of renewable energy two of the most important sources wind and sun Unfortunately, it does not always provide the desired energy. Energy can be produced from these two sources only at certain times. Therefore, energy storage is of great importance. storing energy There are various batteries and methods for it.
Sand batteries work very efficiently
Each storage method It has several advantages and disadvantages such as efficiency, size, location, installation costs, operating costs, lifetime and how long it can store energy. One or more of these methods to environmental factors can be chosen accordingly.
Hydroelectric power stations are getting much more efficient!
Basically a type of hydroelectric power plant, this water battery consists of two large pools at different heights.
Now is energy storage A new one has been added to the methods. The company called Polar Night Energy is the first commercial purpose in Finland. sand batteries started using it. The foundation of this system is an insulated building approximately 4 meters wide and 7 meters high. steel tank forming.
shiftdelete.netthermal energy The storage system is made with a simple heat exchanger buried in the middle of the sand. this system 500-600 degrees rated power of 100 kW when heated up to 8 megawatt-hours becomes an impressive reservoir of energy. When this energy is needed, it is also used in the same way. as heat can be revealed.
Stored heat is used to conduct heat around the area. district heating system will be used for feeding. If the system is then buildings and pools It can also be used for heating. It also requires heat industrial processes Again, this system can work.
This system, which is used in more than one place, thus becomes very efficient. Polar Night Its CTO, Markku Ylönen, uses the following statements about sand batteries:
It’s really easy to convert electricity into heat. But you need turbines and more complex things to go back from heat to electricity. As long as we only use heat as heat, the process is really quite simple.
The company’s new systems an efficiency of up to 99 percent it claims to offer. months with minimal loss heat storage These sand batteries, which have the ability to be used, can be used for many years. The company says that the sand they use should be dry and free of combustible residues. Other than that, it’s about sand. a special occasion it is stated not.
operating cost This system, which is kept to a minimum, seems to be quite efficient. Of course, this system, which has a limited area of use, may not be suitable for every business. However, this heat coils It is a fact that they do their job quite well.
So what do you think about energy storage in sand? Do you think it is an efficient method? You can share your views with us in the comments section.