A brief history of HVDC and HVAC was included in the study and a key comparison between both transmission systems was done. It was discovered that Alternating Current (AC) is more expensive than Direct Current (DC) and HVDC transmission has less corona and radio interference than that of HVAC, although HVAC also has its own advantage. This study examines two ways electrical energy is transmitted and discusses what the better choice should be in the engineering community. | Electricity energy transmission A case for high voltage direct current HVDC