[hatbert]

> His cost argument doesn't make any sense. He is comparing some mythical 12x12' $10k panels to the same size of asphalt and is magically breaking even.

That stuck out at me as well. He's sort of saying "IF we could make these things for $10k per 144 sq ft section, then it would be cost competitive with asphalt." But then he completely punts on the question of how much it's likely to cost. It's not difficult to make some order of magnitude estimates for the cost of raw materials and the omission of such an estimate (even if just to show that the $10k per 144 sq ft goal is plausible) is, well... odd.

[imaginenore]

That, and the fact that asphalt doesn't cost $70 per sq foot. More like $2-3 per sq foot, and probably cheaper if you're doing it at large scale.