Diesel Generators – Fuel Tank Considerations

When considering the installation of a fuel tank (whether an integrated tank within the base of the generator or a separate bulk fuel tank) here are some useful pointers. For more information you can check out the Environment Agency and DEFRA guidance.

  • Fuel tanks should be positioned somewhere that minimises the risk of the tank being damaged by impact. Depending on the location you could also protect the tank from this occurring by installing barriers or bollards around the tank.
  • Tanks should be bunded. The bund must hold 110% of the capacity of the container. Integral tanks to generators are always bunded in the UK. For older single skinned tanks, these need to be within a masonry or concrete bund (again with 110% capacity of the container)
  • If the vent pipe of a fixed tank, and the tank itself, can’t be seen from where the tank is filled you must fit an automatic overfill prevention device to the tank. This generally cuts off the flow of oil to the tank when it’s full.



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