Barrels of oil equivalent to megawatt hours conversion calculator above calculates how many megawatt hours are in 'X' barrels of oil equivalent (where 'X' is the number of barrels of oil equivalent to convert to megawatt hours). In order to convert a value from barrels of oil equivalent to megawatt hours (from BOE to MWh) simply type the number of BOE to be converted to MWh and then click on the 'convert' button.