Our project named AGR Hybrid Power: system for the use of alternative fuels in tractors deals with the development of new powertrain technologies and the improvement of the fuel consumption of medium tractors from 51.5kW to 58.1kW - Kilowatt, considering the participation in Brazilian agricultural activity, fuel distribution logistics in Brazil and environmental factors. It is possible to notice a huge growth potential associated with lower agricultural costs, improved energy efficiency in operations, reduced environmental impacts and higher accessibility to renewable fuels. Considering feasibility studies, benchmark, reverse engineering, agricultural requisitions, development research, and other engineering tools, this work highlights the factors which determine how an innovative solution based on ethanol-powered, renewable fuel, and an electric plug-in hybrid series powertrain system can be achieved along with a huge potential to generate larger energy efficiency, superior to the installed diesel tractors. An energy efficiency comparison was done between a diesel-powered farm tractor and the proposed electric ethanol hybrid system, both available from the same power and operating demand. The analysis was done utilizing the simulation of both powertrain systems and energy calculations already performed by companies in the agricultural industry. Analysis of energy efficiency improvement and fuel consumption present an electric ethanol hybrid solution and explains its feasibility. The innovative concept of this project presents technical discrepancies about vehicles inspired by megatrends and the use of renewable fuels, decreasing the usage of Diesel and boosting the usage of powertrain electrification. Therefore, offering superior quality solution, better maintenance and decreased fuel consumption for the consumer, furthermore, benefits the environment.