Earth Friendly Technologies
Innovation that brings new life in the field of ENERGY STORAGE SYSTEMS
Energy Storage Systems are an integral part of the smart grid and are essential for its proper function. As the number of decentralized sources increases, so does the importance of Energy Storage Systems. They can be implemented in the production, distribution and consumption of electricity.
When the frequency fluctuates above or below specified ranges, and Energy Storage System uses so-called primary regulation to automatically stabilize it. In seconds. Wherever, whenever.
Overvoltage and undervoltage can lead to turbine disconnection or cogeneration. Voltage regulation can prevent this. A Energy Storage System increases the resistance of rotation machines to the adverse effects of the central network.
If a power plant has no island mode available, it too can be affected by power outages when the main and backup sources fail. In such cases, a third source is required to restore operation. A Energy Storage System can provide power immediately, without delay.
Thanks to ramping control and soft start in another source (e.g., turbine, cogeneration, diesel generator) can be changed into a hard start. A Energy Storage System uses its own batteries to compensated for the soft start of the source and maintains constant output from the very first second.
Ramping control allows heating plants to adjust their minutes reserves, e.g. from 15 minutes (MR15 +) to 5 minutes (MR5 +). Producers of renewable energy can use the ramping control function to modulate steep increases and decreases in power output, thus preventing voltage fluctuations in network.
Capacity of firming literally tames the sun and wind. It makes unstable renewable predictable. During peak production, it sends energy to batteries or graphene cells and stores it for later use. This smooths the production curve like the peak shaving on the part of the consumer.
A key function for businesses on high voltage and extra high voltage systems. During periods of peak demand, a Energy Storage System covers differences in planned consumption and ensures the organization’s renewable sources are used at maximum efficiency. This significantly reduces reserve capacity costs and helps avoid high penalties for exceeding limits.
For critical appliances, power outages can be prevented entirely using the UPS (Uninterrupted Power Source) function. In its role as a back-up power source, a Energy Storage Systems ensures a continuous supply of electricity. The function can also be used to prevent micro outages.
POWER FACTOR REGULATION
A Energy Storage System has no difficulty handling phase shift. It doesn’t
matter if the voltage in the system is leading the current or vice versa. In either case, the system balances the discrepancy. The function is set up to permanently keep the cos ϕ value as close to 1 as possible.
INCREASED TRANSMISSION SYSTEM CAPACITY
Energy Storage Systems provide a solution to situations where the capacity of the distribution system is insufficient to cover the expansion of a factory, for instance. Instead of a lengthy and complicated process of upgrading to a larger mains connection, peak demand can be covered for limited periods of time with a Energy Storage System. Installation is easy, fast, and efficient.
REACTIVE POWER COMPENSATION
We can use graphene cells for appliances generating reactive current. A Energy Storage System is a considerably more practical solution, because it uses a single device to regulate reactive current across the entire industrial facility. is a considerably more practical solution, because it uses a single device to regulate reactive current across the entire industrial facility.
IAMAS can offer solutions in the classical way using energy storage systems with lithium batteries or with our new innovative technology using graphene cells. We also have specialized solutions for military use.
About our Graphene Ultracapacitors
Graphene-based supercapacitors are said to store almost as much energy as lithium-ion batteries, charge and discharge in seconds and maintain all this over tens of thousands of charging cycles. One of the ways to achieve this is by using a a highly porous form of graphene with a large internal surface area (made by packing graphene powder into a coin-shaped cell and then dry and press it).
Graphene is a thin layer of pure carbon, tightly packed and bonded together in a hexagonal honeycomb lattice. It is widely regarded as a “wonder material” because it is endowed with an abundance of astonishing traits: it is the thinnest compound known to man at one atom thick, as well as the best known conductor. It also has amazing strength and light absorption traits and is even considered ecologically friendly and sustainable as carbon is widespread in nature and part of the human body.
Graphene is often suggested as a replacement for activated carbon in supercapacitors, in part due to its high relative surface area (which is even more substantial than that of activated carbon). The surface area is one of the limitations of capacitance and a higher surface area means a better electrostatic charge storage. In addition, graphene based supercapacitors will utilize its lightweight nature, elastic properties and mechanical strength.
Ultracapacitors, also known as EDLC (electric double-layer capacitor), differ from regular capacitors in that they can store tremendous amounts of energy.
A basic capacitor usually consists of two metal plates, separated by an insulator (like air or a plastic film). During charging, electrons accumulate on one conductor and depart from the other. One side gains a negative charge while the other side builds a positive one. The insulator disturbs the natural pull of the negative charge towards the positive one, and that tension creates an electric field. Once electrons are given a path to the other side, discharge occurs.
Supercapacitors also contain two metal plates, only coated with a porous material known as activated carbon. They are immersed in an electrolyte made of positive and negative ions dissolved in a solvent. One plate is positive and the other is negative. During charging, ions from the electrolyte accumulate on the surface of each carbon-coated plate. Supercapacitors also store energy in an electric field that is formed between two oppositely charged particles, only they have the electrolyte in which an equal number of positive and negative ions is uniformly dispersed. Thus, during charging, each electrode ends up having two layers of charge coating (electric double-layer).
Batteries and Supercapacitors
Unlike capacitors and supercapacitors, batteries store energy in a chemical reaction. This way, ions are inserted into the atomic structure of an electrode, instead of just clinging to it like in supercapacitors. This makes supercapacitors (and storing energy without chemical reactions in general) able to charge and discharge much faster than batteries. Due to the fact that a supercapacitor does not suffer the same wear and tear as a chemical reaction based battery, it can survive hundreds of thousands more charge and discharge cycles.
IAMAS is a trading name of IAMAS Technologies Ltd. The company IAMAS Technologies Ltd is registered in England and Wales with company number 11842459, the Registered office address is on 269 Farnborough Road Farnborough, London. Post Code: GU14 7LY.