Air cooling
Air cooling in the SpeicherCampus context: robust and economical for suitable applications. Technically, the term is usually described as heat removal via air.
What does air cooling mean?
With air cooling, fans remove battery heat via a directed air stream. The concept is mechanically simple — no pumps, no coolant, no refrigeration circuit — and accordingly robust, low-maintenance and frugal in auxiliary consumption.
Its limit is high continuous power: air transports heat less well than liquid, and the temperature spread between cells grows under heavy load. For typical commercial profiles with one full cycle per day, that is uncritical.
What matters in practice
- check the load profile: moderate C-rates are air cooling’s home game
- the site needs air circulation and dust management (filter maintenance)
- consider fan noise for indoor installation
- lower auxiliary consumption improves the real RTE
Practical example
A trade business cycles its 215 kWh system once daily for PV shifting. The air cooling of the OmniCube A215 (IP54) is fully sufficient — a liquid-cooled system would have meant extra cost without extra benefit.
The SpeicherCampus perspective
SpeicherCampus recommends air cooling wherever the load profile permits it — it is the economical choice, not the weaker one.