Profile: Eco-friendly and green; Smart charging; Down-to-earth expert Dr. Ren Jidong from Huawei designed an algorithm that makes bus charging more efficient, saving Shenzhen Bus Group about 10% in electricity fees. Jidong is a down-to-earth guy, helping where help is needed most. He believes innovation is the easy part, but replication is difficult to achieve. Jidong might be humble, but his work speaks for itself — his advanced algorithms are impacting work around the world. He likes a simple life, happy to work in the field over a comfortable office.