Today, we are starting to see that renewables are not able to live up to the promise modelers hoped they would have...
Let’s look at some of the issues:
[1] It is becoming clear that intermittent wind and solar cannot be counted on to provide adequate electricity supply when the electrical distribution system needs them.
Early modelers did not expect that the variability of wind and solar would be a huge problem. They seemed to believe that, with the use of enough intermittent renewables, their variability would cancel out.