When locating the small hydropower plants into a certain area, we are facing the legislation
that on one hand promotes the construction of facilities, whose purpose is the generation of
electricity from renewable sources and on the other hand the legislation on the protection of
water resources, habitats etc., which inhibits the building.
The thesis deals with the appropriateness of the location of already existing small hydro
power plant, which verifies the most important parameters influencing the production and the
related profit. These are the run-off regime and the rate of flow of the stream throughout the
year and the gross height difference between level of upstream water behind the dam and
level of downstream water in the suction chamber. All this is covered by the current
legislation, the spatial limits and environmental aspects.
There aren't any facilities on the stream that would allow continuous measurements of water level; therefore the flow duration
curve is constructed on the basis of daily data operating small hydropower plant. High waters
were determined through measurements and observations throughout the year by using the
designed stage-discharge curve. By entering the channel model and a model that simulates
a system of small hydropower plant in the software HEC-RAS, was tested the impact of
fluctuations in upper and lower waters of the gross height difference at different flow rates. At
the given conditions of altitude and discharges the type and size of the turbine system was
selected for maximum utilization of resources and minimal losses on the system.