It doesn't, this is a snapshot of the costs now, you know what they were 5 years ago you can extrapolate a curve. The costs are still falling and will continue to fall.
I should be able to supply a data point of the cost of panels today without getting admonished as being off-topic, rtfm.
Yes it does miss the point. Panels are no longer the expensive part of solar. The expensive part is now things like labour, installation, and land acquisition, and bringing those costs down is going to be hard.
I should be able to supply a data point of the cost of panels today without getting admonished as being off-topic, rtfm.