INTRODUCING DEEPDRIVE’S MG 250
2025 / 08 / 29

Sometimes innovation doesn’t mean inventing something entirely new – but rethinking a proven concept for today’s needs. What was once seen as a temporary technology is now making a comeback: the Range Extender.
Automakers such as Li Auto, BYD and Nissan (with its ePower system) are reintroducing the principle – this time not as hybrids built on combustion platforms, but as pure EVs with modular combustion units added where needed. For markets with a lack of charging infrastructure, from China and India to the US, this approach offers a pragmatic bridge solution.
It’s exactly this market demand and customer pull that led us at DeepDrive to develop the MG 250, a compact, efficient and cost-optimised generator that brings our patented Dual Rotor, Radial-Flux technology into a new application.

WHY THE MG 250 – AND WHY NOW?

“As OEMs came to us with specific requirements for efficient and compact generators, it became clear that our motor technology could be the basis for a new kind of range extender” explains Dr.-Ing. Alexander Rosen, Co-Founder & Chief Engineer of DeepDrive. “What started as early conversations quickly turned into a strong market signal. With the MG 250, we’re delivering an answer that is both technically and economically compelling.”
Adrian Wanner, Engineering Associate and working on the Generator at DeepDrive, adds: “The challenge was clear: make it small, highly efficient and easy to integrate. The MG 250 was designed precisely for that sweet spot.”

TECHNICAL BREAKTHROUGHS

At the heart of the MG 250 is DeepDrive’s Dual Rotor machine. Its compact construction, high efficiency and robust continuous performance allow it to be coupled directly to the crankshaft of the combustion engine – no gearbox needed. That eliminates cost, complexity and energy losses, while enabling continuous power of 120 kW at 5000 rpm with a simple but very effective water-cooling.
Another key differentiator is the ability to cancel out engine vibrations electronically. “Instead of relying on mechanical add-ons like a dual-mass flywheel, we use advanced control software,” says Rosen. “That keeps the system lightweight and durable, while protecting the bearings and windings from harmful loads.”
The MG 250 also integrates its own SiC inverter and builds on the validated cooling architecture of our Central Drive system. Depending on customer needs, it can be configured for oil or water-glycol cooling, ensuring 120 kW continuous power without derating.

DESIGNED FOR EFFICIENCY AND SCALE

Unlike typical electric drives that must deliver frequent peak loads, a generator in a range extender spends most of its time operating at steady state. The MG 250 is tailored for exactly this profile: 96.9% peak efficiency and an outstanding efficiency map across the continuous operating window.
And while performance is key, cost efficiency is equally critical. Proprietary winding technologies and material optimizations keep production costs low, making the MG 250 a scalable solution ready for high-volume manufacturing.

SEE IT FIRST AT IAA 2025

The MG 250 Generator will be presented to the public for the first time at IAA Mobility 2025 in Munich. You’ll find us in Hall A1, Booth C23, where we’ll also showcase our Central Drive, In-Wheel Drive and a Tech Explosion offering deep insights into our machine concept.