You miss my point. The reason solar is so cheap right now (along with the huge amount of government subsidies) is that the huge amount of energy required to manufacture them is currently done with very cheap coal in China.
>Cost of current production is an upper bound.
Under the current state of the energy economy, maybe. If we had to replace all manufacturing power sources with renewables - absolutely not.
>Cost of current production is an upper bound.
Under the current state of the energy economy, maybe. If we had to replace all manufacturing power sources with renewables - absolutely not.