1 Exhibit 12.1 NRG South Central Generating LLC Consolidated Ratio of Earnings to Fixed Charges For the Period For the Period March 30, 2000 March 30, 2000 (Inception) (Inception) to June 30, 2000 to September 30, 2000 ---------------- --------------------- (In thousands) Earnings: Income before taxes $ 5,597 $12,515 Add: Fixed Charges 18,861 37,598 ------- ------- 24,458 50,113 ------- ------- Fixed Charges: Interest expense 18,758 37,405 Amortization of debt costs 103 193 ------- ------- $18,861 $37,598 ------- ------- Ratio of earnings to fixed charges 1.30 1.33