This is the third version of the solar roof tile from the company and between the correct versions and now, the company says it has increased the power density, halved the tile used and significantly reduced the cost compared to the second generation tile.
Musk stated that there will always be extreme cases where roof and panels may be less expensive than Tesla solar tiles. But he said he was pretty sure 80% of the time the company's solar roof would be cheaper.
One of Tesla's biggest pushes for these new tiles is the required time and ease of installation. Initially, the company will install them on its own, but will start using external contractors to install the roofs. The goal is to have these roofs installed in eight hours. If you've ever had a roof installed, it's usually a multi-day event. So eight hours is very fast.
So far, you can only order black glass tiles, but the company hopes to have new variants available every six to nine months. This includes working on the design of clay tiles for Mediterranean-style houses.
As for the performance of the tiles against the panel. At the cell level, Tesla is focused on energy equivalence, but admits there is a slight single-digit hit to that efficiency just to make the tiles look nice. The company mentioned that you would have more floor space in your home than panels, so overall, this is a better solution because of the size of the area covered. Plus it looks better.
Of course, if you need a new roof.
The new sunroof is available for order now and the company expects to begin installing customers' homes in a few weeks. The tiles will come with a 25-year warranty.