This case study presents a discussion on the possibilities of implementing and using energy accounts in developing countries as a complement to traditional energy balances and statistics, which is particularly applicable in Central American countries. It includes lessons learned from the implementation process by key stakeholders. For instance, Guatemala has pioneered the development and use of energy accounts, which provide a detailed description of energy use by the various economic activities. The experience in constructing and using the energy accounts has been very instructive for the country and suggests the great potential they have as a tool for monitoring energy efficiency nationally and regionally.