On-Grid Solar-Storage-Charger Station
With the rapid development of renewable energy, solar power is gradually becoming an important part of the energy mix.On-Grid Solar-Storage-Charger Station is a comprehensive system integrating solar power generation, energy storage and electric vehicle charging, which can effectively optimize the use of energy and improve the stability and flexibility of the power system.
System Components
Solar Power System
● Solar photovoltaic panels are installed on the roof of the shopping mall and on the roof of the parking lot with a total installed capacity of 500 kW.
● Photovoltaic inverters convert DC power to AC power and connect to the grid.
Energy Storage System
● Equipped with a 500 kWh lithium battery energy storage system.
● The energy storage system charges when the electricity price is low and discharges when the electricity price is high, in order to balance the electricity load and reduce the electricity bill.
Charging Station
● Equipped with 20 fast charging piles to support multiple types of electric vehicles.
● Each charging pile is connected to the energy storage system and the power grid to ensure the stability and efficiency of charging.
Principles of operation
Power Generation and Energy Storage
● During the daytime when there is plenty of sunlight, the electricity generated by the photovoltaic panels is prioritized for use in the shopping mall, and the remainder is used to charge the energy storage system.
● The energy storage system is charged from the grid at times of low power demand (e.g. at night) for use during peak hours.
Electricity Supply
● During peak hours, the energy storage system discharges to reduce the load on the grid and at the same time reduce the cost of electricity for the mall.
● When neither the PV nor the storage system can meet the demand, power is supplemented from the grid.
Charge Management
● Intelligent management system optimizes power allocation to charging piles based on electricity price and EV charging demand.
● Prioritize the use of electricity from solar power and energy storage systems during charging to reduce reliance on the grid.
Economic benefits
Reduced Electricity Costs
● The difference in peak and valley tariffs realizes the “peak shaving and valley filling” of electricity, which significantly reduces electricity expenses.
● The use of solar power reduces the demand for grid power, further reducing electricity costs.
Improved Energy Utilization
● The introduction of the energy storage system improves the utilization rate of solar power generation and reduces the waste of photovoltaic power generation.
● Intelligent charging management system optimizes charging efficiency and reduces power loss.
Increase Revenue
● Providing electric vehicle charging services attracts more customers and increases mall traffic and revenue.
Conclude
The application of the On-Grid Solar-Storage-Charger Station project realizes economic benefits and also provides a comparable experience and model for similar commercial sites. With the continuous progress of technology and policy support, this kind of integrated energy system will be more widely used and promoted in the future, contributing to the optimization of energy structure and environmental protection.