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Generator load bank testing and proof load testing is a crucial component of preventive maintenance practice to ensure your generator performs in the event of a power failure. This test checks the generator engine’s ability to perform and provide the required power needed in an emergency.
Standby generators that are only run on a light load can give a false impression of capability and may be unable to run a heavy load due to a build-up of engine fuel deposits, resulting in a reduction in generator output in an emergency situation.
Over time, lightly loaded generator sets develop wet-stacking and carbon build-up in the combustion chambers and exhaust system, which can lead to increased oil and fuel consumption and poor engine performance. The use of a load bank helps prevents this and determines the generator’s capability to produce maximum output in terms of amperage and horsepower.
At minimum, we recommend that generator load bank testing should be performed on an annual basis to improve the life of the engine and alternator. The test gives you peace of mind that your generator will remain reliable throughout power interruptions and keeps your business running. Make sure it’s part of your FDL Planned Maintenance Agreement.


To find out more about our proof load testing services call:

0118 981 7451

Generator Load Bank Testing

We supply a mobile load bank, which is brought on site to allow the generator or UPS to be load tested in a safe and controlled environment. We performance test the generator and UPS system over a range of loads, over a period of time, monitoring performance before finally testing the overload capacity. Once the readings are recorded, we will supply the customer with an assessment and a report of the load testing results and any maintenance work required.
We recommend generators and UPS systems are load tested at least once a year to ensure the generators and UPS are fit for purpose when needed for an emergency.
For more information, please contact us on +44 (0)118 981 7451 or email generators@fdlpower.co.uk to discuss your load testing requirements.
UK wide service.

Please look at the services tab to see what we can offer:

  • Generator Installations
  • Fuel Systems
  • Control Panels
  • UPS Systems
  • Proof Load testing
  • Oil Sampling
  • Decommissioning and Removal
  • Tank Cleaning
  • Service and Maintenance
Diesel Generator Maintenance