This is caused by the squeegee being angled incorrectly forcing the water under the rubber blade out into the dry area of the glass or from solution being pushed up into the top edge of the window.
Although there is a slight difference between our original calculation and Teslaâs new oneâlast fall we built in a cost of $6,500, Teslaâs current cost for a Powerwall as part of a Solar Roof installation is $7,000.
This would be amazing if true, but Musk later started to compare the solar roof's supply chain to ceramic or concrete tile roofs, which are the most expensive options customers can buy. They can range anywhere from $400 to $2,000 per square (100 square feet).