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SEME, S., ŠTUMBERGER, G.
EFFICIENCY OF SILICON SOLAR MODULES AT DIFFERENT CLIMATIC CONDITIONS
KOMUNALNA ENERGETIKA / POWER ENGINERING, 7
This paper deals with the impact of different climatic conditions on the efficiency of silicon solar modules. The mono-crystalline, the poly-crystalline and the amorphous silicon solar modules are compared. According to the measurements of IU characteristic of the solar module and solar radiation, the efficiency of individual silicon solar modules has been determined. It is shown that the efficiency as a function of different climatic conditions for a silicon solar modules varies considerably. Slowly increasing efficiency characteristic as a function of intensity of solar radiation is shown in amorphous silicon solar modules, while the poly-crystalline and mono-crystalline silicon solar modules, this characteristic is flat.
SUKIČ, P., DREVENŠEK, D., BELIČ, E., ŠTUMBERGER, G.
EFFICIENCY OF INVERTERS IN SOLAR POWER PLANTS WITH REACTIVE POWER GENERATION
KOMUNALNA ENERGETIKA / POWER ENGINERING, 14
The paper discusses possibilities for reactive power generation using inverters for solar power plants. Measurements performed on an inverter for solar systems were performed for different values of generated active and reactive power in order to determine the efficiency characteristic. The obtained characteristic is approximated with a surface. It is applied to evaluate increase of inverter losses due to reactive power generation as well as to evaluate the potential of inverters in solar power plants for reactive power generation.
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