What is a solar energy storage system?
Solar energy storage system includes solar modules, lead-acid batteries, charging controllers and structural materials. It is mainly designed and manufactured according to the characteristics and requirements of new energy power generation system. The working principle is as follows:
When the sun shines, the solar module converts the light energy into electrical energy and stores it in the battery (group). When the load of the device is turned on, the electric energy of the battery supplies power to the load.
system characteristic:
- Simple structure
- Reliable operation
- Perfect control and protection function
Residential solar storage energy
Why household storage？
The so-called “household energy storage”, namely “household energy storage + distributed photovoltaic”.
Through solar energy and other new energy power generation equipment for household power, while managing the electricity, the excess electricity will be stored and supplied to the grid. If electricity is stored, residential PHOTOVOLTAIC systems can increase the rate of self-use. Distributed energy storage applications represented by household light storage have shown good economic benefits in peak-cutting and valley filling, saving electricity costs, delaying transmission and distribution capacity expansion and upgrading, etc.
The development of home energy storage has great significance for both households and power grids
For households:
Home storage can reduce electricity costs by increasing the proportion of self-use and participating in auxiliary services, and at the same time serve as emergency backup power when facing major disasters and other factors that lead to mid-range power of the power grid to improve the reliability of household power supply.
For power grid:
The rapid increase of VRE (fluctuating renewable energy) ratio will further widen the difference between power generation curve and power consumption curve. Energy storage can transfer power in time to assist power grid to balance power generation capacity and power demand.
Introduction of household energy storage + distributed photovoltaic system
Household energy storage + distributed photovoltaic system structure includes: photovoltaic module, energy storage battery, energy storage inverter, grid-connected and metering equipment, public power grid, household load and important load, etc. PV energy is used first to power important loads, then to charge batteries, and finally to the home load, and then to the grid. OSM Battery currently offers 5KWH, 10KWH, wall-mounted and stacked walls. This kind of product is very suitable for household energy storage needs.
Advantages of residential solar energy storage systems
- Close to terminals to reduce transmission costs
- Solve the difficult problem of photovoltaic power generation regulation
- Both end users and power companies benefit
- Low investment cost and quick return
- Modular, easy installation and debugging
- Installation is not restricted by region
Household photovoltaic energy storage solutions
In practical applications, home photovoltaic systems can use efficient solar photovoltaic inverters to supply electricity generated during the day to home appliances and store the excess energy in energy storage batteries. Most homes are using 48-v energy storage systems, which have 100Ah, 200Ah and 300Ah to store power. At night, energy storage batteries will continue to power the home. When the battery runs out during the night, the storage battery can be refilled overnight at a low price, thus achieving low-cost, environmentally friendly green electricity consumption.
Household energy storage is popular overseas
According to the latest “European Market Outlook for Household Battery Storage 2021-2025” report released by the European Photovoltaic Industry Association, household battery storage in Europe is growing rapidly. In 2020, about 140,000 household battery systems were installed in Europe, and the installed capacity reached 1,072 MWH in a single year, an increase of 44% year-on-year.
Germany is Europe’s residential solar photovoltaic (pv) and residential power battery energy storage system, in Italy, in addition to the existing support programme, the solar energy and energy storage introduced a powerful fiscal incentives, the market annual growth rate of 44%, in its five-year analysis, Germany will continue to maintain the undisputed leader in the field of residential energy storage, followed by Italy. Such a large market requires compliant products. OSMbattery has now obtained the CE certification of the European Union, ensuring the safety of batteries. They now sell their products worldwide.