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> This is flat out wrong. many communities already exist exclusively on renewables.

"Communities" maybe but what about (heavy) industry like the the one required to e.g. manufacture more wind/water turbines and parts, (continue) to research more efficient technologies in the future, to sustain the growing population etc. ?

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Iceland seems to do pretty well on almost exclusively renewables. And this includes Aluminium smelters which are amongst the most power-intensive heavy industries.

Iceland uses plenty of geothermal power. That doesn't say anything about what's feasible with wind/solar.

Wind/solar and hydro/geothermal really should be described by different words. Using "renewables" for both causes a lot of confusion.

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