Tesla Motors CEO Elon Musk said Thursday the electric-car company is expanding its network of “Supercharger” stations in California and across the country, and that Tesla Model S owners eventually will be able to drive from Los Angeles to New York using only the company’s network of fast charging stations.

The Supercharger stations are also adding solar power and grid storage, which means they’d be both carbon-neutral and able to function if the nation’s vast electric grid crashed.