45kVA Diesel Generator Hire

Reliable power from a 45kVA generator hire for larger sites, equipment and temporary setups, with fast delivery across Sydney, Melbourne, Brisbane and Adelaide. Opt Hire supplies site-ready equipment that is tested, tagged and ready to perform.

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Call 1300 678 447

45kVA Generator Specifications

Power Output	45kVA / ~36kW
Fuel Type	Diesel
Brand	Perkins / Cummins / Kubota / Trime (varies)
Phase	Single / 3-phase (model dependent)
Fuel Tank	270L
Runtime	21 hours
Noise Level	67.0dBA
Starting Type	Electric start
Dimensions	2588x1081x1708mm
Weight	1404kg

Contact our team full datasheets and specific model specifications.

Contact Team

What Does a 45kVA Generator Power?

A 45kVA generator hire solution is suited to larger-scale applications where higher, more consistent power output is required across multiple systems.

A 45kVA generator hire solution is designed for high-demand environments where larger power loads and multiple systems need to run simultaneously.

Typical uses include:

Large construction and civil works sites powering heavy machinery and multiple tools
Industrial equipment, plant operations and high-load electrical systems
Event infrastructure including staging, lighting towers, AV systems and temporary facilities
Site compounds with offices, amenities and welfare infrastructure
Agricultural operations including pumps, refrigeration and machinery in remote locations

This generator size supports significant load requirements and is ideal for projects requiring consistent, uninterrupted power across multiple circuits.

For larger requirements, see 50kVA diesel generator hire

For smaller jobs, see 40kVA diesel generator hire

Why Choose a 45kVA Diesel Generator

A diesel 45kVA generator hire is built for high-performance applications where reliability, efficiency and durability are essential.

Diesel generators at this size are commonly chosen because they offer:

• Fuel-efficient operation even under heavy load conditions

• High-capacity output for large-scale equipment and infrastructure

• Stable and consistent performance across multiple connected systems

• Durable construction designed for harsh construction and industrial environments

• Reliable power for remote, off-grid and temporary operations

Diesel generators in the 45kVA range provide the performance needed to support complex, high-demand environments.

Explore Diesel Generators

How Hiring a 45kVA Generator Works

Hiring a 45kVA generator rental from Opt Hire is simple:

What's Included

Generator supplied ready for operation
Fuel level checked prior to delivery
Optional leads and distribution boards
Ongoing support and swap-out options if required

1. Enquire

Tell us what you need to power and your site requirements.

2. Confirm

We recommend the right 45kVA generator hire setup including accessories if required.

3. Delivered

Your generator arrives tested, tagged and ready for operation.

Areas We Serve

Generator Hire Across

NSW VIC SA QLD

We provide 45kVA generator hire Sydney, Melbourne, Brisbane and Adelaide, with delivery available across metro and regional locations.

We support projects across key commercial and industrial hubs including Parramatta, Blacktown, Wetherill Park and Alexandria, with delivery available across broader New South Wales.

We service metro and major project zones such as Thomastown, Epping, Tullamarine and Dandenong, with coverage extending across Victoria.

We supply power solutions to high-demand areas including Eagle Farm, Logan, Ipswich and Northgate, along with regional Queensland locations.

We cover industrial and project-focused areas such as Wingfield, Regency Park, Lonsdale and Gepps Cross, with service available across South Australia.

Get A Quote

Call 1300 678 447

Testimonials

OPT HIRE has been an invaluable partner to our project at Sunbury Road, Victoria. Their sustainable portable building solutions not only met our specific needs but also aligned perfectly with our commitment to reducing our carbon footprint.

Daniel, Construction Manager

I sincerely commend OPT HIRE for their outstanding support throughout the Lathams Road Project. The team’s commitment to supporting the project was invaluable. Their sustainable asset offering of hybrid power and lighting solutions not only aligned with our environmental goals but also significantly reduced our carbon footprint.

Ben, Project Director

Projects We've Powered

Keeping a Close Eye on Queensland Construction Sites

Opt Hire has supported a number of clients in Queensland with innovative site security solutions using sustainable CCTV technology to minimise theft and reduce operational downtime.

Revolutionising Power Solutions: The Instagrid Advantage

Unsure of the benefits associated with using Instagrid’s lithium-ion batteries as opposed to traditional diesel generators to power equipment on construction or industrial worksites? Here’s two real-world examples illustrating the advantages.

Winslow Reaps the Rewards of Battery-Powered Compaction

Since 1985, Winslow Infrastructure, a subsidiary of Winslow Group, has been responsible for the ongoing management of drainage works at the RBR Project in Truganina.

Lighting the Way for Maca Civil Staff

A competitive Tier 2 company working on the North East Link Project, MACA Civil is well-known throughout the civil infrastructure sector for partnering with Tier 1 companies on large-scale projects valued over $100M.

ALL CASE STUDIES

Generator Faq's

What does a 45kVA generator power?

A 45kVA generator can power large construction sites, heavy machinery, site compounds, event infrastructure and multiple high-demand systems running at the same time. It is commonly used where multiple work zones, equipment loads and facilities need stable power from a single generator.

How long will a 45kVA diesel generator run on a full tank?

A 45kVA diesel generator is designed for extended operation across full workdays and demanding site conditions, making it suitable for continuous power across multiple systems. Runtime depends on load and fuel tank capacity.

How much does it cost to hire a 45kVA generator?

The 45kVA generator hire cost depends on hire duration, delivery, fuel usage and any additional equipment such as distribution boards. These generators are typically used for larger, high-demand sites requiring reliable power across multiple circuits and systems.

Is a 45kVA generator single or 3-phase?

Most 45kVA diesel generators are available in both single and 3-phase configurations, with 3-phase commonly used for industrial equipment, construction sites and applications with multiple simultaneous loads.

Can I hire a 45kVA generator long-term?

Yes, 45kVA generator hire is commonly used for medium- to long-term construction, civil and industrial projects, particularly where consistent, high-capacity power is required across the duration of the job.

Get Reliable 45kVa Power on site

Need a dependable 45kVA diesel generator?

Talk to Opt Hire for practical advice, fast quotes and site-ready delivery.

Get a Quote for 45kVA Generator Hire here:
Click Here

Call 1300 678 447 to Speak with Our Team

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