The European Union has taken significant steps in strengthening green energy cooperation among its member states, creating an enabling environment for the transition to sustainable energy. This initiative aims to reduce greenhouse gas emissions, accelerate innovation, and ensure energy security for all members. Under the European Union’s Energy Policy, member states are committed to achieving ambitious emissions targets, with the aim of reducing carbon emissions by at least 55% by 2030 compared to 1990 levels. To achieve this, cooperation in the development of renewable energy technologies is key. Solar, wind and biomass energy are some of the sources focused on in this collaboration. Cross-border projects, such as the construction of offshore wind parks, are attracting great attention. By harnessing the rich natural resource potential of coastal countries, this project will not only provide clean electricity, but also create new jobs. For example, the WindEurope initiative seeks to increase wind power generation capacity to 300 GW by 2030. The Horizon Europe program funds research and innovation in green energy technologies. With a budget allocation of €95.5 billion, this program enables collaboration between universities, research institutions and industry. The main focus is creating smart solutions for energy storage, energy efficiency and smart grids. In terms of policy, the European Union introduced the Green Deal, a strategic document that emphasizes the transition to a green economy. This policy not only covers energy, but also the transportation and industrial sectors. Efforts to reduce dependence on fossil fuels are a priority, with incentives for research and adoption of renewable energy. One key opportunity is investment in green energy infrastructure and a more integrated electricity grid. Through the INTERCONNECT project, the European Union seeks to improve connectivity between electricity networks across the continent. This will enable the efficient distribution of renewable energy, encouraging the use of clean energy. The success of this collaboration was also marked by the participation of the community and the private sector. Awareness of the importance of sustainability encourages individuals and companies to embrace green energy, as well as invest in environmentally friendly technology. Awareness-raising campaigns are held regularly to support this cause. Furthermore, the European Union plays an active role in carbon trading. This mechanism allows member countries to exchange emissions, providing incentives for overall emissions reductions. This system encourages companies to invest in green technology and lower their carbon footprint. An integrated approach to green energy cooperation creates a strong foundation for the future. Member countries’ commitment to collaborate, invest and innovate is key to the success of a sustainable energy transition. With concrete steps and supportive policies, the European Union is on track to become a pioneer in global green energy.