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> Turntide’s patented Smart Motor System is built around a type of electric motor known as a switched reluctance motor, or SRM. ... There’s only one moving part: a solid steel rotor that turns in a switchable magnetic field.

sounds interesting, then this:

> Turntide’s cloud-based software platform makes SRMs more controllable and allows them to run at much greater efficiency than legacy motors.

what??

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Yeah it's not clear in the article but I reckon it is about minimizing torque ripple and perhaps other control issues. https://ieeexplore.ieee.org/document/557001 https://www.controleng.com/articles/resurgence-for-sr-motors... https://ieeexplore.ieee.org/document/6808735 https://en.m.wikipedia.org/wiki/Switched_reluctance_motor As for "much" greater efficiency, I don't think so unless you are comparing to an induction motor running at very low load (efficiency drops off more than for SRM). I don't know how much of their time e.g. typical HVAC motors spend at such a low load in the real world.

And when the server goes down, all the motors turn into e-waste

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