It's worth noting the delta between this price, versus buying more normal panels on the open consumer market - for similarly optimistic reasons! Based on a cou

It's worth noting the delta between this price, versus buying more normal panels on the open consumer market - for similarly optimistic reasons! Based on a couple of panels I recently picked up on Aliexpress, they're running around 550-600 EUR (delivered) per kW, based on 200w panels. (You could probably go lower with more careful shopping and/or a bulk discount.) At these prices, a 29kW array (like MKB's) would cost 16-17.5k EUR, panels alone. Of course, this price is without fitting or any other required parts (noting the Powerwalls especially!), would be considerably uglier on your roof than Tesla's offering, and would likely not even fit on the same roof area (so you'd have to settle for fewer kWs) - but it's exciting how cheap solar panels have become - and looking to the future, they'll become even cheaper and more efficient over time.