The goal of the energy turnaround is to switch the supply to renewable energies. Solar and wind energy are fluctuating energy sources whose generation does not coincide with the individual energy demand. By means of a battery storage system, the self-consumption of renewable energies in the commercial and industrial sector can be significantly increased and the grid consumption can be reduced at the same time. This eliminates the need for cost-intensive expansion of the grid transfer point and represents a technically and economically effective solution.

A large number of manufacturing companies require a significantly higher amount of energy at certain time intervals, e.g. to ensure the start-up of a machine or plant. Since energy suppliers must always guarantee and provide the corresponding power peaks, their industrial and commercial customers are billed for the grid usage fees. Thanks to deployed battery storage systems, peak loads can be significantly reduced and the associated operating costs lowered.

The market ramp-up in the field of electromobility requires fast-charging stations, whose simultaneous operation often requires a connected load in the megawatt range. Instead of a time-consuming and cost-intensive extension of the electrical grid connection, battery systems as buffer storage represent a technically and economically effective solution.

Since certain applications of industrial and commercial storage systems are severely limited in time, they can be operated much more effectively through additional operational management strategies to achieve a faster payback of investment costs. For example, self-consumption optimization can be performed in combination with peak load capping using the same battery storage system.

With time-variable electricity tariffs, a battery storage system can be used for energy trading by storing electrical energy at time intervals with low tariffs and feeding it into the grid at times of higher electricity prices.

In industrial and commercial applications, operating costs can be reduced by using energy purchased at low rates and stored in a battery system at high rates.

The effectiveness of fluctuating energy sources is increased in the context of an industrial and commercial battery storage system by incorporating weather forecast data into operation management strategies.

To ensure the stability of the electric grid, the instantaneous levels of generated and consumed energy must be kept in balance. Since major load fluctuations lead to power outages, grid operators must compensate for them through load control. As renewable generation becomes unpredictable, the need for grid stabilization increases. Battery storage systems allow grid operators to keep reserve power on hand to guarantee power grid stabilization.

The use of powerful renewable energy generation systems is problematic in weak grid infrastructures despite potentially high self-consumption, since maximum permitted feed-in quantities are severely restricted in order to avoid grid overload. Through intelligent operation management of a battery storage and inverter system, a so-called zero feed-in can be configured so that the excess energy is temporarily stored and not fed into the electrical grid. Thus, a high energy demand can be covered by a self-generating plant by means of a battery system despite a weak grid infrastructure.

Battery storage in combination with a suitable inverter system allows consumers not connected to the public grid to switch from fossil energy sources to renewable fluctuating energy sources.

For a large number of companies, grid failures represent an economic and safety hazard. Battery storage systems offer a reliable as well as ecologically and economically sensible alternative to conventional diesel gensets for generating emergency power.