SOLAR: Las Vegas to tap the sun to light famous 'welcome' sign Whitney Blair Wyckoff, E&E reporter Published: Thursday, September 5, 2013 A city known for its glitzy casinos and big-money jackpots is about to see a different kind of green. Please subscribe to Greenwire to read the full story. Username: Password: Forgot your access codes? Recover them. Not a subscriber? Sign up for a trial. Ready to subscribe? Click here.