The Bangladesh Power System Upgrade and Expansion project is a successful example of China-Bangladesh cooperation under BRI. The project, costing around USD 165 million, has benefited over 7 million locals. The project helped provide over 2.5 million locals (in rural) areas with electricity connections.

Source
http://www.china.org.cn/opinion/2019-09/29/content_75257537.htm
https://www.aiib.org/en/projects/details/2019/approved/Bangladesh-Power-System-Upgrade-and-Expansion.html
https://www.adb.org/projects/49423-004/main