Anyone who is committed to climate protection will not only be concerned with the topic of "production of environmentally friendly electricity", but also with the storage of energy. For example, surplus solar power is stored in so-called energy storage systems so that it can be withdrawn and used at another time and as needed. Energy storage for electricity produced from wind or sun is essential because electricity is produced irregularly and in varying amounts due to changing weather conditions. For example, the wind blows more strongly on some days than on others and the sun shines at different strengths during the seasons.Energy storage systems are temporary storage facilities for the energy produced. Many homeowners are already familiar with solar energy storage systems. These store the excess solar power generated from the photovoltaic system. So it can be used by the homeowners at a later time. Nowadays, battery storage systems are often used in private households instead of solar power storage systems. These are technically advanced and also quite affordable in terms of cost. If battery storage is used for private purposes, lithium-ion batteries are particularly suitable. This is because they achieve a greater effect than the standard lead-acid batteries. If the electricity is generated by wind energy and produced in large quantities, there is also the possibility of feeding it into battery storage.
For this storage process, batteries are taken from old and discarded electric cars. If these are combined to form a large-scale storage system, they feed in large amounts of energy. Another advantage is that the batteries and their valuable raw materials can be reused when the electric car is no longer in use. Pumped-storage power plants and compressed-air storage systems also make a significant contribution to the energy transition. The somewhat more complex "power-to-gas" natural gas storage process is also suitable for feeding large quantities of electricity into the grid. In this process, excess electricity produced is fed into the natural gas grid and can also be used, for example, to produce electricity for power plants.
Source: EnBW
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