We cannot imagine modern life without a constant supply of energy, particularly electricity. This thesis addresses the problem of storing electricity generated from renewable sources. These sources are not always available, and their output is difficult to predict reliably. Due to the irregular production of electrical energy, we are seeking various options for efficient storage and subsequent consumption. In this thesis, we compare electrical and hydraulic energy storage systems. The methodology is based on calculations of the hydraulic storage system and an economic analysis of the stored energy. The results show that electric battery systems have a shorter lifespan and lower investment costs, while hydraulic storage systems have a much longer lifespan and very good recyclability, but significantly higher investment costs.
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