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Large Generators

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Power’s out again? Or maybe you just need some serious muscle for the job site. Either way, large generators are the answer. At Generators Australia, we’ve got the tough, reliable units that keep your lights on, tools running, and plans rolling—no worries, no downtime.

Large diesel generator on a construction site with open access doors showing the engine and control panel.

Best Large Generators for Standby Power and Industrial Use (3 kVA – 2200 kVA)

From small workshops to large commercial setups, having the right generator ensures uninterrupted operation. Our large generators range spans from compact 3 kVA models right up to powerhouse 2200 kVA units. Built for performance and durability, these machines are ideal for mining sites, farms, construction projects, or emergency power backup.

We’ve handpicked the best large generators trusted across Australia — all tested for reliability, fuel efficiency, and long service life. No flashy claims, just proven power that gets the job done.

Choosing the Right Sizing: Large Generator kVA Guide

Sizing matters. Too small, and you risk overloads. Too large, and you waste fuel. As a general rule, start by listing your essential appliances or tools and checking their total power draw in watts. Convert that to kVA (divide watts by 1000 and multiply by 1.25 for safety).

For instance, a home backup setup might only need a 10–20 kVA unit, while a commercial operation could require 200 kVA or more. If you’re unsure, our team can guide you through the large generator kVA options that suit your needs.

Large Generators for Home Backup: What to Consider

Large generators for home use are becoming more popular across Australia — especially in rural or off-grid areas. When choosing one, think about fuel type, noise levels, and whether you need automatic start-up during outages.

Diesel models are generally more fuel-efficient and durable for long-term use, while petrol units are great for occasional backup. For peace of mind, look for safety features like overload protection and automatic voltage regulation.

Industrial diesel generator installed outdoors on a concrete base with digital control panel and exhaust pipe.

Large Generators Prices and Where to Find Units For Sale

If you’re comparing large generators prices, it helps to understand what you’re paying for. Size, fuel type, and brand all impact cost. Entry-level industrial models start around the low thousands, while heavy-duty 1000+ kVA units can reach well into the tens of thousands.

We stock a full range of large generators for sale Australia-wide — all competitively priced and backed by expert advice. You’ll find flexible purchase or hire options to match your power needs and budget.

Diesel vs. Petrol: Comparing Large Generators Prices

When it comes to cost and performance, diesel vs. petrol is the big question. Diesel generators cost a little more upfront but deliver better fuel economy and longevity — ideal for constant or heavy-duty use. Petrol units, on the other hand, are cheaper initially and perfect for light, occasional power needs.

If you’re running critical systems or high-output equipment, diesel is the smart long-term investment. For portable or backup use, petrol keeps things simple and affordable.

Need Short-Term Power? Explore Generator Hire Options

Not every job calls for a permanent setup. That’s where generator hire comes in handy. Whether for an event, emergency, or temporary site power, renting lets you access top-tier equipment without the full purchase cost.

At Generators Australia, you can hire large units for short or long terms, with delivery, setup, and maintenance included — no hassles, just dependable power when you need it.

FAQs

What can a 10,000-watt generator run in a house?

Most essential appliances — fridge, lights, fans, and a few power tools.

How big is a 300kW generator?

Roughly the size of a small car, weighing several tonnes.

How large of a generator do I need to power a house?

Usually between 10–20 kVA for full coverage.

What will a 12,000-watt generator run in a house?

Air conditioner, fridge, lights, and key household appliances.