>> Haven't we more or less concluded that a million piecemeal rooftop installations of solar are about the worst way to do it?
It really depends on what you mean by 'worst'. In terms of land-usage it's the best. In terms of speed-of-deployment it's the best. In terms of distributing capital spend its the best.
In terms of capital return, that will vary from one house to the next because it depends on location, energy consumed (and when), elec prices in your region, grid stability, and so on.
what do you mean by "distributing capital spend"? as in the money to pay for the installations is not concentrated to large utilities? why is that desirable?
It really depends on what you mean by 'worst'. In terms of land-usage it's the best. In terms of speed-of-deployment it's the best. In terms of distributing capital spend its the best.
In terms of capital return, that will vary from one house to the next because it depends on location, energy consumed (and when), elec prices in your region, grid stability, and so on.