I guess we could all commit suicide to avoid the future that Ruthy projects. But don't because she is using a definition of solar energy that is too narrow. Why she chose an attack on Paul Krugman to air her view heaven only knows?
She is right when she says scale of production unit is critical, but so is replacement. We will replace 30 sizeable wind turbines with one in the future because it us possible and we will get yields up.
We will replace inefficient automobiles as scale economies make the electric vehicle the vehicle of choice.
Artfully ruthful....