An incineration plant burns waste at high temperatures to generate heat. The heat makes steam which drives turbines to generate electricity. In this way, a WtE plant turns municipal and industrial solid waste into electricity and/or heat. The mass reduction of this process is more than 99%. The left over materials, such as bottom ashes, can be reused or disposed in a safe way.
The technology should be evaluated on availability, efficiency and (GHG) emissions
The more energy you can produce from residual waste the cheaper the solution will get, but also the more GHG emissions you can reduce. The technology provides a baseload for the electricity grid what normally is produced by coal fired power plants. So, in principal you will replace coalfired baseload production.