PRECISIÓN NOPPZE

The importance of energy storage for energy conversion An energy storage device is generally defined as “a system that receives energy for the purpose of electrical, chemical, electrochemical, mechanical or thermal storage and makes it available again for delayed use”. However, only when production equipment such as photovoltaic power plants, wind power generation equipment, and micro cogeneration plants are interconnected, can future energy consumers and energy suppliers realize all-day energy digital monitoring in homes, businesses, and industries. The key to realizing future energy supply is modern information and communication technology and energy storage technology. PV energy storage, heat storage technology, power-to-gas power plants or electric heating equipment can improve the stability of the safe frequency of the power grid, and on this basis, the smart grid can be flexibly adjusted according to changes in energy demand. Systematic classification of energy storage technologies: Mechanical energy storage • Chemical energy storage • Electrochemical energy storage • Electric energy storage • thermal energy storage Let’s focus on electrochemical energy storage Electrochemical energy storage classification: • Classical battery energy storage (electrochemical energy in electrodes) • Redox, hybrid flow battery energy storage (electrochemical energy in electrolyte) Classification of electrochemical energy storage (according to degree of centralization): decentralized and central battery energy storage Electrochemical energy storage is a rechargeable battery, and the current technical methods mainly include: •Lead-acid batteries •Nickel-based batteries •Lithium Ion Battery •High temperature battery •Redox flow battery Distributed battery energy storage Mainly used in small electrical systems, for example in detached or semi-detached houses. Due to the short number of charging cycles, frequent loading and unloading, and the gradual reduction of battery energy storage capacity, the cost of similar decentralized battery energy storage is relatively high, which limits the scale of their use. central battery storage.