What Is an Off-Grid Power System?

An off-grid power system, also known as a stand-alone power system or remote area power system, supplies electricity without relying on the electricity grid.

Rather than simply installing solar panels and batteries, a complete off-grid system must generate, store and manage enough energy to keep the property operating throughout the year.

A typical system combines:

Solar Generation

Produces the majority of the energy used by the property and recharges the battery system during the day.

Battery Storage

Stores energy for overnight operation, changing loads and periods when solar production is reduced.

Inverter & Power Conversion

Converts and manages power throughout the system while providing enough capacity for both normal operation and high starting loads.

Generator Backup

Provides another source of generation during extended poor weather, unusually high consumption or periods of increased demand.

Monitoring & Controls

Manages the different energy sources and provides visibility over generation, consumption, battery levels and generator operation.

The reliability of an off-grid system comes from how these components are designed to work together.

 

Off-Grid Power Starts With the Load

The first question with an off-grid system shouldn't be:

"How many solar panels do I need?"

It should be:

"What does the property need to run?"

A system needs to account for more than average daily electricity consumption.

Pumps, compressors, air conditioning, refrigeration, workshops, machinery and other equipment can create loads many times higher than their normal running consumption.

Location and seasonal solar production also matter. A system that performs comfortably through summer may operate very differently through winter or several days of poor weather.

That is why MyEnergy looks at the complete operating requirements before determining the solar, battery, inverter and generator capacity.

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Off-Grid Power for Different Applications

The right system depends heavily on what it is powering.

home off grid power system

Residential Off-Grid

Power systems for rural homes, new builds and properties where grid connection isn't practical.

commercial off grid power system

Commercial Off-Grid

Independent power for businesses, workshops, accommodation, infrastructure and remote operations.

remote station off grid power system

Agriculture

Power for farms, stations, dairies, pumping, workshops and remote agricultural infrastructure.

container off grid power system

Containerised Systems

Pre-built power systems for larger remote, commercial and industrial applications..

When Does Off-Grid Make Sense?

Off-grid power may be worth considering when:

  • Grid connection is unavailable
  • Grid extension costs are significant
  • The property relies heavily on generators
  • The site is remote
  • A new development needs its own independent power supply

The right solution comes from comparing the actual site requirements with the available grid connection options.

Complete Off-Grid Support

From initial design through to installation, upgrades and ongoing support, we manage the complete off-grid power system. Our approach is focused on making sure each part of the system works together properly, is sized for the site, and can be supported long after installation.

design and engineering

System Design

Every project starts with proper design. We assess how power will actually be used, taking into account daily consumption, peak loads, and seasonal changes. From there, we design a system that is sized for year-round performance, with a strong focus on winter operation and future expansion. Equipment is selected based on proven performance in off-grid environments, and the overall system architecture is planned to ensure everything works together properly.

 

supply and installation

Supply & Installation

We deliver systems end-to-end using our in-house team. Many systems are pre-built and tested in our workshop before being installed on site, which reduces installation time and avoids issues during commissioning. Once on site, we complete the full installation, commissioning, and documentation to ensure the system is set up correctly and ready for long-term operation.

consulting off grid systems

Off-Grid Consulting

For clients in the early stages or working through more complex projects, we provide practical advice to help guide decisions. This includes assessing whether going off-grid is the right approach, understanding system requirements and costs, and planning staged builds where needed. We also review existing or proposed systems to make sure they are correctly designed before any commitment is made.

System Upgrades MyEnergy

System Upgrades & Expansions

We also work on existing systems to improve performance or increase capacity. This can include adding battery storage, expanding solar arrays, upgrading inverter systems, or integrating a generator. Any upgrades are designed to work properly with the existing system, rather than creating limitations down the track.

Monitoring Support

Monitoring & Support

Ongoing support is a key part of off-grid power. Where monitoring is in place, we can view system performance remotely and assist if anything changes. This allows for quicker troubleshooting and ensures the system continues to operate as intended. We also provide guidance around maintenance and system operation over time.

Generator icon for integration

Generator Integration

A generator is a critical part of a reliable off-grid system. We supply and integrate water-cooled 1500rpm diesel generators that are designed to work alongside the solar and battery system. These are set up to automatically support the system when required, reducing run time while ensuring power is always available.

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Frequently Asked Questions About Off-Grid Power

What is the difference between off-grid solar and a normal solar system?

A standard solar installation generally remains connected to the electricity grid. An off-grid system needs to provide the property's electricity independently, which normally requires solar generation, battery storage, inverter equipment, system controls and another source of backup generation where required.

How big does an off-grid solar system need to be?

There is no standard system size. It depends on daily energy consumption, peak demand, location, seasonal solar production, equipment starting loads, battery requirements and how the property will be used.

Do off-grid systems need a generator?

Generators remain an important part of many off-grid systems because they provide another source of generation during extended poor weather, abnormal consumption or other operating conditions. Whether one is required and how it is sized depends on the application.

Can an off-grid system provide three-phase power?

Yes. Off-grid systems can be designed for single-phase or three-phase applications. Three-phase systems are commonly used for larger homes, agriculture, workshops, commercial facilities, pumps and industrial equipment.

Can an off-grid system run air conditioning?

Yes, provided the solar, battery and inverter system has been designed around the additional energy and peak-power requirements.

Can I expand an off-grid system later?

Often, yes. Expansion should ideally be considered during the original system design so additional solar generation, battery storage or inverter capacity can be incorporated without unnecessarily replacing existing equipment.

Is off-grid solar suitable for a farm or commercial operation?

Yes. Off-grid systems can range from relatively small installations through to substantial commercial power systems. Farms and commercial sites require more detailed assessment because motors, pumps, refrigeration, machinery, operating hours and three-phase loads can substantially affect system design.

Can MyEnergy install off-grid systems anywhere in Australia?

MyEnergy delivers off-grid and remote power projects across Australia. The approach to installation depends on project size, location, site access and the level of work required.

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Planning an Off-Grid Project?

Tell us about the property, location, what you need to power and any future plans.

We'll help determine the right next step.