Cost of lighting over time

[Paul_F]

A beautiful example of the adage that the stone age didn't end because we ran out of stone. Cost is a really good proxy for energy consumption here...

[Paul_F]

[GarethC]

And the first chart doesn't cover widespread LED adoption.

Curious to see what's happened to renewable energy costs. Has been a bumper installation year, so hopefully more progress despite nuts international shipping costs.