Battery storage
Battery storage in the SpeicherCampus context: absorbs electricity and releases it later. Technically, the term is usually described as storage for electrical energy.
What does battery storage mean?
A battery storage system absorbs electrical energy, stores it chemically in battery cells and releases it at a later time. In the commercial context, the term almost always means the complete system of battery, inverter, control and protection — not the bare cell.
The value comes from shifting energy in time: midday PV power covers evening consumption, cheap overnight grid energy shaves the morning peak. How much of that is economical is determined by the load profile and the combination of applications.
What matters in practice
- size capacity (kWh) and power (kW) separately
- define the application: self-consumption, peak shaving, backup power, e-mobility
- compare cell chemistry (today mostly LFP), cycles and warranty
- settle installation site, cooling and fire protection early
Practical example
A butcher’s business with 90 kWp of PV shifts midday generation into the refrigerated night. The storage system also covers the start-up peaks of the cooling plant — two benefits from one investment, both visible in the load profile beforehand.
The SpeicherCampus perspective
SpeicherCampus sizes battery storage from the 15-minute load profile, never from annual consumption. That yields the combination of kWh, kW and operating strategy that actually works at the site.