Table of Contents ENPHASE ENERGY, INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 13. DEBT The following table provides information regarding the Company’s debt: December 31, December 31, 2023 2022 (In thousands) Convertible notes Notes due 2028 $ 575,000 $ 575,000 Less: unamortized debt issuance costs (5,408) (6,705) Carrying amount of Notes due 2028 569,592 568,295 Notes due 2026 632,500 632,500 Less: unamortized debt issuance costs (4,317) (6,307) Carrying amount of Notes due 2026 628,183 626,193 Notes due 2025 102,175 102,175 Less: unamortized debt discount (5,644) (10,229) Less: unamortized debt issuance costs (568) (1,054) Carrying amount of Notes due 2025 95,963 90,892 Notes due 2023 — 5,000 Less: unamortized issuance costs — (23) Carrying amount of Notes due 2023 — 4,977 Total carrying amount of debt 1,293,738 1,290,357 Less: debt, current — (90,892) Debt, non-current $ 1,293,738 $ 1,199,465 Enphase Energy, Inc. | 2023 Form 10-K | 101