In this article we will discuss how to store photovoltaic energy making our radiant heating system more profitable.
The mode is none other than through batteries for self-consumption.
And what do they consist of? Well, they are simply devices capable of accumulating the electrical energy obtained in excess during the hours of sunlight for its subsequent use. There are currently different models and choosing the right battery depends on some factors. We detail the possible options…
Types of batteries for solar energy
Lead-acid batteries
Also called monoblock batteries, they are one of the easiest to obtain and install and, therefore, one of the most used for self-consumption; Recommended for small spaces such as homes and/or premises.
lithium batteries
They are much more functional regarding their size and weight. They can be installed in any room without taking up much space and, in addition, they offer complete discharges without emitting gases.
deep cycle batteries
They are specially designed to be used daily, since their utility cycle extends up to 7 years. Its installation is extremely useful in places where continuous and powerful downloads are needed, because it is capable of doing them without damaging the battery.
AGM batteries
AGM batteries are a safe and efficient option in spaces with a lot of vibrations. The acid that powers them has a minimal risk of spillage, so they can be easily installed in places that need maximum security.
Which to choose?
Of all these types of batteries we must highlight lead-acid and lithium. Look at the following comparison so that you can choose the most suitable one.
- Lithium batteries are more expensive at first, but if we compare them with lead-acid, the former are undoubtedly more cost-effective.
- Lithium batteries are maintained once a year, while lead-acid batteries must be checked monthly and with water recharges at least 4 times a year.
- Lithium batteries have a charge efficiency of 97%; those of lead-acid, just an 85%.
- It is possible to expand lithium batteries with other models, but in lead-acid batteries it is not recommended to do so.
- Lithium batteries are safer because they don't emit gases, unlike lead-acid batteries that emit corrosive chemicals.
According to these factors, lithium batteries have more advantages than those of lead-acid within self-consumption facilities.
So far, a description of the advantages of installing these types of devices that will enable, even more if possible, the qualities of our underfloor heating system.