In Short
AXON Technic supplies day tanks for generators: the small fuel tank beside the engine that is filled from the bulk storage and feeds the engine directly, so the set always has fuel ready when it starts.
A daily fuel tank keeps a supply of fuel close to the engine, between the main fuel tank and the generator, so the generator never runs short of fuel in standby, prime or continuous duty.
AXON builds every daily fuel tank for its own generator and project, with the safety and monitoring equipment the site needs.