Due to the need for harmonization of the Croatian legislation with Directive (EU) 2018/2001 of the European Parliament and of the Council of 11 December 2018 on the promotion of the use of energy from renewable sources and Directive (EU) 2019/944 of the European Parliament and of the Council of 5 June 2019 concerning common rules for the internal market in electricity and amending Directive 2012/27/EU, the Law on Renewable Energy Sources and High-Efficiency Cogeneration was adopted and entered into force on 23 December 2021.

The Law regulates issues that are important for the implementation of energy transition to the use of renewable energy sources, thus regulating the framework for promoting the use of renewable energy in a sustainable way, planning and encouraging production and consumption of electricity produced in production plants using renewable energy sources and high efficiency cogeneration and incentive measures for the production of electricity using renewable energy sources and high-efficiency cogeneration. The implementation of the system for stimulating the production of electricity from renewable energy sources and high-efficiency cogeneration is also regulated, as well as financial support for electricity produced from renewable energy sources and high-efficiency cogeneration for own needs.

In addition, the Law prescribes rules on administrative procedures and information and training through new educational and retraining programs, regulates the maintenance of the register of renewable energy sources and high-efficiency cogeneration for projects, project promoters and privileged producers of electricity from renewable energy sources and high-efficiency cogeneration, the issue of guaranteeing the origin of renewable energy, the issue of international cooperation in the field of renewable energy sources, as well as criteria for sustainable reduction of greenhouse gas emissions and other issues of importance for the use of renewable energy sources and high-efficiency cogeneration.

In addition to the already introduced term of production facilities of the self-sufficiency users and customers for own needs, the Law extends to new participants in the electricity market, thus defining consumers of own energy from renewable energy sources and consumers of own renewable energy who act jointly and regulates the possibility of their participation in support programs under equal terms with other participants. The current law is being expanded in such a way that citizens living in apartments will be able to use the possibilities prescribed by law for consumers to the same extent as households in family houses.