When all energy fuels are exhausted, will humanity return to medieval age?

[tranquilium]

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When all energy fuels are exhausted, will humanity return to medieval age?

Clarification: By fuels I mean even nuclear fuels.

Energy from sources like solar, wind, hydro etc are negligible.

In 2014, China generates between 25% to 30% of its electricity from hydro, wind and solar, totaling between 1300 to 1800 TWh, which is more than the world electricity generation in 1950. So no, even if all fossil fuel, nuclear fuel is to be exhausted today and all renewable infrastructure in every country aside from China are all gone, then we'd still be generating more electricity than the entire world 1950. Keep in mind, this number is the generated power instead of capacity.