Such as the U.S. home energy storage local brand Tesla, due to the booming market demand, supply and demand serious imbalance, successive price increases of its home energy storage products Powerwall battery, the current backlog of orders has exceeded 80,000.
Take Germany, Europe's largest home battery market, for example, as of the end of last year, its residential battery storage market covers more than 300,000 home users, the proportion of deployed battery energy storage systems more than 70%.
Relevant data show that by the end of last year, Germany, the United States, Japan, Australia, the cumulative home energy storage batteries installed in about 1-2.5GWh, if the capacity of 10kWh per household is projected, the total installation of home energy storage in the order of 10 - 25 million sets.
According to this calculation, the penetration rate of home energy storage batteries in Germany, the United States, Japan and Australia is about 1% of the stock of independent houses, if we take the current penetration rate of about 10% of home PV as a reference, it means that the penetration rate of home energy storage system is at least 10 times more room for improvement.
Hybrid home solar system+ battery energy storage system generally consists of PV modules, lithium solar battery bank lithium, hybrid inverter, smart meter, CT, grid, grid-connected load and off-grid load. The system can realize direct charging of the battery by PV via DC-DC conversion, or bi-directional DC-AC conversion for charging and discharging the battery.
During the daytime, the PV power is firstly supplied to the load, then the lithium solar battery bank is charged, and finally the excess power can be connected to the grid; at night, the lithium solar battery bank is discharged to the load, and the shortage is supplemented by the grid; when the grid is out, the PV power and the lithium solar battery bank In case of grid outage, the PV power and lithium solar battery bank are only supplied to the off-grid load, and the grid-connected load cannot be used. In addition, the system also supports users to set their own charging and discharging time to meet their electricity demand.
● Highly integrated system, which can significantly reduce the system installation time and cost
● Intelligent control can be realized to meet customers' electricity demand
● Provide customers with safe electricity when the power grid is down
Coupled home solar system + battery energy storage system, also known as AC retrofit PV + battery energy storage system, generally consists of PV modules, grid-connected inverter, lithium backup battery, AC coupled energy storage inverter, smart meter, CT, grid, grid-connected load and off-grid load. off-grid load. The system can realize the conversion of PV into AC power by the grid-connected inverter, and then convert the excess power into DC power by the AC-coupled energy storage inverter and store it in the lithium backup battery.
During the day, the PV power is firstly supplied to the load, then the battery is charged, and finally the excess power can be connected to the grid; at night, the lithium backup battery is discharged to the load, and the shortage is replenished by the grid; when the grid is out, the lithium backup battery is only supplied to the off-grid load, and the load at the grid end cannot be used. In addition, the system also supports the user to set the charging and discharging time to meet the user's electricity demand.
● It can transform the existing grid-connected PV system into energy storage system with low investment cost
● Can provide safe power guarantee for customers in case of grid outage
● Compatible with grid-connected photovoltaic systems of different manufacturers
Off grid home solar system + off grid energy storage generally consists of PV modules, off grid lithium battery bank, off grid energy storage inverter, load and diesel generator. The system can realize direct charging of lithium off-grid batteries by DC-DC conversion of PV, or bi-directional DC-AC conversion for charging and discharging of lithium off-grid batteries.
During the daytime, the PV power is firstly supplied to the load, and secondly, the lithium off grid battery is charged; at night, the lithium off grid battery is discharged to the load, and when the battery is insufficient, the diesel power is supplied to the load.
● Can meet the daily electricity demand in areas without grid
● Can be combined with diesel generators to supply loads or charge batteries
● Most off-grid energy storage inverters are not certified to be grid-connected, so even if the system has a grid, it cannot be grid-connected.
PV energy storage energy management system, the system generally consists of PV module, grid-connected inverter, home lithium battery, AC coupled energy storage inverter, smart meter, CT, grid and control system.
● The control system can receive and respond to external commands, respond to the system's power demand, and accept real-time control and scheduling of the system
● It can participate in the optimal operation of the grid, making the use of electricity more efficient and economical.
This article describes several types of home energy storage systems that are currently in use. If you are looking for the right type of home energy storage system for you, we hope this article can help you; likewise if you are a purchaser of home lithium batteries, please contact us for information on BSLBATT batteries.