EXHIBIT 21 Significant Subsidiaries of PSEG Energy Holdings L.L.C.(A) Subsidiary Jurisdiction of Incorporation or Organization ---------- --------------------------------------------- PSEG Resources Inc. New Jersey PSEG Global Holding Inc. Cayman Islands PSEG Global Inc. New Jersey PSEG Global USA Inc. New Jersey PSEG International Inc. Delaware PSEG Americas Inc. Delaware PSEG Americas Ltd. Bermuda PSEG Global International LLC Delaware - ---------- (A) PSEG Energy Holdings L.L.C. is the successor to PSEG Energy Holdings Inc. On October 1, 2002 PSEG Energy Holdings Inc. was merged into PSEG Energy Holdings L.L.C.