Environmental sustainability in non-residential buildings by automating and optimization LENI index

Directive 2002/91 / EC as amended by 2010/31 / EU introduces procedures for energy certification aimed to determine, through the numerical indicators, the overall energy efficiency of the buildings, but notes the thermal and electric consumption. Often, the power consumption is incorrectly underestimated, this consumption would to be considered with great attention. In fact, compared to a committed capacity of less, compared to thermal plants, have times of utilization often far higher, leading to energy requirements to levels similar or even higher than those thermal, being the conversion factor of the electrical energy increasingly high. Leaving aside the procedural scheme energy certification, this article proposes a procedure, based on UNI EN 15193 and EN 15232 A possible to assess, through a numeric indicator of efficiency systems for electric lighting of the interior, they are kind of on / off equipped with systems for automatic adjustment dependent occupation of the premises or on the availability of daylight.