And the average increase in world population is about 1% per year, plus the bulk of the existing population is 'developing' i.e industrialization.

As fast as solar, wind, etc electricity production grows, the number of people requiring it grows along-side.

Also, 'renewable' is misleading, 'replaceable' is more accurate, all renewable energy generators wear out as everything does and need to be replaced using non-renewable energy mostly (you can't build solar panels from solar panel energy)