Several hundred pounds of weight savings from less EMI (electromagnetic interference shielding) materials would reduce EV (electric vehicle) weight which will reduce batteries needed for EVs. This will reduce EV cost by $2200.
This will be the impact of 99.7% efficient inverters.
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Probably biggest gain is in saving cooling system complexity, bulk and volume. A 1% gain in inverter efficiency (already in 98% range for EV SiC inverters) obviously makes only 1% impact on battery pack size.
This prompts the question: “why was the T-zero called that?”
https://en.wikipedia.org/wiki/AC_Propulsion_tzero
Because switching at zero volts/zero current is not a new idea.
Now, going from 98% efficient to 99.7% efficient is actually pretty important locally in the inverter, it really reduces heat dissipation. So I’m not poo-pooing the significance of this.
But while that’s about a seven fold reduction in inverter heat dissipation, it’s still only a 1.7% reduction in power consumption… So the predicted weight savings are rather dubious.
Basically, if I follow this, they’re assuming that the rest of the vehicle was badly designed. You might get major weight savings in a knock off electric golf cart. In a Tesla? The gains would be pretty minor.
Several hundred pounds of weight saved by less EMI shielding? I’ve been involved in some vehicle electrical systems, and we were nowhere near even one pound in extra weight due to EMI shielding and now you are telling me that the inverter requires several hundred pounds of EMI shielding !?! On top of the normal mechanics just to house it? (Which you need anyway)
Nah, this sounds like the company making these inverters wants to invent a “killer application” for their product.
A public company in Vancouver that’s been around for awhile called Hillcrest Energy – ticker symbol HLRTF. It’s an interesting Video by TwoBit DaVinci. The company is paying for a media influencers campaign so this may be paid. Stock price was 28 cents U.S. today, so a literal penny stock. Not sure if the tech is as good as claimed in the pitch why they haven’t been bought out by Tesla or some other big player in this sector.
That sounds really improbably high.