Ключевые слова: alternative energy, anaerobic, anaerobic fermentation, anaerobic reactor, biodigester, biogas, biogas plant, biogas plants, biogasanlagen, biomass, digester gas, electricity, energy, energy carriers, energy company, energy crops, energy demand, energy form, energy industry, energy issue, energy policy, energy production, energy source, energy supply, energy technology, energy trade, energy transition, environmentally friendly, farm, fermentation, generation, geomembrane, green, greener, hdpe, lagoon gigester, livestock, natural energy, natural gas, natural resources, renewable, renewable energy, renewable energy sources, resources, supply of energy energy,