First of all, read the white paper we are coming out with next month. We have a very detailed graph, but if you take a look at where the experience curve ends and how it's coming down in price, and you extrapolate the growth of solar, if solar were to power the entire planet over the next number of years, where would we go in terms of the price? Well, the price would be at 35ยข per watt, installed. That's where we're going, which is about an order of magnitude less costly than it is now. What will happen is that solar will become the lowest-cost form of energy on the planet. That's because we're powered by silicon, which makes up 25.7% of the earth's crust.
On November 22nd, 2012. See this statement in context.