Generators for Sale UK

At SGS Engineering, we have a wide range of quality diesel and petrol generators for sale, for trade, domestic and commercial use.

To find the model that's right for you, explore our selection of generators by clicking on our listings below. You can also make the most of our helpful ‘Generator Buying Guide' which explains everything from how to calculate your power requirements to which models are best suited to different jobs.

Why buy your generator from SGS Engineering?

Buying a generator from SGS Engineering ensures you receive a high-quality, efficient, and reliable power solution. With our extensive online generator product range, commitment to customer satisfaction, and focus on innovation, SGS Engineering stands out as a reputable choice for anyone seeking a dependable source of electricity for both residential and industrial applications.

If you need more help, you can contact us via email at [email protected] or via phone on 01332 576 850 and our team will be happy to assist you. If you want to know more about what makes us such a trusted seller, take a look at our reviews on Trustpilot, where we’re rated ‘excellent’ by our customers.

How do generators work?

Generators work by mechanically moving a coil of wire within a magnetic field, which induces an electric current in the wire. This process allows generators to produce electrical energy from various sources of mechanical energy, making them crucial for generating electricity in power plants, homes, and a wide range of applications.

Which type of generator should I buy?

There are many factors to take into consideration when choosing a generator. You need to work out the wattage (how much power) you'll need, you need to have an idea of what you intend to use the generator for, and what fuel source (petrol or diesel) you'd prefer to use to power your generator. Another consideration is the amount of room you can afford to a generator in your chosen space. For smaller areas and lower power operations, we have a number of highly effective and versatile portable generators for sale.

How do I measure a generator's performance?

Measuring a generator's performance is crucial to ensure it meets your power needs efficiently and reliably. Here are some key parameters and steps to help you assess and measure a generator's performance:

Output Capacity (Rated Power): Check the generator's rated power output, usually expressed in watts (W) or kilowatts (kW). This indicates the maximum load the generator can handle continuously without overheating or overloading.

Load Testing: Conduct load testing to assess how well the generator handles varying loads. Gradually increase the load on the generator, monitoring its stability, voltage regulation, and frequency control as you do so. A stable voltage and frequency are essential for sensitive electronics.

Fuel Efficiency: Measure the generator's fuel consumption under different load conditions. Fuel efficiency is critical, especially for generators used for extended periods, as it affects operating costs and environmental impact.

Noise Level: Use a sound level meter to measure the generator's noise output. Noise is an important consideration, especially for residential or noise-sensitive areas. Compare the measured noise level to the manufacturer's specifications.

Voltage Regulation: Check the generator's voltage regulation. This involves monitoring how well the generator maintains a consistent voltage output within acceptable tolerances as the load varies. Deviations outside the specified limits can damage connected equipment.

Frequency Control: Similar to voltage regulation, ensure that the generator maintains a stable frequency (usually 50 or 60 Hz) under varying loads. Inconsistent frequency can disrupt the operation of sensitive electronic devices.

Run Time and Fuel Tank Capacity: Determine how long the generator can operate continuously at a specific load level before needing a refuel. Ensure that the generator's fuel tank capacity matches your requirements.

Start-up Time: Measure the time it takes for the generator to start and reach its rated output after being initiated. Faster start-up times can be crucial during emergencies.

Maintenance Intervals: Consult the manufacturer's recommendations for maintenance intervals and assess how easily accessible and manageable these maintenance tasks are. Regular maintenance is essential for prolonged generator life.

Environmental Impact: Consider the generator's emissions, especially if you're using it in environmentally sensitive areas. Ensure that the generator complies with local emissions regulations.
Warranty and Support: Evaluate the manufacturer's warranty and the availability of customer support. A longer warranty period often indicates the manufacturer's confidence in their product's quality.