The need for modern infrastructure as a prerequisite for sustainable development, poverty alleviation, and improvement of the quality of life of the population is a global problem that requires searching for and attracting large amounts of long-term investments. The presence of this problem in recent decades has led to the increasing implementation of complex and costly infrastructure projects through the public-private partnership (PPP) mechanism with high potential for attracting investment. This mechanism, in conditions of limited financial opportunities, allows one to combine the financial resources of the public and private parties for the implementation of major infrastructure projects. The limited use of existing tools at different stages of PPP projects and the increasing need for additional resources make it necessary to consider the possibility of using digital tools that complement traditional ones. For this purpose, the authors analyze existing financing tools, revealing their advantages and disadvantages, and identify and justify the possibility of using digital tools in the implementation of PPP projects. However, digitalization includes not only financing tools but also the development of infrastructure, including digital platforms needed to conduct such operations in the digital environment. As a result, a combined financing toolkit can be formed for each phase of project realization, including traditional and digital tools. The results of this study will become a basis for revealing the directions of the digital transformation of the PPP mechanism.

The article deals with the problems of implementation of public-private partnership programs in the energy sector aimed at ensuring the sustainable development of macro-regions. It is determined that in the financing of PPP energy projects, the World Bank institutions evaluate the projects for the selection of the most effective and ready for implementation, based on a variety of criteria. This assessment gives priority to projects that are based on renewable energy sources and those that are more environmentally friendly. The problems and uncertainties associated with the implementation of PPP projects in the energy sector are identified.

The article deals with the state of public-private partnership in the field of waste management. The concept of waste was given, and the importance of managing the waste management system was justified, taking into account the resource orientation of many regions of the country. Legislative changes forming a new system of waste management are reflected. The author presents the dynamics of growth of waste generation, as well as their utilization and disposal in Russia. The main areas of expenditure related to the implementation of projects in the field of waste management were Identified. The problems of implementing these costs in the implementation of projects are highlighted, first of all, the lack of sources of funding for both the state and private business. The concepts of public-private partnership and the mechanism of its implementation, given by different authors, are considered. It was found that cooperation between the state and the private sector in this area has not yet been sufficiently developed, and only in the field of solid waste management. Projects in the field of production are not implemented. It is noted that the main initiator of the projects is the state, private business is not sufficiently interested in implementing projects in the field of waste management in the form of public-private partnership. The main forms of implementation of PPP projects, stages of implementation of projects and their degree of development in the Federal districts of the Russian Federation are considered. It was revealed that the projects do not use debt financing, which indicates a weak interest of banks in this sector of the economy in view of significant investments, long payback period of projects and the risks of their implementation.

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<span>В статье рассматривается специфика становления и развития механизма государственно-частного партнерства (ГЧП) в Тюменской области. По мнению авторов, сотрудничество региональных властей с частным капиталом длительное время осуществлялось и до сих пор зачастую продолжается в виде проектов квази-ГЧП, которые хотя и выполняют похожие функции, в полной мере не могут быть отнесены к государственно-частному партнерству. Особенностью большинства таких проектов, реализуемых в Тюменской области, является их принадлежность к ресурсодобывающей отрасли. Наиболее распространенные в РФ инфраструктурные проекты в жилищно-коммунальной, социальной и энергетической сферах в Тюменской области стали появляться по мере формирования законодательства о государственно-частном партнерстве и на сегодня получили довольно широкое распространение в трех секторах экономики: жилищно-коммунальном хозяйстве, энергетике и социальной сфере.</span>