DYNA JOURNAL ENGINEERING

Key words:

LIDAR urbano, Tejados en edificios, Eficiencia energética, Energía solar, urban lidar, building roofs, energy efficiency, solar energy

Article type:

ARTICULO DE INVESTIGACION / RESEARCH ARTICLE

Section:

RESEARCH ARTICLES

ABSTRACT:
There are many roofs in urban areas that are so different in terms of sunlight incidence. Slope and orientation are decisive factors in solar energy technologies, and they can be optimized by installing solar modules fixed to those roofs that are well oriented.
In Spain, locating the most efficient roofs can be automatically carried out with LIDAR techniques using data provided by the Project PNOA 2008-2012. The flight covers almost all the national territory and has an average density of 0.5 points/m2.
This article aims to describe a quick and accurate methodology to indentify which roofs in urban areas have suitable orientation and tilt values. A density of 0.5 points/m2 could be firstly considered small, but applying very simple post-processing it is enough for the aim of this work. It is used a Digital Elevation Modelling software representing a good solution for discriminating the roof sheets of an urban area that have greater irradiance incidence.
The detection of these roofs can be a good tool for promoting implementation of solar panels with minimal investment and maximum efficiency.

Keywords: urban lidar, building roofs, energy efficiency, solar energy