; and (B) the retail electric supplier’s base quantity for that calendar year. (2) Required annual percentage (A) Calendar years 2019 through 2042 Subject to subparagraph (B), for each of calendar years 2019 through 2042, the required annual percentage shall be as follows: Required annual Year: percentage: 2019 10.0 2020 11.0 2021 12.0 2022 13.5 2023 15.0 2024 17.0 2025 19.0 2026 21.0 2027 23.0 2028 25.0 2029 27.5 2030 30.0 2031 32.5 2032–2042 35.0. (B) Increase authorized for calendar years 2032 through 2042 The Commission may issue orders increasing the required annual percentage amounts for each of calendar years 2032 through 2042 to reflect the maximum achievable level of renewable electricity generation potential, taking into account regional resource availability, economic feasibility, and technological capability. (f) Federal renewable electricity credits (1) In general (A) Issuance; tracking