Technology » Notes » Austrian engineers have proposed the use of cable cars to store energy for long periods

  • Austrian engineers have proposed the use of cable cars to store energy for long periods

    Batteries are rapidly becoming cheaper and will soon be able to meet the needs of short-term energy storage for everyday needs everywhere. However, long-term storage does not yet have a universal, cost-effective solution. Accumulative storage facilities , capable of storing energy for a long time, are suitable only for large-scale projects with a capacity of 50 MW or more. For regions where the demand for energy storage is usually less than 20 MW and where the stored energy will be used only in certain months or seasons - for example, small islands or remote areas - such projects are unprofitable.

    Specialists from the International Institute for Applied Systems Analysis (Austria) have developed a technology that is expected to meet the demand for medium-term energy storage.

    They propose building freight cableways on the edge of steep cliffs, where there is an adequate supply of sand or gravel. When there is enough energy, the electric motor lifts the containers with sand up. When it is not enough, the cargo is lowered back, generating electricity

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