nT-Tao has developed and installed a new 50 MW pulsed power subsystem featuring real-time nonlinear control, expanding its proprietary MEGA platform — short for Modular Energy Generator Architecture. The system is now operational on the C3 prototype and is targeting the next temperature milestone on the road to a commercial compact fusion reactor.
The subsystem consists of 50 one-megawatt modules — called PEGs — coordinated by a centralized controller that makes them act as a single, precisely tuned system. Boaz Weinfeld, co-founder and CTO of nT-Tao, summed up the engineering challenge plainly: “the hard part isn’t generating 50 MW of pulsed power — it’s controlling 50 modules together, in real time.” The modular architecture allows PEGs to be connected in parallel or in series depending on the application, while keeping the physical footprint compact enough to be compatible with the on-site reactor concept the company is building toward.
Context matters here. The C3 prototype is the latest iteration of nT-Tao’s fusion approach: proprietary magnetic confinement combined with high-density pulsed power. Its predecessor, the C2-A, reached plasma temperatures of roughly one million degrees — around 100 eV — in April 2025. The C3 was assembled and produced its first plasma pulses in under three months, a pace that reflects the company’s 12-month iterative development cycle. Data collected from the C3 feeds into simulations and informs the design of subsequent prototypes.
The MEGA platform supports three module types — capacitor bank discharge, continuous AC bursts, and pulsed energy storage — with a power density exceeding 10 MW/m² and an operating frequency range between 10 kHz and 10 MHz. The new 50 MW subsystem builds on an already validated nonlinear control system, developed in collaboration with Ben-Gurion University of the Negev and published in the journal Actuators in December 2025. That work addresses a concrete problem: fusion plasma behaves dynamically, and the electrical load presented to the power supply changes on microsecond timescales. nT-Tao’s controller maintains resonance and maximum energy transfer to the plasma even under these conditions.
nT-Tao’s end goal is a compact 20 MW reactor designed to fit within the footprint of a shipping container, suitable for distributed grids, industrial facilities, ships, and remote sites. The decision to build the system from 1 MW modules isn’t purely an engineering choice: it means that scaling up power is a matter of replicating an already proven unit, rather than redesigning from scratch. If the C3 delivers on its promise, nT-Tao will have validated both the high-density plasma physics and the electrical architecture intended to power its commercial product.
