RESUL, Equipamentos de Energia, SA has been an ISO 9001 certified company since December 2003, maintaining certification since that date. With the growth of the department dedicated to photovoltaic solar projects, RESUL decided to include it in the certification of the quality management system, which was successfully awarded. It is yet another confirmation of the bet on the sector and the work developed by the company, which continues to guarantee the quality of its products, its services and the satisfaction of its customers. This certification represents national and international recognition for the quality of the work developed, since ISO 9001 ensures good management practices and relationships between customers and suppliers. In addition, it enables greater development of employees, serves as a lever in the search for quality, provides conditions for greater competitiveness in the market, process optimization and cost reduction.