There is a lot of empty practically free land in the world.
Also, it is estimated that it would take about ~7 million acres to power the US entirely with solar.
The US currently uses about 40 million (!!!!) acres for corn for ethanol.
Land is not a problem in land-rich nations like Russia or Canada, of the US for that matter. It is however a problem in Europe where distances are shorter, population density is higher and so are the land values and thus both direct & shadow costs associated with infrastructure development.
Also, it is estimated that it would take about ~7 million acres to power the US entirely with solar. The US currently uses about 40 million (!!!!) acres for corn for ethanol.
Land is just not a problem, at all.
https://elements.visualcapitalist.com/how-much-land-power-us....
https://frontiergroup.org/resources/ethanols-outsized-place-....