Tesla opens up Solar Roof pre-orders, answers the most important question: how much will it cost you?

Back in October of last year, Tesla unveiled a new project it had been secretly cracking away at behind the scenes: solar roof tiles. Unlike traditional solar panels that sit on top of the roof, these solar tiles would replace your roof outright — and, if all went to plan, they’d look as good as any other roof. Just… maybe a little shinier. The first question that popped up on everyone’s mind