ALRO Group, the biggest industrial power consumer in Romania will present how as part of its ambitious projects to lower specific energy consumption over the last few years, and in order to reach the next level, ALRO decided in 2018 to implement an AP12 Low Energy technology. ALRO mandated Rio Tinto Aluminium Pechiney (RTAP) for the supply of the technology. To guarantee smooth technology transfer and achieve step change performance the AP Technology™ standard “cell development cycle” approach has been used. ALRO and RTAP worked together as a team to execute specific activities such as measurement campaign, modelling, risk analysis, readiness assessment, onsite and remote support, data analytics, go-no go, etc. This article presents this project that achieved step change reduction in specific energy consumption along with some supporting activities and tools.