Stationary Battery Storage

Stationary battery storage systems are permanently installed battery storage systems that absorb electrical energy and make it available again at a later time. They are not used in a mobile way, but are operated permanently at one location – for example in businesses, on buildings, in energy facilities or directly in the electricity grid.

Distinction from mobile battery systems

Unlike batteries in electric vehicles or portable applications, stationary battery storage systems are permanently integrated into an energy infrastructure. They are not used for propulsion or mobility, but for storing and flexibly using electricity.

Typical areas of application

Stationary battery storage systems are used in very different sizes and fields of application. These include, among others:

• storage of electricity from photovoltaic systems
• reduction of peak loads in businesses
• increasing self-consumption
• optimisation of energy flows in commerce and industry
• grid stabilisation and integration of renewable energies

Role in businesses and in the electricity system

For businesses, stationary battery storage systems are relevant above all because they can reduce electricity costs and make energy consumption more flexible. Depending on their design, they can be used as an electricity storage system at individual locations or integrated into complex energy systems as a larger BESS. In larger applications, stationary storage systems also take on grid-supporting tasks. Large systems coupled directly to the grid are often counted among the grid-scale battery storage systems.

Significance for the energy transition

As the share of renewable energies rises, stationary battery storage systems continue to gain in importance. They help to shift electricity from volatile sources in time, to balance out fluctuations and to provide energy when it is actually needed.

Frequently Asked Questions (FAQs)

What are stationary battery storage systems?

Stationary battery storage systems are permanently installed battery storage systems that absorb electrical energy and make it available again at a later time.

How do stationary battery storage systems differ from mobile battery systems?

Stationary battery storage systems are permanently installed at a fixed location, whereas mobile battery systems are used in vehicles or portable applications.

What are stationary battery storage systems used for?

Stationary battery storage systems are used to store electricity, reduce peak loads, increase self-consumption, optimise energy flows and stabilise the electricity grid.

Why are stationary battery storage systems of interest to businesses?

With stationary battery storage systems, businesses can reduce energy costs, control electricity consumption more flexibly and make their energy supply more economical and robust.

What role do stationary battery storage systems play in the energy system?

Stationary battery storage systems support the integration of renewable energies, balance out electricity fluctuations and increase the flexibility and stability of the energy system.

Are stationary battery storage systems the same as grid-scale storage systems?

Not always. Stationary battery storage systems can be used in various sizes, whereas grid-scale storage systems specifically refer to large, grid-coupled storage systems on a megawatt scale.