NEW YORK--(BUSINESS WIRE)--Fitch Ratings has affirmed the foreign and local currency Issuer Default Ratings (IDRs) of Empresa Nacional de Electricidad S.A. (Endesa Chile) at 'BBB+' and its long-term national scale rating at 'AA(cl)'. In addition, Fitch has affirmed Endesa-Chile's short-term national scale rating at 'N1+' These rating actions affect approximately USD917 million of outstanding Yankee bonds and USD546 million of domestic bonds. The Rating Outlook is Stable. Fitch also affirmed End