No, I couldn't find it again, it was just from memory. But a check on your number shows that it came from 2004. The price of solar panels has dropped ~90% since 2004, and price is fairly well correlated with carbon footprint.
> The price of solar panels has dropped ~90% since 2004, and price is fairly well correlated with carbon footprint.
Part of that low price was China flooding the market with cheap subsidized cells in other to take the competition out of business. Similar to the way Amazon puts the prices (of products and prime) up in markets where they've already eliminated most of the competition.
I don't think actual energy footprint has reduced by that much, I'm sure it has a bit though.
