A proposal of a new time base white certificate evaluation

White certificate schemes mandate energy companies to promote energy efficiency with flexibility mechanisms, including the trading of energy savings. The calculation of white certificates aims to highlight how the energy consumed in different time states (from unconventional sources), has a variable content. The goal is not to influence the production mix, for us, the production mix gives us a measure of how much really, in each hour you are consuming that amount of energy. We will focus on 'how much' and 'when' changes in power consumption due to an Energy Efficiency Measure impact on the Italian energy system and its possible value. In particular using the hourly energy mix f the national system and the hourly profile before and after the intervention, we propose to introduce a time based evaluation of white certificates In the whole analysis, we consider two distinct interventions implementing efficiency by renewable energy self-consumption: photovoltaic installation and phtovoltaic plus storage installation. Results and comments of such calculation will be provided in the paper.