<prompt> Translate the following text to EnglishKwa kuongezea, baadhi ya vitengo vya sasa na vipya vya kuzalisha pamoja ni huru, pamoja na vitengo vya kuchoma taka ngumu na vitengo vya matibabu, kuhifadhi, au kuondoa taka hatari.  <response>: In addition, certain existing and new cogeneration units are exempt, as well as solid waste incineration units and units for treatment, storage, or disposal of hazardous waste. 