The national energy and climate plans (NECPs) were introduced by the Regulation on the governance of the energy union and climate action (EU)2018/1999, agreed as part of the Clean energy for all Europeans package which was adopted in 2019. Member States were required to submit their final NECPs by 31 December 2019.
The final integrated national energy and climate plans for 2021 to 2030, as submitted by Member States can be found here: https://ec.europa.eu/info/energy-climate-change-environment/overall-targets/national-energy-and-climate-plans-necps_en