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Your Essential Guide to Buying Diesel Generators: Tips and Factors to Consider

Are you in need of a dependable power source for backup, industrial purposes, or off-grid locations? Diesel generators might just be the perfect solution for you. With countless options on the market, how can you be sure you're choosing the right one to meet your needs? In this in-depth buyer's guide, we'll walk you through the key factors to consider when shopping for a diesel generator, ensuring you make a well-informed decision tailored to your specific requirements.

Sizing Your Generator:

The first step in finding the ideal diesel generator is to determine the right size that can adequately handle your power demands. Generator sizes are usually expressed in kilowatts (kW). To pinpoint the appropriate size, list all the essential appliances and devices that the generator will power, then calculate their total power requirements in watts. Add an extra 20-25% as a safety buffer to cater for future expansions or unanticipated power demands. Keep in mind that it's better to invest in a generator that's slightly larger than one that's not up to the task.

Fuel Efficiency Matters:

A significant advantage of diesel generators is their fuel efficiency. Generally, diesel engines consume less fuel than their petrol counterparts, making them more economical in the long run. When comparing various generators, note their fuel consumption rates (measured in litres or gallons per hour) at different load levels, and estimate the operating costs based on your expected usage.

Keeping the Noise Down:

It's no secret that diesel generators can be quite loud, which may pose problems in residential areas or noise-sensitive locations. As you assess different generators, take note of their noise levels (measured in decibels) and consider models with noise-reducing enclosures or low-noise designs, if required. Don't forget to check local noise regulations to ensure compliance.

Maintenance is Key:

To ensure your diesel generator remains in top shape and performs optimally, proper maintenance is essential. When evaluating different models, take into account factors such as maintenance intervals, accessibility of components, and availability of spare parts. Opt for a user-friendly generator that is easy to maintain, and backed by a trustworthy manufacturer or distributor offering outstanding support and after-sales service such as Pace Power & Air Ltd.

Comparing Costs:

The initial price tag of a diesel generator is just one aspect of its overall cost. You'll also need to weigh factors like fuel expenses and maintenance costs. Make sure to compare both short-term and long-term costs when making your decision.

Tips for Choosing the Ideal Generator:

Armed with an understanding of the critical factors to consider when purchasing a diesel generator, follow these tips to find the best option tailored to your needs:

  1. Assess Your Power Requirements: Be honest about the devices and appliances you'll need to power, and choose a generator that can accommodate those needs, plus a safety buffer for future growth or unforeseen demands.

  2. Emphasise Fuel Efficiency: Select a diesel generator known for its high fuel efficiency, as this will lower your operating costs in the long run and offer a more eco-friendly solution.

  3. Mind Your Surroundings: If noise is a concern, opt for a low-noise generator or invest in sound barriers or a noise-reducing enclosure to minimise disruptions to neighbours or the local environment.

  4. Research the Brand: Pick a reputable manufacturer with a solid history of reliability, quality, and customer support. This will ensure access to spare parts, servicing, and technical assistance when required.

  5. Weigh Total Costs: Don't fixate solely on the initial purchase price – consider the long-term costs of fuel, maintenance, and repairs


Pace Power & Air Ltd offers an extensive range of high specification diesel generators to meet customer requirements for any power application globally. Each JCB generator is built to the highest specification to deliver outstanding reliability, high performance and increased efficiency.

Enquire and select your ideal generator today at

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