Inverters can have three options depending on the power density and the size of the cabinet (natural convection (low-power units), forced-air cooling (fan-based), or liquid cooling (industrial-scale grids with high power density).

Choosing the best approach would be based on the environment and heat dissipation consideration. To get a more specific input, you can read our analysis of how to cool your inverter.

Battery Energy Storage System (BESS), it is important to keep the temperature within an optimal range in order to avoid battery cell degradation and thermal runaway. The cooling system does not exist in isolation, but it has to be fully coordinated with other battery energy storage system components, including the Battery Management System (BMS) to monitor its status and the Power Conversion System (PCS) to convert the energy. This combined methodology guarantees the security and the durability of the whole energy storage system.

The problem of overheating is frequently a multi-factorial problem. It can be due to the inefficient ventilation of the enclosures, the high ambient shop-floor temperature, or the excessive amount of dust on the heat sinks. Although a critical preliminary examination is to make certain that the cooling system is functioning at its recommended RPM, the internal airflow path should also be audited to guarantee there is no obstruction.

These dynamics are what are needed in order to have uptime of the system. A more thorough systematic checklist for diagnosing these problems is available in our list of VFD cooling solutions for overheating.