What are the energy storage methods of solar photovoltaic?
There are many forms of energy storage in solar photovoltaic systems. Here are some common energy storage methods:
1.Lithium Ion Battery:
Lithium-ion batteries are currently one of the most commonly used solar photovoltaic energy storage methods. It has high energy density, long life, fast charge and discharge rates and high efficiency.
2.Lead-acid battery: Lead-acid battery is a traditional and widely used energy storage technology. It is one of the most common energy storage methods in solar photovoltaic systems, with low cost and good stability.
3.Lithium iron phosphate battery: Lithium iron phosphate battery is an emerging energy storage technology with high energy density, long life and high safety. It is considered to be one of the ideal choices for solar photovoltaic systems.
4.Supercapacitors: Supercapacitors have high power density, long cycle life and fast charge and discharge capabilities. They can be used as short-term energy storage devices in solar photovoltaic systems to balance power demands and provide short-duration high power output.
5.Hydrogen fuel cells: Hydrogen fuel cells use electricity generated by solar photovoltaic systems to split water into hydrogen and oxygen, and then use the hydrogen to generate electricity. It can be used as a long-term energy storage system with high energy density and long-term storage capabilities.
6.Compressed air energy storage: Compressed air energy storage uses electricity generated by solar photovoltaic systems to compress air and store it in air storage tanks. When energy needs to be released, the compressed air is passed through a generator to release energy.
Flow batteries: Flow batteries produce electricity by storing liquid from an electrochemical reaction in two reservoirs and then flowing the electrolyte through it. Solar photovoltaic systems can use excess electricity to be added to flow battery systems for storage.
Each of these energy storage methods has its own characteristics and is suitable for solar photovoltaic systems of different sizes and needs. When choosing an energy storage method, factors such as energy density, cost, lifespan, efficiency and environmental impact need to be considered.