This is a very disruptive technology. I am wondering how much surface of solar panels (and "solar power") do they need to charge to answer to all the demand on

This is a very disruptive technology. I am wondering how much surface of solar panels (and "solar power") do they need to charge to answer to all the demand on a daily basis. And by extrapolation is this can be done widely (for buildings, universities, homes...)? The oil industry should rethink its business model. And we should buy Tesla's stock right about now.