> However, look at it this way: which is easier to replace, the entire fleet, or centralized power plants? The entire fleet I'd think. It's certainly much mor

> However, look at it this way: which is easier to replace, the entire fleet, or centralized power plants? The entire fleet I'd think. It's certainly much more likely to happen first. (Cars have a much shorter average lifespan than power plants; the natural gas power plants we're building right now have a designed lifespan of up to 50 years. Very few cars coming of the production line today will be on the road in 50 years.)