MPPT
MPPT in the SpeicherCampus context: optimizes PV modules and enables direct DC PV integration. Technically, the term is usually described as Maximum Power Point Tracking.
What does MPPT mean?
Maximum Power Point Tracking keeps PV modules at their point of highest output — voltage and current are continuously adjusted to harvest the maximum at any irradiance. In storage systems, an “integrated MPPT” means a direct DC PV input: PV strings connect to the storage system without their own inverter.
Depending on configuration, the OmniCube A215 offers one or two MPPT trackers with 50 or 100 kW of PV input power. PV power then charges the battery without double conversion — more efficient than the route via the AC side.
What matters in practice
- the MPPT voltage range must match the string design (A215: 0-652 V)
- the number of trackers determines how many differently oriented roof areas make sense
- existing PV with its own inverter stays AC-coupled — both can be combined
- under feed-in limitation, the MPPT path can rescue curtailed energy
Practical example
A business adds 40 kWp of PV on a secondary roof. Instead of a new inverter, the string connects directly to the storage system’s MPPT — lower cost, fewer conversion losses, and the surplus lands in the battery first.
The SpeicherCampus perspective
For every project, SpeicherCampus checks whether new PV areas should connect via the MPPT or on the AC side. The answer follows from the existing installation, string design and feed-in situation — not from the brochure.