When choosing a generator, it’s easy to get caught up in technical specs or focus on a single feature like power output. In reality, the right generator comes down to how and where you plan to use it.
From compact portable units to larger backup systems, understanding a few key factors will help you choose a setup that works reliably, efficiently, and without unnecessary complexity.
Start with Power Output
One of the most important considerations is how much power you actually need.
For lighter use, such as powering essential household appliances, tools, or outdoor equipment — a compact generator with a lower output can be more than sufficient. Models like our t-mech portable petrol generator with outputs up to 3.3kW are ideal for everyday tasks, temporary setups, or emergency home use where flexibility matters most.
For more demanding setups, such as running multiple tools or supporting business operations, we offer higher output machines in the 5kVA to 6.5kVA range provide the additional capacity needed to keep everything running smoothly.
Consider Runtime and Fuel Capacity
Runtime is often just as important as power.
Generators with larger fuel tanks can run for extended periods without interruption, which is particularly useful for backup or site-based use. For example:
- Compact portable units may offer around 8 hours runtime at 50% load
- Larger diesel generators can deliver 14 to 16.5 hours runtime at 50% load
- Extended-run models can operate for up to 35 hours at 50% load
This makes higher capacity and diesel-powered setups especially useful where long, uninterrupted operation is required.
Portability vs Fixed Use
Where and how you’ll use your generator plays a big role in the right choice.
Portable generators are designed to be moved easily between locations, making them ideal for:
- Outdoor use
- Job sites
- Temporary setups
- Emergency home backup
Our T-Mech Generators offer features such as built-in wheels, handles, and compact frames make transportation straightforward, even across uneven ground.
For more permanent or high-demand setups, our larger generators offer greater output and longer runtime while still maintaining mobility when needed.
Noise Levels and Environment
Noise can be an important factor depending on where the generator will be used.
Generators with enclosed or “silent” designs help reduce sound output, making them better suited for residential areas or environments where minimal disruption is important.
Lower noise levels (around 72 dB at 7 metres) provide a more comfortable experience, particularly for home backup or outdoor environments.
Open frame generators remain a great option for workshops and job sites where noise is less of a concern but durability and accessibility are key.
Ease of Use and Starting System
Ease of operation can make a big difference, especially in urgent situations.
Modern generators offer:
- Electric key start systems for quick and simple operation
- Manual start options for straightforward reliability
Features such as digital displays (available on selected models) allow you to monitor voltage, output, and running time, helping you stay in control of performance.
Backup Power and Automation
If you’re planning to use a generator as a backup power source, automation becomes a key feature.
Some generators include a built-in Automatic Transfer Switch (ATS), which:
- Detects power outages automatically
- Starts the generator instantly
- Switches back to mains power when restored
This is particularly useful for homes, businesses, or environments where downtime needs to be minimised.
Output Options and Compatibility
It’s also important to consider what you’ll be powering.
Generators with multiple output options allow you to run different types of equipment simultaneously. Common configurations include:
- 230V AC sockets for general appliances
- 400V outputs for more demanding equipment
- 12V DC outputs for battery charging
Having a mix of outputs gives you greater flexibility across different use cases.
Durability and Safety Features
A reliable generator should be built to handle demanding environments.
Features such as:
- Powder-coated steel frames
- Low oil shut-off systems
- Automatic voltage regulation (AVR)
all contribute to consistent performance and help protect both the machine and the equipment you’re powering.
Choosing a Generator That Fits Your Setup
Ultimately, the best generator isn’t just about one feature — it’s about how everything works together.
A compact portable model is ideal for flexibility and occasional use, while our larger generators provide extended runtime, higher output, and automation for more demanding environments.
By focusing on how you’ll actually use the generator, it becomes much easier to choose a setup that delivers reliable power when you need it most.
Explore Our Generator Range
From compact portable units to high-performance backup systems, explore our full range of generators to find the right solution for your setup.