Methodology for assessment of the cost effectiveness
of simple energy efficient investments
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Ukryj
1 |
University of Warmia and Mazury in Olsztyn |
Data publikacji: 12-02-2021
BoZPE 2020;(2):111–119
SŁOWA KLUCZOWE
DZIEDZINY
STRESZCZENIE
The development of energy efficient buildings has been on the increase in recent years.
This trend in architectural engineering reflects both the binding legal regulation and the rational
approach of investors to the construction or refurbishment of buildings. When planning
such an investment, it is necessary to scrutinize the underlying guidelines and the
conditions in which the building will be developed, as well as its future useful life. Economic
analysis of the effectiveness of investments in the building sector employs simple and
discounted methods. Depending on the scope and complexity of envisaged construction
work, it is possible to apply methods from both groups. However, simple methods should
suffice for simple building projects, an example of which will be discussed in the article.
Three variants of planned additional thermal insulation of external walls of a residential building
will be presented. The results of our calculations showed that the payback period for
such an investment would be too long, which is why it is recommended to combine the
thermal insulation of outer walls with some broader measures so as to shorten the time needed
to achieve a good return on investment ratio.