Abstract
The paper investigates the issues of feasibility study of energy-saving measures. It is proposed to revise the traditional approach to assessing the efficiency of capital investments in the projects of reconstruction of residential facilities, aimed at implementation of energy-saving solutions. A special feature of an assessment of the efficiency of thermal modernization of buildings is the forecasting of future tariffs for energy carriers, the level of which directly depends on the macroeconomic situation both in the country and in the world, which makes the reliability of the estimate difficult. The author suggests using average forecasted tariff rates depending on the value of the discount rate, as well as the effect and payback period of costs not only for the investor, but also for the consumer of thermal energy, consisting in the amount of saving financial resources for the estimated operation period of thermal engineering measures.
Highlights
One of the key problems restraining the implementation of the state energy saving policy is the absence of a unified methodological approach to a comprehensive assessment of the economic efficiency of the use of energy-saving technologies
Most of the scientific papers dedicated to the study of the issue of thermal modernization of buildings relied on an income method for assessing the efficiency of investments, which is based on the following dependence: IIII(1 + rr)tt = SSSS + SSSS(1 + rr) + ⋯ + SSSS(1 + rr)tt−1 (1)
Using formulas (2) and (3), instead of the value of ∆DD we introduce the variable value of intermediate incomes SSSS(1 + dd), determined on the basis of the forecasted dynamics of the change of tariffs for thermal energy (d): NNNNNN =
Summary
One of the key problems restraining the implementation of the state energy saving policy is the absence of a unified methodological approach to a comprehensive assessment of the economic efficiency of the use of energy-saving technologies. The general methodologies for assessing the energy-saving measures are aimed at calculating the overall economic effect that the municipal and regional economies receive as a result of a reduction in capital investments in energy generation, and the assessment of the consumer effect remains uninvolved. Based on the theory of the money value over time, this approach has become very popular due to the simplicity and clarity of mathematical operations. The disadvantage of this approach is that the assessment of the result of investing in energy-saving technologies will refer to the future period of time, and not to the current one [3]
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