Photovoltaic Energy Storage

Household distributed photovoltaic energy storage scenario: Suitable for small household photovoltaic systems (usually 3-10kW), installed on residential roofs, courtyards and other areas, the core is used to store surplus electricity generated by household photovoltaic systems, solving the problem of residents working during the day and unable to use photovoltaic power generation in real time, achieving “spontaneous self use, surplus electricity storage, emergency power supply”. For example, after installing photovoltaic panels in residential households, electricity generation during the day is prioritized to meet household lighting and home appliance needs, and excess energy is stored in energy storage devices. When home appliances are used at night, the energy storage devices provide power, which can significantly reduce household electricity bills; In the event of a power outage, energy storage devices can automatically switch to emergency power supply, ensuring the normal use of key household appliances such as refrigerators, air conditioners, and lighting, and enhancing the autonomy and safety of residents’ electricity consumption.

Industrial and commercial distributed photovoltaic energy storage scenarios: Suitable for distributed photovoltaic systems in industrial and commercial buildings such as factories, office buildings, shopping malls, hotels, etc., with a capacity of usually 10-1000 kW, the core function is to smooth out photovoltaic power generation fluctuations, peak shaving and valley filling, reduce the electricity costs of industrial and commercial users, and ensure continuous power supply for key production equipment and office equipment of enterprises. For example, during the day, photovoltaic power generation in factories can be directly used to meet the electricity needs of production workshops and office areas. Excess electricity can be stored and released during peak electricity consumption periods (such as peak production seasons during the day and peak electricity consumption at night) to avoid increasing enterprise costs due to high electricity prices during peak grid periods; Shopping malls and hotels can use energy storage devices to store photovoltaic energy, which can be used to supply power when there is a large passenger flow and high electricity load. At the same time, they can respond to sudden power outages in the power grid to avoid the impact of power outages on business activities and reduce economic losses.

Centralized photovoltaic power station energy storage scenario: Suitable for large centralized photovoltaic power stations (usually with a capacity of over 1000kW), it is the core supporting equipment for centralized photovoltaic power stations to achieve stable grid connection and improve power generation quality. Centralized photovoltaic power stations have a large scale of power generation and are significantly affected by weather, resulting in large fluctuations in power generation. Energy storage equipment can store surplus electricity from the power station and release it when the photovoltaic output is insufficient (such as rainy or cloudy days), stabilizing power generation fluctuations, ensuring stable output power of the power station, and meeting the requirements for grid access; At the same time, it can participate in peak shaving and frequency regulation of the power grid, improve the stability of power grid operation, increase the power generation revenue of power stations, and promote the large-scale and standardized development of centralized photovoltaic power stations.

Photovoltaic energy storage scenarios in remote areas and areas without power grid coverage: Suitable for remote areas such as mountainous areas, pastoral areas, islands, etc. where the power grid is not covered or unstable, the core is to solve the electricity problems of local residents and enterprises, and achieve an independent power supply system of “photovoltaic+energy storage”. For example, in remote mountainous villages, an independent power supply system can be built by installing photovoltaic panels and energy storage devices to provide villagers with the electricity needed for lighting, household appliances, and small production equipment operation, replacing traditional diesel generators. This not only promotes environmental protection and energy conservation, but also reduces electricity costs; The island region can utilize abundant solar energy resources to provide power to island residents, tourism facilities, and communication equipment through photovoltaic energy storage systems, solving the problems of difficult access to the island power grid and unstable power supply, and enhancing the island’s ability to ensure electricity supply for daily life and production.

Public facility photovoltaic energy storage scenario: Suitable for public facilities such as schools, hospitals, community service centers, transportation hubs (stations, parking lots), etc., the core is to reduce the electricity cost of public facilities, ensure the continuous and stable operation of public services, and practice the concept of low-carbon and environmental protection. For example, schools can use rooftop photovoltaic systems to generate electricity and store surplus energy through energy storage devices for classroom lighting, office equipment, cafeteria electricity, etc., reducing the school’s operating costs; As a key public facility, hospitals can use photovoltaic energy storage systems as emergency backup power sources to supply power to medical equipment and lighting systems in operating rooms, emergency rooms, and wards during power outages, ensuring the normal operation of medical treatment work and avoiding serious consequences caused by power outages; Transportation hubs can utilize photovoltaic energy storage systems to power devices such as street lamps, charging stations, and waiting hall lighting, achieving green transportation and low-carbon operation.