Microwave assisted acid hydrolysis for bioethanol fuel production from sago pith waste.

•Microwave acid hydrolysis was carried out using H2SO4 and HCl for SPW.•A maximum of 88% glucose yield and 3.1 g ethanol per 10 g SPW was obtained.•Energy consumption to produce 1 g glucose and 1 g bioethanol fuel was calculated.•A minimum of 31. 77 kJ was used to produce 1 g bioethanol fuel from SPW.