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Combating climate change and reducing greenhouse gas emissions are among the European Union’s priorities today. Direct implementation of these priorities is sustainable buildings. This paper analyzes the energy supply of a health resort building with renewable energy sources in the context of the “BREEAM In-Use” sustainability assessment system. The criteria for the “BREEAM In-Use” scoring system are grouped according to the 3E criteria and recommendations are made for the weights of the 3E assessment system criteria. In accordance with the criteria grouping methodology in the article, in the context of 3E criteria, the maximum weight should reach the energy indicator (about 50%), the second most important one is the ecological criterion, and about 16% should only meet the economic criterion. Santrauka Vieni iš šiandienių Europos Sąjungos prioritetų – kova su klimato kaita ir šiltnamio efektą sukeliančių išmetamų dujų kiekio mažinimas. Tiesioginis šių prioritetų įgyvendinimas – tai darnūs pastatai. Šiame darbe analizuojamas gydyklos pastato energijos aprūpinimas diegiant atsinaujinančius energijos išteklius BREEAM In-Use darnumo vertinimo sistemos kontekste. BREEAM In-Use vertinimo sistemos kriterijai grupuojami 3E kriterijų principu ir parengiamos rekomendacijos 3E vertinimo sistemos kriterijų svoriams. Pagal straipsnyje pateiktą kriterijų grupavimo metodiką 3E kriterijų kontekste didžiausias svoris turėtų atitekti energiniam rodikliui (apie 50 %), antras pagal svarbumą – ekologinis kriterijus ir tik apie 16 % turėtų atitekti ekonominiam kriterijui. Reikšminiai žodžiai: energinis vertinimas, aplinkosauginis vertinimas, pastatas, BREEAM, 3E, darnumas.

Combating climate change and reducing greenhouse gas emissions are among the European Union's priorities today. Direct implementation of these priorities is sustainable buildings. This paper analyzes the energy supply of a health resort building with renewable energy sources in the context of the "BREEAM In-Use" sustainability assessment system. The criteria for the "BREEAM In-Use" scoring system are grouped according to the 3E criteria and recommendations are made for the weights of the 3E assessment system criteria. In accordance with the criteria grouping methodology in the article, in the context of 3E criteria, the maximum weight should reach the energy indicator (about 50%), the second most important one is the ecological criterion, and about 16% should only meet the economic criterion. [ABSTRACT FROM AUTHOR]