![]() ![]() The famous backup toll, which taxed the possession of batteries for self-consumption is now history and buying lithium batteries for self-consumption has become a very profitable option. We remind you that the sun tax is now a thing of the past and that nobody in Spain can charge you anymore for installing a battery in your house to improve your self-consumption. Anyone can finally have their battery on the balcony with its modules facing the sun and generating electricity. With this type of battery, the possibility of having self-consumption with solar lithium batteries in vertical housing buildings is opened. Place it on the wall of the garage, under an attic, in a cabinet with its ventilation rack. With this technology, everything is simplified. The user also finds peace of mind, not having to worry about maintenance, no more checking water levels, or being aware of the density of the electrolyte. Although it is recommended not to exceed 80% of the discharge, this is much higher than the recommendation that is made on the lead-acid batteries, which should not exceed 40% of the depth of discharge. In it, you find an incredible battery endurance up to almost 100% of the stored energy. If you are tired of lead-acid batteries that with intensive use die after a few years (even a year), this is your technology. The most common model is the 48V, but there are 12V and 24V lithium batteries, and various less standard voltages.įrom tienda-solar we recommend the use of lithium batteries for self-consumption because users get a battery that is easy to fit in any room of the house, with a very large technical versatility and without maintenance during a long life, which can exceed 20 years in some cases. But low-voltage batteries are gaining ground on the latter. The high voltage ones, between 200 and 660V, such as the Tesla battery, are used for medium or large installations, as a way of trying to slightly improve the system's performance. Besides, they do not emit gases and are safe in any space in the home, which makes them very easy to install for use as lithium batteries for self-consumption.ĭepending on their voltage, they can be classified as high or low voltage. ![]() They are much lighter, as they have a very high energy density, so they can even be hung on the wall (like the LG Chem or the famous Tesla battery). Lithium-ion batteries are more manageable and fit in anywhere available. This feature also makes it easy to expand existing battery banks, which is almost impossible with lead-acid batteries. This is because LiFePO4s maintain a virtually constant voltage during discharge almost until they are empty, which makes these batteries able to deliver almost all their stored energy until they are completely discharged. Although they have a higher initial price than lead-acid batteries, they are cheaper in terms of stored energy, as their useful life in cycles is much longer and we can discharge them to a greater depth of discharge (DoD). There are many advantages of buying lithium-ion batteries for self-consumption. The most common lithium-ion batteries used as self-consumption lithium batteries are lithium-phosphate batteries, also known as LFP or LiFePo4. ![]()
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