So, where do we draw the line? At which percentage of all human electric output do we say, maybe there's something wrong with this picture? 1% total? 5% total?

So, where do we draw the line? At which percentage of all human electric output do we say, maybe there's something wrong with this picture? 1% total? 5% total? 20% total output? We're at 0.59% now. Of all electricity we generate as a species.