Generators 1kVA - 2200kVA
Generators for Sale - 1kVA to 2200kVA Gensets
Blue Diamond Machinery offers one of Australia’s largest and most trusted selections of generators for sale — from compact inverter units to industrial-grade diesel power systems. Whether you need a generator for your home, worksite, remote project or commercial facility, we’ll match you with the right solution.
Our range includes portable, standby, single-phase and 3-phase diesel generators from leading brands like Denyo, Kubota, FG Wilson, Perkins and Honda — backed by nationwide support, 24/7 emergency service*, and remote monitoring through our ONE Intelligent Energy platform.
Inverter & Portable Generators
Lightweight, quiet, and fuel-efficient. Our inverter generators are ideal for camping, caravans, events and home backup.
Size Range: 1kVA–14.5kVA
Top Brands: Honda, Genesys
✔ Safe for sensitive electronics
✔ Easy transport and storage
Home Backup & Emergency Generators
Stay powered during outages with a reliable standby generator.
Size Range: 1kVA - 10kVA+
Top Brands: Genesis, Honda, Perkins, Kubota
✔ Protect fridges, servers, security and more
✔ Automatic or manual start options
Diesel Generators (Single & 3-Phase)
Diesel generators for high-demand trade, industrial, and off-grid use.
Size Range: 6kVA–2200kVA
Top Brands: Denyo, Genesis, FG Wilson, Cummins Powered and Perkins Powered units.
✔ Prime or standby power
✔ Paralleling & synchronisation available
✔ Built tough for Australian conditions
Generator Hire & Rental Agreements for Mining & Large Projects
Short-term or project-based diesel generator hire from 50kVA–1110kVA.
Serving Perth, Pilbara, Karratha, Kalgoorlie, Dampier and more.
✔ Fast dispatch
✔ Custom hire plans
Not Sure What Generator You Need?
Get the Right Advice. Whether you're powering a remote site, keeping your operation online, or meeting compliance on a high-spec project, our expert team can help you size, spec, and select the right generator for your exact needs. Contact us today or call us on 1300 998 647 for fast advice and tailored recommendations.
Frequently Asked Questions
What generator type do I need?
The right generator depends on your usage. Inverter generators are best for light, recreational use like camping or running electronics — they’re compact, quiet, and fuel efficient. Portable trade generators are more rugged and designed to handle tools and small machinery on job sites. For households or businesses needing backup power during outages, home standby generators provide peace of mind and can be fuelled by petrol, diesel or gas. If you're powering a remote site, large-scale operation or critical equipment, diesel generators are your best option — built for reliability, high output, and often configured in 3-phase with remote or synchronised capabilities. If you're unsure which type fits your setup, give our team a call and we’ll help you choose..
What size generator do I actually need?
To size your generator correctly, think about everything you need to power, then check the wattage requirements for each item, especially those with motors or compressors, which often need extra power at startup. Add up the total and include a buffer for peak loads. For example, most home backup systems require 10–20kVA, while trade tools and small site equipment often need 6–15kVA. Off-grid or high-demand commercial applications usually require 30kVA and above. If you’d prefer to talk it through, our team can help size a unit in minutes, just call us.
Should I choose a diesel or petrol generator?
Diesel generators are generally the better option for heavy-duty use, long runtimes, or larger loads. They're more fuel-efficient, reliable under pressure, and ideal for construction, mining and off-grid scenarios. Petrol generators are cheaper to buy, quieter, and a good fit for occasional use or lighter loads like garden tools, small trade jobs or home backup. If you’ll be using the generator frequently or need it to run heavy equipment, diesel is almost always the smarter long-term investment. If it’s occasional use or you need something portable and affordable, petrol can work well.
How much should a generators cost?
Generator pricing varies widely depending on size, brand and type - engine manufacturer, alternater and other features also impact the price you'll pay. But as a general guide: Smaller inverter and portable models can start under $1,000, while mid-range trade and backup generators typically fall between $7,000 and $20,000. Large diesel units for commercial or industrial applications can range anywhere from $5,000 to over $400,000+ depending on capacity and features. If you’re not sure where to start, we can recommend a generator that fits both your power requirements and your budget.
Generator Support Plans
Choose a support plan that matches your needs, from basic coverage to full service with SLA-backed uptime.
All tiers include remote access via ONE and are compatible with third-party generators.
- Basic: Visibility and basic reporting
- Next: Active project monitoring + on-demand support
- Diamond: Mission-critical support with 24/7 emergency response and uptime guarantee
Power Solutions for Every Scale
Power solutions for every scale, from small standby and backup generators to full turnkey power stations for mine sites and remote operations.
All our generators are backed by national service*, remote access & monitoring via ONE, and expert support from our power specialists.
With national coverage, a range of industry leading clean energy alternatives, and hands-on support, Blue Diamond Machinery is the partner of choice for your next project.
Why Blue Diamond Machinery
Industry Leading Support
Any purchase with Blue Diamond is backed by an
Australia Wide Servicing & Support
A national network of branches and service agents means we can deliver servicing, repairs & support to our customers across Australia.
Industry Leading Warranties
All new products have a minimum of 12 months warranty and come with the added security of a 100% 30 day money back guarantee.
All Products Backed by Genuine Parts
With an experienced team and comprehensive spare parts inventory, we can rapidly source the right parts for your equipment, fast.
