As organic materials like wood and sewage sludge are gasified, the chemical process creates a clean syngas, a fuel that can then be used like natural gas. Compared to other waste-to-energy methods like burning, or incineration, the gasification process allows the syngas to be cleaned of contaminants prior to its use. Incineration plants do attempt to clean their emissions, but it is done “post-combustion, making it harder to capture and isolate hazardous emissions. Creating syngas through gasification is almost like closing the circle, or closing the loop, on waste’s lifecycle and maximises the latent energy. The energy embedded in the waste can be used to power engines that generate electricity.