Waste to energy (WTE) is a process that converts municipal solid waste (MSW) into electricity, heat, or fuel. WTE reduces the volume of waste by up to 90%, and prevents the emission of greenhouse gases from landfills. WTE also reduces the dependence on fossil fuels and contributes to energy security and diversity. WTE plants use various technologies to convert waste into energy, such as incineration, gasification, pyrolysis, anaerobic digestion, and landfill gas recovery. WTE plants can also recover valuable materials from waste, such as metals and plastics, for recycling. WTE is a sustainable and environmentally friendly solution for waste management and energy production.