The aim of the contribution is to focus on the conflicts arising between climate-related renewable energy goals vis-a-vis environmental protection interests. To this effect, the analysis will firstly investigate the origin of such types of conflicts, which may also be named intra-environmental conflicts, and define their main characteristics; secondly, the regulatory choices made by the RED II and the RED III Directives to manage these conflicts will be presented and compared, with a particular focus on the three key features of the recently approved RED III Directive; thirdly, an alternative approach to address such types of conflicts will be proposed. This is based on the principle of integration, to be interpreted with an ecological sustainability reading of the principle of sustainable development.