Huawei Technologies Co. Ltd., JANZ CE and u-blox Holding AG have partnered to develop NB-IoT Electrical Energy Smart Meters in Portugal. EDP Distribuiaao is using this technology for a pilot project as part of the UPGRID project of the Horizon 2020 Program of the European Commission. The infrastructure network using NB-IoT technology has been installed by NOS, based on Huawei's technology. NOS thus becomes the first operator in Portugal to test the 4.5G - IoT technology on its network infrastructure. This solution combines emerging technologies with the smart metering of electrical energy and with the latest generation networks to oversee the electricity network. NB-IoT is a Low Power Wide Area (LPWA) wireless access technology, which offers a wide range of advantages, including a battery life of up to 10 years, a gain of 20dB over conventional GSM networks and support to more than 100,000 connections per cell. NB-IoT thus represents a disruptive step on the path towards the Gigabit Society and will evolve over the next few years to 5G (in the field of massive Machine Type Communications) that will support up to 1,000,000 connections per cell. Based on optimized and bi-directional communication, the value of NB-IoT is recognized worldwide in relation to intelligent networks, and addresses the following challenges: Customer satisfaction, through the automatic detection of failures, improving the time needed to restore service.