It is nothing compared to the energy used to produce the setup.

What is missing here is the fuel input - the food humans need to consume to power such a device. Everybody here knows how many calories riding a bicycle hard can burn and those calories need to come from somewhere. Growing plants to feed them to animals which are then slaughtered and fed to a human who is processing the meat into energy which is going into such a generator is really, really inefficient. Getting those calories from plants is better, but a solar panel with a battery is better. Simply taking the energy from a grid which is powered from renewables might be even better.