Internet of things (IoT) is having an increasing presence in our society and the industry is committed to its development and evolution. IoT represents a new form of communication between machines without requiring human interactions in order that different devices and sensors are able to transmit data to the network about the physical world, these can be analyzed and interpreted thus obtaining useful information to help take decisions, monitor or store data among other examples. In most cases, these devices or sensors are not connected to the power grid and require autonomous sources of energy to be powered. This circumstance is relevant when it comes to deploying networks that fits these devices. Therefore, new technologies have been developed recently in order to allow the correct development and deployment of these devices. This is how Low Power Wide Area Network came about. These technologies are designed to be able to offer long-range communications using a low use of energy resources. Within these technologies, two relevant examples are SigFox and Narrowband-IoT. The main objective of this project is to evaluate the energy consumption of these two technologies using different platforms available in the market, laboratory tools such as a power analyzer and different software to configure the devices and obtain the results. In this way, a realistic model of energy consumption can be generated with both technologies and, based on the results obtained, estimate the lifetime and the energy cost of data delivery of devices that use these technologies.