[angrycontrarian]

Again, as with the sibling comment, I would like to see empirical data on the cost viability of existing solar and wind installations. Most of the links posted so far seem to present projections about the future, which seems to imply that wind and solar tend to be higher cost today.

[epistasis]

Empirically, building more of these technologies reduces the costs of these technologies. This is often called Wright's Law across a wide range of industries. These links look at real data for this.

If you are unwilling to accept this premise, of changing costs, then there is no neutral or accurate source that you will accept. Which is kind of what I expected when I responded, so I regret taking the time. I hope other readers of these comments can benefit from the knowledge, however.