Household energy storage, also known as home energy storage system, is similar to micro energy storage power stations, and its operation is not affected by urban power supply pressure. In the off-peak time of electricity consumption, the battery pack in the household energy storage can charge itself to reserve the use of peak power or power failure.
According to different coupling methods and whether it is incorporated into the power grid, household energy storage can be divided into four types: hybrid home photovoltaic + energy storage system, coupled home photovoltaic + energy storage system, off-grid home photovoltaic + energy storage system, and photovoltaic energy storage energy management system.
Household energy storage adopts the integrated microgrid design idea, which can operate in off-grid and grid-connected dual modes, and can realize seamless switching of operation modes, greatly improving the reliability of power supply. In addition, the flexible and efficient management system for household energy storage can adjust the operation strategy according to the power grid, load, energy storage and electricity price, so as to optimize the system operation and maximize the user's benefits.
The household energy storage system is a new type of energy acquisition, storage and use hybrid system, which is based on the traditional photovoltaic grid-connected power generation system and adds lithium batteries to store electricity, and is composed of batteries, hybrid inverters and photovoltaic panels. Briefly introduce the operation mode of household energy storage system.
1. Morning: light intensity is weak, low energy generation, high energy demand; At sunrise, the solar panels began to produce energy, not enough to meet the morning's energy needs; The energy storage system invokes the power stored in the battery to be used by the power generator
2. Noon: the strongest light intensity, the highest energy output of solar panels, low energy demand. The energy produced by solar panels peaks during the day. But since no one is home, the energy consumption is very low, so most of the energy generated is stored in the battery.
3. Night: weak light intensity, low energy production, high energy demand. The highest daily energy consumption is at night when the solar panels produce little or no energy, and the energy storage system will call on the energy generated during the day to meet the energy demand.
Overall, household energy storage is elegant and beautiful, easy to install, equipped with long-life lithium-ion batteries, and combined with photovoltaic, can provide electricity needs for residential, public facilities, small factories, etc.
