[tanbog]

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

[DennisP]

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.