Third sentence in the article:

The power flows from a mix of solar panels and hydroelectric turbines including the Hoover Dam.

It seems odd to think about hydroelectric power in a desert as a renewable resource, but it does come from snow in Colorado.

Its not sustainable at current Las Vegas water consumption rates.

http://www.ibtimes.com/lake-mead-water-level-drops-record-lo...

California is apportioned 14x more water from the Colorado Basin than Nevada, Arizona 9x more [1]. Las Vegas has implemented several water conservation measures [2].

[1] https://en.wikipedia.org/wiki/Colorado_River_Compact [2] https://www.brookings.edu/blog/planetpolicy/2015/05/02/5-fac...

California also has 14x the population of Nevada, so that's not too surprising

That's not why California gets more water. It has to do with how Water Rights in the Western US work [1].

[1] https://en.wikipedia.org/wiki/Prior-appropriation_water_righ...

Well, sort of. The fact that CA has 14 times the population today is strongly related to the fact that it applied 14 times the water for productive use in the past.

Really? I would have thought that nearly all the power used in Las Vegas would come from the Hoover Dam.