$Sunrun(RUN)$ With 15 years of experience, Sunrun’s growth has made it a leader within the residential solar installation industry. The company has installed over 285,000 solar and battery systems in 20 states. It offers a comprehensive solar installation process, inverter, backup batteries and home energy monitoring as well as ongoing maintenance for customers.福布斯今年九月的数据，近30万套系统。Poor ratings aside, Sunrun does appear to sell generally high-quality products. The company doesn’t produce solar panels and batteries itself—it partners with companies like LG, LONGi and Tesla. We recommend asking specific questions about which type of solar panels are being installed and from which manufacturer before you sign with any installation company 轻资产公司，主要业务其实是系统集成和后台管理。这些数据和后面文字里提及的每套系统25000刀都是福布斯的研究。主要是租赁系统给用户，当然也有全款购买的，福布斯只是从物业增值的角度认为这是个好买卖，降息周期是肯定利于光伏租赁的。（待续）