Expedience of Applying Solar and Wind Hybrid Power-plants in Railway Infrastructure Objects

The level of technical development and the diversification of energy sector of Lithuanian Railways, the scale of using of renewable energy sources have been defined in this article. The necessity and expediency of implementation of solar and wind hybrid power-plant in railway infrastructure objects have been reasoned. The methodology for calculation of rational proportion between solar and wind hybrid power-plant potential and electric energy demand, which notable varies during the year, have been proposed by authors. Based on suggested formula have been demonstrated that the wind potential part of solar and wind hybrid power-plant of Lithuanian rolling-stock depots and stations should be about 75%, and the solar – 25%. The procedure applied by authors for determination of proportions of hybrid plant shared power is universal. Finally, basic conclusions and recommendations are given.