Transforming energy productivity through value chains. Final report of opportunity assessment for research theme B1 - Denham, T.; Xing, K.; Dodson, J.; Pears, A.; Agrawal, H.; Azar, B.; Hossain, J.; Indrawasi, K.; Katic, M.; Liu, M.; Rajakaruna, Sumedha; Shawon, M.; et al. (2021)