Energy storage: Can it reduce costs, improve reliability and enable a clean energy transition?
With the growing global demand for clean energy, energy storage technology has become a crucial part of the renewable energy field. Energy storage can balance energy supply and demand, improve the stability and reliability of the power system, and thereby reduce the cost of the entire energy system. We can discuss the application of energy storage technology in clean energy from three aspects: energy storage cost, capacity electricity fee, and new energy distribution and storage.
1. Energy storage cost
Energy storage cost is an important indicator in the development of energy storage technology. Generally speaking, the cost of an energy storage system includes hardware equipment cost, system integration cost, software development cost, installation and commissioning cost, operation and maintenance cost, etc. The cost of hardware equipment is the main cost of the energy storage system, including different types of energy storage equipment such as batteries, capacitors, supercapacitors, compressed air energy storage, and mechanical energy storage. Among these devices, batteries are the most widely used energy storage device. The cost of batteries is gradually decreasing with the development of technology and expansion of scale.
2. Capacity electricity charges
Energy storage technology can provide power system backup capacity through charging and discharging, thereby reducing the frequency of use of fuel-based units. During peak periods, energy storage systems can provide additional power through discharge, thereby reducing reliance on fuel units. During low periods, the energy storage system can be recharged to store energy in case of emergency. This can make the power system more flexible and improve its reliability.
3. New energy distribution and storage
New energy distribution and storage refers to the use of energy storage technology with renewable energy to balance the supply and demand of the power system. Renewable energy (e.g., wind, solar) is characterized by uncertainty and volatility, which makes it difficult to predict and manage. Energy storage technology can store energy when wind and solar energy are sufficient, and release the stored energy when energy is insufficient, thereby balancing the supply and demand of the power system. This new energy distribution and storage method can reduce wind and light abandonment of renewable energy and improve the stability and reliability of the power system.
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