Ko te reactor kei runga i te pākahiko SOFC ngongo papatahi, koinei te waahanga matua o te wahie waikura totoka hanga hiko pūtau. Hei waahanga whakaputa hiko, he hohonu ake te hanga o te pākahiko hollow, he pai ake te hau kiki, utu ngawari ake, he pai ake mo te hokohoko.