Las Vegas luxury homeowners trying array of strategies to save resources

When Tesla's Elon Musk announced the debut of the company's Powerwall recently, the high-capacity battery joined a fleet of new products promising to green your luxury home, from solar-powered stereo speakers to home-management systems that track energy use. With traditional builders touting green home lines and eco-friendly custom design firms like Blue Heron enjoying increasing popularity, sustainable design is moving from the margins to the mainstream in Las Vegas.