Evaluation and opportunities for energy savings in a company in the telecommunications sector using ISO 50 001

In the last decade our planet has been declared in a climate emergency caused by the environmental impacts associated with different industrial activities and the inefficient use of energy. The telecommunications sector is no stranger to this reality, its growing energy demand is directly related to the increase in greenhouse gas emissions. Through ISO 50 001: 2018, energy efficiency is considered the second alternative to mitigate environmental impacts and improve the efficient use of energy in different industries worldwide. This descriptive research develops the energy planning phase in a company of the telecommunications sector in Cuba. The areas of higher consumption were identified by means of Pareto diagrams for energy sources, control diagrams for consumption and production, an energy baseline is proposed and the energy performance indicator is determined. The energy carriers of electricity and diesel were the most representative with 85% of total consumption, the area with the highest consumption of electricity is associated with the second administrative floor with 75.34%, air conditioners represent 66.44% of the total consumption of electricity in the company. A baseline is established by relating the kWh/m2 ∗ DG indicator. The energy reduction proposal is through an analysis of the replacement of 350 fluorescent tubes with LED technology to reduce by 1,190.24 kWh/ month and $2,856.34 per year, for a payback period of 1.3 years. Energy efficiency is the sustainable alternative to have an efficient use of energy in the telecommunications sector and reduce environmental impacts.