I can see why 8-10 years looks like a wall in terms of how much total solar we want.
However panels age which costs ~1% of capacity per year even before they need to be replaced, and global electricity demand tends to increase 2+%/year. So the more solar you install the more you need to install every year just to keep providing the same percentage of total electricity.
On top of this lower prices mean you it's still worthwhile even if a larger percentage of output gets wasted. Similarly, as storage gets cheaper (inflation adjusted) there's going to be more demand to cheaply charge it thus raising the demand for panels.
However panels age which costs ~1% of capacity per year even before they need to be replaced, and global electricity demand tends to increase 2+%/year. So the more solar you install the more you need to install every year just to keep providing the same percentage of total electricity.
On top of this lower prices mean you it's still worthwhile even if a larger percentage of output gets wasted. Similarly, as storage gets cheaper (inflation adjusted) there's going to be more demand to cheaply charge it thus raising the demand for panels.