Tesla solar roofs can now be preordered; CA installations start in June

Tesla Solar RoofElon Musk, habitually behind schedule, announced on May 10 that anyone can now preorder a Tesla Solar Roof—a roof made of shingles with built-in solar cells. Musk had previously said preorders would open in April, and promised the product would cost less than a conventional roof if you factor in the energy savings. DON'T MISS: Tesla debuts...