Short term stability of the gird does not compute with high penetration of wind. The short term stability of the grid is fine, especially in amurka where wind is 2%. High penetration of wind, you mean like in north germany or higher in Denmark, where we're well over 20%, and the grid still functions?

What we've learned is... utility engineers like to have something to do. In spite of them doing something, electron force still flows.

At current levels, and projected into the mid-term, there are zero effects on the grid which can't be managed cost-effectively.

What required technology?

"Life shrinks or expands in proportion to one's courage." - Anaïs Nin