The thesis investigates the possibilities and advantages of using renewable energy sources (RES) for the production of technological steam in different industries. The requirements to reduce dependence on fossil fuels and implement the energy transition to RES require significant financial investments in industry to achieve the complete decarbonization of the industrial sector. The first part of the thesis provides an overview of the current state of energy consumption in the industrial sector and assesses the potential of alternative energy sources that can be implemented for different industrial thermal needs. A techno-economic analysis of the profitability of operating different systems using RES is conducted, including a biomass boiler, an electric boiler, a heat pump, and a gas boiler as representative of fossil sources. The techno-economic analysis is done for different weekly profiles of technological steam consumption to compare the profitability of these systems under different operating conditions. The analysis showed that there is a significant potential for the introduction of RES into systems for the production of technological steam. However, their ultimate profitability depends on a number of factors, including the movements of electricity prices and fossil fuels. By reducing the ratio of electricity prices to fossil fuel prices, RES systems become significantly more competitive and profitable on the market. In the second part of the thesis, a mathematical model of a selected configuration of a high-temperature heat pump is modeled and the impact of different control strategies on the efficiency of operation under different operating conditions is analyzed. The difference between a heat pump with one compression stage and a heat pump with enhanced vapour injection is compared. For smaller differences between the temperatures of the heat source and the heat sink, a single-stage heat pump gives good results. For large temperature differences between the heat source and the heat sink, a heat pump with enhanced vapour injection allows for a significant increase in the efficiency of the system, which reduces the total life cycle cost of operation and makes the heat pump a more profitable option.