NRG · 10-Q · 2026Q3 · Full report

Interest Expense Increase

NRG ENERGY, INC. · 2026-11-09 · Importance 75 · Surprise 64

Interest expense for the nine months ended September 30, 2026 increased $399 million, or 80.1%, to $897 million from $498 million. Third-quarter interest expense rose $115 million to $302 million from $187 million. Total other expense for the nine-month period increased to $863 million from $478 million.

Key facts

• Interest expense increased $399 million in the nine months ended September 30, 2026 compared with the same period in 2025, primarily due to the LSP Portfolio acquisition, acquisition financing, assumed Lightning debt and refinancing activity. source
• Interest expense increased $115 million in the three months ended September 30, 2026 compared with the same period in 2025, primarily due to the LSP Portfolio acquisition, acquisition financing and assumed Lightning debt. source
• NRG entered into treasury locks with a total notional amount of $ million in February 2026 and fully terminated them in March 2026. source
• As of September 30, 2026, NRG had interest rate swaps extending through 2029 to mitigate the floating-rate risk of its Term Loan B; the notional amount is not stated in the text. source