you list all the appliances and utilities that use power with an estimate of their usage amount. Once this is completed, we can recommend the best system design and size for you.

You can download this form here.

Off-Grid System Range


Shed Power

The Shed Power systems are our smallest hardwired standalone power options. Designed for very small loads – such as a fridge, a TV, and a few lights – these systems are ideal for the man cave or the back shed

Essential power systems

Essential Systems

Ideal for low-consumption users, the Essential System offers a perfect green solution for your holiday retreat without the ongoing commitment and cost of grid connection.

Complete System

The Complete System is the most versatile of our Standalone Power product range, capable of powering a broad range of medium to large properties.

The Off-Grid Energy Advantage

Installing battery storage isn’t as simple as installing plain solar. Our head technician has been designing off-grid systems since 2002, and our core team has been working with battery systems since 2006.
Quality Components
It’s unwise to make compromises when you are energy independent. There is a world of difference in the quality of system components, so we make sure we only source the very best.
Expert Design
Inferior off-grid systems provide frustratingly unreliable power and a costly short system life due to poor sizing, mismatched equipment, non-compliant design, and unsafe installation. Our expert technicians ensure these pitfalls are avoided.
Happy Customers
We have hundreds of happy battery storage customers across Australia. When you ask us for a customer reference, we can provide someone with an off-grid system just like yours.
We understand the responsibility of providing reliable power, and being available 24/7 to troubleshoot. We value honesty and integrity in our staff, and always strive to exceed expectations.
Endorsed, Certified & Awarded
Our fantastic, hard working team has proudly received numerous awards, industry endorsements, and certifications from respected organisations.


  • afr_fast-100
  • CEC Approved Solar Retailer
  • Aust Business Award Winner
  • Business Champion Award Winner
  • Fastest Growing Business Finalist
  • Energy Storage Council Member
  • CEC Member
  • ATA Member
  • Australian Solar Council Member
  • Alliance for Rural Electrification Member
  • EY Entrepreneur 2014 Nominee