<prompt> Translate the following text to EnglishKwa mfano, kwa kiwanda cha 500MW, tunahitaji tani 175 za chuma ili kuanzisha mfumo wa ACI, au tani 0.35 kwa kila MW.  <response>: From Chapter 4, a 500 MWe facility will need about 175 tons of steel to install an ACI system, or about 0.35 tons per MWe. 