<prompt> Translate the following text to EnglishKwa ujumla, muda wa jumla unaohitajika kukamilisha kubuni, usakinishaji na majaribio katika kituo cha kawaida cha 500MW na kitengo kimoja cha FGD ni miezi 27, miezi 32 katika kituo cha boilers mbili zinazotumika na moduli moja ya absorber, na karibu miezi 36 katika kituo cha modules tatu za absorber.  <response>: In summary, the total time needed to complete the design, installation, and testing at a typical 500 MWe facility with one FGD unit is 27 months, 32 months at a facility with two boilers being served by a single absorber module, and approximately 36 months at a facility with three absorber modules six boiler units. 