Abstract: The author studied in detail the aspects of cooperation between Russia and Brazil in the field of green energy. In this context, Russia and Brazil, as countries with vast territories and rich natural resources, have a special potential for developing the green energy sector both within the framework of each country's energy policy separately and in bilateral cooperation. Both countries are expanding the possibilities of using various types of renewable energy sources, and therefore cooperation between these two states can become an important factor in promoting this direction in global realities. The countries are actively strengthening cooperation within the framework of the BRICS, because one of the relevant topics on the agenda of the association is precisely cooperation in the field of green energy and the economy. The partnership between the two countries not only contributes to achieving carbon neutrality, but also creates favorable conditions for further economic growth. The main research method is system analysis, which reveals the components of the countries' cooperation policies in the field of green energy, and the green energy of Russia and Brazil are considered separately. A geo-economic approach was also used to identify the dependencies of the development of low-carbon markets in Russia and Brazil on the common agenda of such an association as the BRICS. The scientific novelty of the study lies in an extensive analysis of cooperation between the Russian Federation and Brazil in the field of green initiatives, including the creation of low-carbon markets, the use of renewable energy sources, as well as the promotion of climate and carbon-neutral initiatives of the two countries through the BRICS. The article examines this aspect of cooperation between the two countries, since when analyzing energy cooperation between Russia and Brazil, researchers more often focus on carbon energy resources. The two countries are strengthening cooperation in the field of green innovation, creating joint projects in the field of nuclear and hydrogen energy and contributing to the sustainable development of the two countries. The countries are actively strengthening cooperation within the framework of the BRICS, because one of the relevant topics on the agenda of the association is precisely cooperation in the field of green energy and the economy. The partnership between the two countries not only contributes to achieving carbon neutrality, but also creates favorable conditions for further economic growth.

Abstract: The issue of energy security and energy independence of the EU is one of the key factors in ensuring the stable development of the association. The subject of the study is the energy concepts of the European Union. The object of the study is the modern energy policy of the EU countries. The countries of the European Union are among the world's largest importers and exporters of energy resources, and therefore one of the criteria for EU energy security is the creation of secure logistics chains for uninterrupted energy supplies, since this factor has always been one of the most important problems in energy security. However, despite all the data that the European Union has, this area is a source of numerous problems for ensuring energy security that the EU faces at the current stage of its development. The methodological basis of the study is a systematic analysis and a geo-economic approach. The systematic approach was used in the work to identify the reasons for the transformation of EU energy concepts in the context of the energy crisis. The geo-economic approach allows us to qualitatively consider this issue from the point of view of economics and geopolitics of the countries of Eastern and Western Europe in the context of energy transition. The novelty of the research lies in the comprehensive analysis of the concept of energy security in the complex in the context of energy transfer. The authors pay special attention to the analysis of the energy policy of the European Union, numerous new initiatives and documents related to this area, as well as the development of the concept of green energy. The authors highlight the challenges that the EU will face on the way to building a stable and safe energy sector. The paper also examines the impact of the EU's energy policy on the concept of European unity. Attention is being paid to the EU's attempts to diversify energy supplies, which plays an important role in the context of the Ukrainian crisis and complications from the loss of Russian supplies. The authors conclude that the lack of internal unity within the EU does not allow for an effective and sustainable energy policy, since the European Union does not have a common energy legislation, and infrastructure development between the countries of Western and Eastern Europe is overly diversified, which does not allow us to talk about the transformation of energy policy in the EU countries at the present stage.