Different application scenarios have different battery design ideas. There are three main common normal application scenarios: self-generation (higher electricity costs or no subsidies), peak and valley tariffs, and backup power (grid instability or important loads).
Self-generation: choose to select the capacity of the battery based on the average daily household electricity consumption (kWh) (default PV system is energy sufficient)
Peak and Valley Tariff: Calculate the maximum demand value of the battery capacity based on the total electricity consumption during the peak period. Then find an optimal battery capacity within that interval based on the capacity of the PV system and the benefits of the investment.
Standby power: where the total power used when off-grid and the expected time off-grid are the most critical parameters. Based on the maximum power and electricity consumption of the power-using load during the longest continuous power outage hours throughout the day, the battery capacity needed is finally determined.
PV+Storage Application Scenario
Photovoltaic + energy storage has become a very common way of utilization in foreign countries, and there are many kinds of application scenarios, the following describes several application scenarios of energy storage.
1. Microgrid
Small-scale power generation and distribution system consisting of distributed power supply, energy storage device, energy conversion device, load, monitoring and protection device, etc. is the main application of energy storage system in China at present.
2.New Energy Vehicle Charging Station
The development of new energy vehicles is inseparable from the construction of charging infrastructure, and setting up supporting energy storage facilities is conducive to improving the quality of local power grid and increasing the selectivity of charging station sites.
3. Diesel-powered areas
Energy storage technology can replace diesel generators, reduce the cost of power generation, and at the same time reduce the air and noise pollution caused by diesel generators.
4.Trading with renewable energy plants
Energy storage systems participate in the paid peaking auxiliary service of electricity, thus helping to make up for the shortage of power supply peaking capacity.
