Power Stacks for Modern Electrification

Modular, ultra-compact power conversion

Built once, deployed everywhere

WATTS COOLER.

Power stacks, reimagined

Marel makes ultra-compact power stacks for high-power converters, inverters, breakers, and other systems for mobility, defense, data centers, and beyond.

Marel integrates semiconductor die packaging and cooling directly into the stack, helping system builders reduce size, weight, cost, and complexity.

Marel does not make power die or systems.

Compatible with silicon and silicon carbide today, with gallium nitride next. Available as product or through IP licensing. Launching at 1.2kV today, with 3.3kV next.

Defense

Marel power stacks are built for harsh, high-demand defense environments across ground vehicles, aircraft, naval platforms, and deployable field power systems. Their high-temperature capability and much higher power density help reduce size, wiring, armor, weight, and overall system burden while supporting the high current needed for electrified subsystems, high-torque platforms, and rapid modular power deployment.

Data Centers

Marel power stacks address a key emerging challenge in data centers: compact, efficient power conversion around an 800V DC bus architecture. As rack power rises, systems need efficient conversion from medium-voltage utility feeds to 800V DC, and then from 800V DC to lower-voltage rails such as 48V DC. Marel’s compact, modular approach is a strong fit where density, thermal performance, and scalability matter most.

Mobility

Marel power stacks help mobility system builders build smaller, lighter, lower-cost, less complex converters and inverters. That matters across EV propulsion, charging, commercial vehicles, and other electrified platforms where space is tight, efficiency is critical, and cost pressure is constant. Marel’s modular approach also supports reuse across multiple vehicle classes and power levels.