What's more current than the weather?

[tw]

Originally Posted by Undertoad

20% of the world's electricity is used for lighting. Eventually it will be 4%, because LED.

One would think so using some assumption - that were used for over a century. IEEE Spectrum (long ago) debunked that assumption. What happens when lights and electricity get cheaper? The number of lights increase drastically. Ironically, as the cost of lightning went down (all through history), then mankind spend same or more on lighting.

The LED is not expected to reduce energy consumption. It is expected to increase the amount of lights we use, need, and leave on.