Commercial Battery energy storage with backup

A battery energy storage system (BESS) is an electrochemical unit that stores energy from the grid and then gives that energy at a later time to provide this energy.
Energy storage in lithium-ion batteries is considered one of the most efficient.
Commercial scale battery energy storage systems for managing electricity supply or providing services for the grid is a new solution gaining popularity.
What to use BESS for:

• • • • Lack of power from the grid. BESS depends on the type of system, it can – provide energy in response to changes or drops in frequency and voltage and provide additional power in case of insufficient power from the grid. This will help to avoid expensive investments in transmission and distribution reconstruction.
      • Energy balance reduces consumers’ overall electricity costs by storing energy during off-peak periods when electricity prices are low for later use and when the electricity prices are high during peak periods.
      • With solar (VDE) source
        Renewable energy sources are increasingly impacting the country’s power system. Therefore, more significant requirements are being formed for the predictability of such systems. Thus, one option is to add to the solar station, for example, an energy storage system. An energy storage system can help balance the system and avoid surge generation in the grid.
      • BESS with Backup (grid-off)
        Use BESS with backup (off-grid mode) in sites where power outages are frequent or multiple power sources are required.
        A backup BESS can also use battery energy to manage consumption compared to a stand-alone system

Let’s consider in more detail the possibilities of using BESS with Backup. Why exactly do we single out BESS with Backup in a separate category? Because an energy storage system does not mean the possibility of grid-off operation in every case. Just as a solar power plant cannot generate electricity without a grid, and in fact, ensuring backup operation is not always necessary.
Systems that can work without a grid are more expensive.
Another challenge is that grid-off systems are quite unique, and previously there was a limited number of solutions that could be applied to the commercial sector. Certain industrial facilities were designed with equipment manufactured specifically for that facility.
With the development and demand for energy storage systems to solve problems in the residential sector, the commercial sector is starting to take this experience and scale it up.
Manufacturers, and developing technologies, have begun to offer energy storage system solutions with the possibility of partial or full grid-off mode.
What is the difference between BESS in the private sector, which is quite common, and the commercial sector? – In scale and responsibilities.
Solutions starting to be used in the commercial sector face new challenges arising from scaling – like fire protection, cooling, thermal runaway prevention, maintenance, etc.
With the development of BES and its various branches, we will soon be able to achieve significant progress in transforming renewable energy sources from non-guaranteed to guaranteed, which will reduce the impact of coal-fired power plants on the environment.