TSLA solar roofs now on sale... Elon Musk has discovered a new passion in life — and it could be Tesla's best product yet http://www.businessinsider.com/tesla-solar-roof-elon-musks-best-product-2017-5 SolarCity has long been able to sell or lease a homeowner solar panels, but the Solar Roof offers a different value proposition. If you have to replace your roof anyway, why not replace it with a roof that generates power and saves you money over the long haul? With a 30-year-mortgage, if you stay in the house, you'll replace your roof at least once. At a cost of about $10,000, you maintain the value of the home, but you don't necessarily add much to it. The Solar Roof should last twice as long as a traditional roof (and maybe much longer) and it will both mitigate your electricity costs and, paired with a Tesla Powerpack battery, provide you with backup energy. The up-front costs are high, but the overall economics are compelling. And in sunny states where electricity is costly, such as California, a Solar Roof could net a homeowner tens of thousands of dollar over 30 years.