It's not really financially viable. Michigan spent $1.9MM for just 1 mile of wireless roadway as a pilot in 2023.
It's not really financially viable. Michigan spent $1.9MM for just 1 mile of wireless roadway as a pilot in 2023.
All the cool things are going elsewhere. Meanwhile, we get a meaningless “improvement” to an ICE engine that’s still not even 30% efficient.
I love the idea but I can’t imagine it working well. If I can do some math
But you don’t need a high-power charge. If I’m driving 6 hours, a 25 kW charge for those 6 hours would give me 150 kWh. That’s more than an entire battery (plus some) of recharge for the day, which means range more than doubles.I love the idea but I can’t imagine it working well. If I can do some math, just imagine you’re going 60mph (a mile a minute), you’d have to have 5 miles of very expensive road just to get a 5 minute charge, and I’m sure you’re not getting a high power fast charge from it. Im all for spending some money for R&D for it, in the hope that someday it might make sense, but im not too hopeful to see it in the next decade.
"Lucid targets industry-first self-driving car technology with Nvidia"
Gotta love mathematics and facts.But you don’t need a high-power charge. If I’m driving 6 hours, a 25 kW charge for those 6 hours would give me 150 kWh. That’s more than an entire battery (plus some) of recharge for the day, which means range more than doubles.
While road tripping, that’s huge.
If I normally stop every 2.5 hours, that’s a total recharge of about 62 kWh for that leg.
If in those 2.5 hours, I drive 80 mph and get a really bad 2.0 miles/kWh, I use 100 kWh for the 200 miles I drove.
So I have a net loss of ~38 kWh.
Let’s assume I’m in one of the middle legs (so I started that leg with 80% state of charge) and my battery size is 130 kWh.
That means the end of the leg I’m down to 0.8*130 kWh - 37.5 kWh = 66.5 kWh = 51% state of charge. So for the next leg, I only need to charge up from 51% to 80%, or ~38 kWh. On a 350 kW charger, that will take less than 10 minutes (assuming lower than peak average charge rate), instead of about 15-20 minutes.
The developers claim a charge rate of 200 kW. Which is way more than you use while driving at 80 mph.
All of that said…I don’t think it will work in the US. It could maybe work in the EU where they spend up to 5-6x more on their roadway infrastructure maintenance and improvements than we do. It would likely work in China where they spend nearly 10x on their roadway infrastructure.
MATH!!Gotta love mathematics and facts.
I love Kei cars
But hey. We are good now. We can drill forever in Alaska so no need for EV improvementsAll the cool things are going elsewhere. Meanwhile, we get a meaningless “improvement” to an ICE engine that’s still not even 30% efficient.
What a state…it feels like we're falling weeks behind every day.
I just can’t learn to like it. As a designer some of the proportions are just off
Yeah, but you’re assuming that the full length of the roadway is instrumented, which is hugely expensive and means power delivered along hundreds of miles, and you’re not the only car on the road, so to give everyone 25kw it’s gonna add up fast. Not to mention that stationary wireless charging for EVs is still in its infancy. Even in Europe or China, I’d be really impressed if something happens in the next 10 years. In the US, probably not in my lifetime. But if we don’t start working on the idea and evaluating feasibility and addressing such issues, it’ll never happen, so I’m all in favor of R&D spending, maybe my offspring will someday reap the benefits.But you don’t need a high-power charge. If I’m driving 6 hours, a 25 kW charge for those 6 hours would give me 150 kWh. That’s more than an entire battery (plus some) of recharge for the day, which means range more than doubles.
While road tripping, that’s huge.
If I normally stop every 2.5 hours, that’s a total recharge of about 62 kWh for that leg.
If in those 2.5 hours, I drive 80 mph and get a really bad 2.0 miles/kWh, I use 100 kWh for the 200 miles I drove.
So I have a net loss of ~38 kWh.
Let’s assume I’m in one of the middle legs (so I started that leg with 80% state of charge) and my battery size is 130 kWh.
That means the end of the leg I’m down to 0.8*130 kWh - 37.5 kWh = 66.5 kWh = 51% state of charge. So for the next leg, I only need to charge up from 51% to 80%, or ~38 kWh. On a 350 kW charger, that will take less than 10 minutes (assuming lower than peak average charge rate), instead of about 15-20 minutes.
The developers claim a charge rate of 200 kW. Which is way more than you use while driving at 80 mph.
All of that said…I don’t think it will work in the US. It could maybe work in the EU where they spend up to 5-6x more on their roadway infrastructure maintenance and improvements than we do. It would likely work in China where they spend nearly 10x on their roadway infrastructure.
I like those better than slate, though I’d be happy if either succeededI love Kei cars
Oh, absolutely. This is pure fantasy. But the goal of these companies isn't a 5-mile strip. It's all of the highways.Yeah, but you’re assuming that the full length of the roadway is instrumented, which is hugely expensive and means power delivered along hundreds of miles, and you’re not the only car on the road, so to give everyone 25kw it’s gonna add up fast. Not to mention that stationary wireless charging for EVs is still in its infancy. Even in Europe or China, I’d be really impressed if something happens in the next 10 years. In the US, probably not in my lifetime. But if we don’t start working on the idea and evaluating feasibility and addressing such issues, it’ll never happen, so I’m all in favor of R&D spending, maybe my offspring will someday reap the benefits.