How Much Does It Cost to Hire a Generator?

If you are budgeting for temporary power, this is usually the first question.

How much does it cost to hire a generator?

The honest answer is this. It depends.

Generator hire cost varies based on size, hire length, runtime, fuel type, and site requirements. A small portable unit for a one day job is priced very differently to a silent diesel generator running all week on a construction site.

In this guide, we will break down realistic price ranges, explain what affects the total cost, and help you budget properly without surprises.

Average Generator Hire Costs

Generator hire cost in Australia typically ranges from around $90 to $150 dollars per day for small portable units and $500 dollars or more per day for large industrial generators.

Generator rental cost varies depending on size and duration.

That is a wide range.

The reason is simple. Size changes everything.

A 2 to 5 kVA portable petrol generator used for small tools or a market stall is at the lower end of the pricing scale.

A 20 kVA, 60 kVA, or 100 kVA silent diesel unit supporting a construction site, backup system, or event infrastructure will cost significantly more.

As a rough guide:

Small portable generators
Often used for tools, stalls, or light events
Lower daily cost

Mid size diesel generators
Common on small commercial sites
Moderate daily cost

Large industrial generators
Used for construction, infrastructure, standby backup
Higher daily cost

These are indicative ranges only.

Final pricing depends on runtime, delivery requirements, fuel arrangements, and how long you need the equipment.

Generator Hire Cost by Size

Size is the biggest driver of generator hire cost.

The higher the kVA rating, the higher the daily rate. Larger units are more expensive to transport, consume more fuel, and are built for heavier duty use.

Here is a practical guide to typical daily pricing ranges.

*These figures are indicative only.

Actual generator hire rates depend on duration, delivery location, runtime hours, and whether additional equipment such as distribution boards or cables is required.

If you are unsure what size you need before budgeting, it is worth reviewing our guide on what size generator you need or using the power generator size calculator first.

Generator Hire Cost per Day vs Week vs Month

Duration changes everything.

The longer you hire a generator, the lower the effective daily rate usually becomes.

Daily Hire

Daily hire is best suited for short term or emergency use.

It gives maximum flexibility.
But it has the highest cost per day.

For example, a unit that costs $150 dollars per day may cost significantly less per day when hired for a week or longer.

Daily hire works well for:

• Short events
  
• Unexpected outages
  
• Urgent breakdown cover
  
• One day testing or commissioning

Weekly Hire

Weekly hire is often better value.

As a general guide, weekly pricing is commonly around three to four times the daily rate.

So instead of paying seven separate daily rates, you usually receive a discounted weekly structure.

This is ideal for:

• Small construction phases
  
• Temporary site offices
  
• Agricultural operations
  
• Short maintenance shutdowns

Monthly and Long Term Hire

Longer hire periods usually offer the best value per day.

Monthly pricing is often tailored to the application and expected runtime hours.

For extended hire, servicing schedules are planned in advance.
Support remains included.
Costs become more predictable.

If your project runs for several months, long term hire can significantly reduce the average daily cost compared to rolling daily agreements.

What Affects the Cost of Generator Hire

Size matters.

But it is not the only factor.

Several variables influence generator hire cost beyond just kVA rating.

Generator Size

Larger generators cost more to hire.

They are heavier.
They consume more fuel.
They require more logistics.

A 100 kVA unit will always cost more than a 5 kVA portable generator.

Runtime Hours

How long the generator runs each day affects servicing and fuel planning.

High hour applications may require more frequent maintenance intervals.
Long runtime can increase overall hire cost.

Fuel Type and Consumption

Diesel generators are common in commercial environments.

Fuel burn rate increases as load increases.
Higher consumption increases operating cost.

Some hire agreements include initial fuel.
Ongoing refuelling may be managed separately.

Delivery and Installation

Transport affects pricing.

Large units require trucks.
Some sites require cranes or specialised access.
Remote locations increase logistics costs.

Installation may involve cabling and distribution boards.

These factors influence the final quote.

Noise and Compliance Requirements

Certain environments have noise restrictions.

This may require silent or acoustic units.

Compliance with electrical safety standards may also require additional setup and inspection.  National safety guidance such as Safe Work Australia outlines responsibilities for managing electrical risks in the workplace.

Redundancy and Backup

Some sites require two generators operating in parallel for backup security.

This increases equipment cost but reduces downtime risk.

All of these factors shape the final generator hire price.

That is why pricing is usually provided as a tailored estimate rather than a fixed number.

Does Generator Hire Include Fuel, Delivery and Setup

This is a common question.

And the answer is, it depends on the agreement.

Most professional generator hire arrangements include more than just the machine.

Typically included

• Equipment matched to your load
• Basic setup guidance
• Scheduled servicing for long term hire
• Breakdown support

In many cases, delivery and collection are quoted separately.
For larger units, transport is a visible cost because of truck size and access requirements.

Fuel is usually treated separately.

• Some short term hires include fuel in the tank at delivery.
• Ongoing refuelling is normally charged based on consumption.

For longer term commercial setups, refuelling schedules can be arranged as part of the service structure.

Installation can also vary.

• Simple plug and play setups are straightforward.
• More complex sites may require distribution boards, changeover switches, or synchronised units.

This is why understanding your load and site layout matters before requesting pricing.

If you are new to generator hire, it helps to understand how professional hire works in practice.
You can review our generator hire explained guide for a clear overview of what is typically involved.

Is It Cheaper To Hire Or Buy A Generator

 

This question comes up quickly when reviewing generator hire cost.

Short term, hiring is almost always cheaper.

There is no large upfront capital payment.
Servicing is included.
Compliance responsibility stays with the provider.

For projects lasting weeks or a few months, buying rarely makes financial sense.

Long term is different.

If a generator is required continuously for years, ownership may become more economical over time.

However, that calculation must include:

• Servicing costs
  
• Maintenance labour
  
• Parts replacement
  
• Storage
  
• Downtime risk

Many comparisons only look at the purchase price versus the hire rate.
They forget the hidden ownership costs.

In most temporary, construction, infrastructure, and event applications, hiring remains the lower risk option. Energy Networks Australia regularly reports on the operational impact of power disruptions across commercial and industrial sectors.

If you want a full breakdown of the decision logic, read our guide on whether you should hire or buy a generator.

How To Reduce Generator Hire Costs

Hiring a generator does not mean you lose control over cost.

In many cases, simple planning reduces your generator hire cost significantly.

Here are practical ways to keep pricing under control.

Get the size right

Oversizing increases daily rates and fuel use.
Undersizing causes shutdowns and wasted time.

Before confirming hire, review what size generator you need or use the power generator size calculator to confirm your load.

Choose the right hire duration

Daily hire is the most expensive per day.
Weekly rates are usually better value.
Long term hire often provides the lowest daily cost.

If your project runs for several weeks, locking in a longer term agreement can reduce the total cost.

Plan fuel properly

Poor fuel planning increases refuelling charges and call outs.
Understanding runtime hours and load profile helps control consumption.

Confirm delivery access

Tight site access or after hours delivery can increase transport costs.
Clear access and planning reduces complications.

Get expert advice early

The earlier you assess load, runtime, and site layout, the fewer surprises you face later.
Accurate planning prevents unnecessary upsizing or duplicated equipment.

If you are unsure about sizing, runtime, or setup, you can speak directly with our team for tailored advice before confirming hire.

Small decisions during planning often create large differences in final hire cost.

Frequently Asked Questions

These are the most common pricing questions people ask when researching generator hire cost.

How much does a generator cost per day?

Daily generator hire cost varies mainly by size.

Daily generator hire cost depends primarily on kVA size and hire duration.

Small portable units may sit at the lower end of the pricing range.
Mid size silent diesel generators cost more.
Large industrial units used on construction or infrastructure sites sit at the higher end.

Daily hire is usually the highest cost per day compared to weekly or long term agreements.

If you want accurate pricing based on your load and duration, explore our generator hire solutions for a tailored quote.

How much does it cost to hire a generator for a week?

Weekly generator hire cost is typically better value than daily hire.

As a simple rule, a weekly rate may equal roughly three to four times the daily rate, depending on size and supplier structure.

The exact figure depends on generator capacity, runtime, fuel planning, and site setup.

For longer projects, reviewing available generator hire options will give you a clearer picture of structured weekly and long term pricing.

What is the cheapest generator to hire?

The cheapest generators to hire are usually small portable petrol or inverter units.

These are suitable for light tools, small events, or temporary stalls.
They are not suitable for high load commercial or industrial environments.

Choosing the cheapest unit is only safe if it meets your load requirements.

Does generator hire include fuel?

Fuel is often treated separately.

Some hires include fuel in the tank at delivery.
Ongoing fuel consumption is usually charged based on usage.

Long term commercial setups may include structured refuelling arrangements.

Is long term generator hire cheaper?

Yes, long term generator hire is typically more cost effective on a per day basis.

Monthly or extended hire agreements usually reduce the daily rate.
They may also include structured servicing intervals.

If your project runs beyond a few weeks, longer hire periods often provide better value.

Need An Accurate Generator Hire Cost?

Every project is different.

Load size changes pricing.
Duration changes pricing.
Site access changes pricing.
Fuel planning changes pricing.

If you want a clear, realistic figure based on your actual requirements, the best next step is to review our generator hire options or speak directly with our team.

You can explore available generator hire solutions to understand the range of equipment and support structures available.

If you would prefer tailored advice before committing, contact SGH to discuss your project and get guidance on sizing, duration, and setup.

Accurate planning at the start prevents cost surprises later.

When generator hire is structured properly, power becomes predictable.