The document discusses the rise of cleantech and energy technologies (ET) as an important sector. It notes that ET requires multi-disciplinary expertise across electrical, mechanical, electronic and other fields. ET also requires extensive partnerships due to the diverse knowledge needed around customers, legacy systems, protocols, policy and major players. The document outlines growing investment and focus on ET in both private companies like Cisco, AT&T, Google, and Microsoft as well as by governments like India which plans to spend $2.3 trillion on energy priorities including efficiency and renewable sources by 2030.