Why powerful cooling is essential in battery containers
The share of electricity generated from renewable resources is growing steadily - especially in the European Union. However, since sun and wind are not permanently available, the challenge lies in balancing out the natural fluctuations in electricity output. The remedy is connected batteries with associated cooling.
Consistent temperature increases efficiency and service life of batteries
Lithium-ion batteries, which are directly connected to solar parks, wind power or hydroelectric plants, for example, and often have a storage capacity of more than 1,500 kilowatt hours, have a central task: they are supposed to keep the setpoint of the electricity grid frequency at a permanently constant level, compensate for natural fluctuations and thus feed in the generated electricity flexibly and quickly in a way that is suitable for the grid and the system.
Since batteries quickly lose efficiency and service life with regular temperature fluctuations of 10 °C, permanent cooling of the batteries is essential. So-called battery containers, in which the batteries are placed together with the cooling unit for continuous operation, have proven themselves in practice. In order to keep the temperature in the battery container at a constant level, when looking for a suitable device, one should not only pay attention to its cooling capacity, but also to a heating function, in case the battery container is used in places where cold temperatures prevail at night or in winter and thus favour temperature fluctuations.
Environmentally friendly battery coolers for use under extreme environmental conditions
Dust can also impair the service life of a battery container's electronics affected. Deserts or steppes are popular locations for solar parks. Due to the strong winds that often prevail there, dust grains find their way into the interior of the containers and accumulate. This can lead to technical faults or even failures. The solution to this problem is continuous air circulation. Cooling units in combination with air filters can treat the polluted air and remove unwanted substances out of the container interior or away from the sensitive electronics. Since 2014, the regulations within the EU have been significantly tightened to reduce the proportion of fluorinated greenhouse gases. For this reason, when choosing a suitable battery cooler for use in the EU, it is essential to ensure that the unit uses a refrigerant that complies with the law.
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