In the last few years the energy scenario in Brazil has undergone a lot of variations, of electric energy pricing or availability of power generation due to lack of rainfalls or deficiencies in the conclusions of projects of power plants or transmission lines in Brazil. Industries are increasingly seeking new sources of electricity generation not to be influenced by rainfall uncertainties, such as variations in the levels of reservoirs of power plants and consequent variations in energy prices and application of tariffs. The main benefits of these new sources are: Independence in a small way of industrial energy electrical consumption generated internally and its known cost, which aid in the provisions and ingredients of annual budgets and cash flow. Their disadvantages are: the necessity for the total cost of generating electricity internally be cheaper than an acquisition of the electric power itself along with a dealership and training of a maintenance team to be able to provide support and repairs on the equipment. In this study, a formaldehyde-producing industrial plant was selected, with the objective of increasing its energy efficiency and reducing its fixed cost through the internal generation of electric energy by means of a steam turbine connected to an energy electrical generator. The steam is produced by cooling the exothermic reaction that occurs in the main formaldehyde reactor, the supply is constant and parallel to the operation of the plant. Currently, the unit's vapor pressure reduction to the general low-pressure network is available through a valve, wasting energy. One of the consumers of this steam is positioned next to the formalin plant and can receive the remaining unconverted energy into the turbine for its operation. The "International Measurement and Performance Verification Protocol" (IPMVP) was used, with the "D - Simulation Calibrated" study option, since the data collected from the electric power consumption for the study have a baseline raised through and the implementation of the "Energy Efficiency Action" (ESA) will take place in the future. Thus, the economy will be estimated through calibrated simulation software called EES, indicating the maximum possible energy to be generated by the turbine and returned to the plant to evaluate the generated economy. Finally, the implementation was feasible, as the initial consumption of the plant was 522 kWh, the unit becomes more efficient with the theoretical installation of the equipment having its consumption reduced to 325 kWh, 37% less. The profitability and risk indicators, both the net present value of R $ 2,525,641.93 and the internal rate of return of 39.74% with a discounted payback of 76 months also indicate the viability of the project.