Biotrend Energy, an affiliate of Doğanlar Holding, was established in 2017 with the aim of investing in alternative energy generation, as well as becoming a technological production and application center. As of the end of March 2022, Biotrend Energy has a total of 18 operational plants -including both pre-licensed ones and the ones in investment phase- namely; 15 biogas, 2 biomass and 1 waste fuel preparation and supply plants.18 operational plants in 11 provinces in 6 regions meet the energy needs of hundreds of households through solid-to-energy process.