Analysis of thermal loads using BIM methodology to reduce the energy consumption of buildings in Morelos, Mexico

A Net Zero Energy Building (NZEB) is a building with a highly reduced operational energy consumption where energy efficiency measures have been implemented that allow the energy demand to be supplied by renewable sources. To this end, this paper describes the adaptation and implementation of a methodology to transform an existing residential building into a net zero energy building and thus achieve a self-sustainable building, considering as a case study a warm sub-humid climate in the state of Morelos, since this climate predominates in 85% of the total area of the state. The types of feasible and affordable eco-technologies to be implemented in Morelos are analysed and discussed. The energy efficiency of the building is analysed considering the combination of construction techniques, suitable materials for the envelope, thermal loads, and electrical energy consumption, with the aim of reducing the high dependence on fossil fuels in the construction sector.