Effects of the Disbursement of EU Cohesion Policy 2014–2020 Funds on Improving the Energy Efficiency of Buildings in Poland and Germany

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Improving the energy efficiency of buildings (IEEBs) is crucial to achieving the European Union’s ambitious climate and energy goals. To channel these efforts, new policies, legislation, sources of funding, mechanisms for distributing funds, programs, and support tools are being introduced. The purpose of this study is to demonstrate the effects of the disbursement of EU Cohesion Policy 2014–2020 funds on IEEBs in Poland and Germany, filling the research gap regarding the regional differentiation of investments, beneficiaries, and the spatial distribution of subsidies and projects. An analysis was made of 7818 projects on IEEBs implemented under regional operational programs from European Regional Development Funds under Thematic Objective 4. This research was conducted for two main variables: (1) beneficiaries (8 categories) and (2) investments (8 categories). Based on this division, using a cluster analysis through the use of Ward’s agglomerative hierarchical clustering method, groupings were made in relation to beneficiaries (6 groups) and investments (6 group). The results allowed us to identify regional differences and similarities in the approach to the disbursement of funds on IEEBs, to indicate the main beneficiaries, to highlight trends in this regard, to demonstrate the impact of changes in territorial affiliation on investment targeting, and, furthermore, to capture the variation in the sophistication of the implementation of EU IEEB-related policies and legislation. The results provide a well-documented voice in the discussion of the effects of distributing EU funds for IEEBs in the regions of Poland and Germany and provide a basis for further comparative research.