Stone Quarry of the
Irmãos Queirós,Lda.

Pedras Salgadas

Project Undertaken
Diagnosis of energy efficiency

Realization of an Energy Audit during the period of Jan-2011 to Dec-2011 to allow the characterization of energy consumption of the installation, by identifying them and quantifying them discriminately in different sectors and most relevant equipment. Based on the data obtained through this audit, it became clear that there are several opportunities to improve the energy performance of the installation, including the level of some of the areas and equipment, serving as an example, the implementation of a photovoltaic system for self-consumption and a capacitor bank in the Transformation Station that is responsible for power to the Crushing Central Plant of the company, whose implementation project and optimal dimension were performed during this study. Besides the implementation of the proposed photovoltaic system in the Sawmill, has been suggested other practices enumerated in the Rationalization of energy plan, which aimed to improving the management and continuous energy efficiency in the company, such as the implementation of voltage regulators in the engines where failures were detected associated to the startup of the engines, and implementing an energy management system for easy, maximized and continuous monitoring of energy consumption, by the executives.