The aim of the research was to simulate the use of the power potential of water resources in the diversion irrigation system. When solving practical problems on improving the technology of water resources use on the watering and irrigation systems (WIS), a need to model the processes of functional interaction of WIS with natural environments as part of the natural-engineering system “natural environment-watering-irrigation system-population” emerged. Such models can have different types, from purely physical ones when studying the interaction processes of various types of hydraulic structures with water flow to purely mathematical ones when modeling different versions of technological schemes for the functioning of the environment. As a result of the system analysis with the convergent approach to the assessment of the impact of environmentally acceptable functional and design characteristics of the WIS within the considered area of basin geosystem the direction of improving the technology of using water resources on irrigated lands was determined. By the example of calculating the diversion irrigation system on an area of 3106 hectares (in the Petrovsky district of the Stavropol Territory), where 42 sprinklers are located, it is found that according to the variant of placing the small scale hydrapower unit (HPP) on sprinkling equipment, 42 micro HPPs of 10 kW(each hydroelectric unit), the total capacity will be 420 kW. By the second variant, with the installation of a small HPP on the supply main pipeline, two generating units will be required, including one emergency (spare) power, each of them will have a power of 450 kW (taking into account the pressure losses on the hydroelectric units).
Key words: modeling, power potential, water resources, hydroelectric power station, micro hydropower station, daily runoff pool, hydraulic structures, diversion, irrigation system.
