Introduction:

Several factors are identified in the raw sugar mill that increase energy consumption and introduce technical, economic and environmental risks

Objective:

To evaluate the energy system through the application of energy management systems.

Materials and Methods:

The energy review included the application of traditional methodologies for the thermo-energetic balance and the use of Sistema Termo Azúcar 4.1 software according to the Cuban Standard ISO 50001.

Results and Discussion:

An energy baseline is established, which allows the industry in a comparative way assess energy performance of the process.

Conclusions:

The use of STA 4.1 software in the studied industry constituted a useful, practical and reliable tool for analyzing the energy system. High level of technology obsolescence and poor condition of thermal insulation constitute the main technology deficiencies of industry. The economic benefits obtained with the modification of generation and cogeneration system and thermal insulation rehabilitation justify the proposal of three investment projects that contribute to increase the efficiency in energy use, whose recover investment is estimated in 3 years.

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