"Electricity generators" refers to machines or devices that produce electrical energy, which is the power used to light our homes, run appliances, and operate various devices. Full definition
But while that motion helps produce the fusion reactions that could power a new class of electricity generator, the turbulence it generates can also limit those reactions. (pppl.gov)
While humankind has been digging fuel from the ground and burning it for power, living plants and the soil they grow in have been hiding some serious potential as electricity generators. (newscientist.com)
This is an interesting assessment of power loss in human powered electric generation, but the fundamental assumption that bike powered electricity generators are not sustainable is flawed. (lowtechmagazine.com)