3 ms·
One catch would be the massive strain on the AC grid; with an EV consuming some 200Wh or so/km, 1200km equals a capacity of approx. 240kWh. 240kWh in 10 minute
by lb1lf 3y ago
One catch would be the massive strain on the AC grid; with an EV consuming some 200Wh or so/km, 1200km equals a capacity of approx. 240kWh.
240kWh in 10 minutes translates into 1,44MW - for charging one car! (Assuming 100% efficiency.)
The bottleneck when installing EV charging stations in many parts of Norway at the moment is simply getting the AC oomph needed to the right place. Our electrical ferries (much bigger load than an EV) sidestep this issue by having huge battery banks shoreside, which are being charged at a uniform rate, then once the ferry connects to the shore terminal, it charges off the batteries shoreside rather than the grid as such. Presumably something similar will have to be thought out to take full advantage of solid state batteries.
- mywacaday 3y agoSounds like a win for the battery manufacturer if there has to be a close to matching static capacity of batteries or maybe self driving to somewhere overnight for a quick 10 min charge would be the answer.
- h2odragon 3y agohttps://www.cat.com/en_US/products/new/power-systems/electric-power/diesel-generator-sets/1000028937.html https://www.cat.com/en_US/products/new/power-systems/electri... no price listed, alas. edit: did find a fuel consumption number; 50% load for a 3MW model should be 45-50gal for 10min (quotes 467gal/hr). so ~14 miles/gallon or 6 km/liter
- maherbeg 3y agoThis is likely how most charging stations with this power requirement will work too. They will have on-site batteries that are charged at a slower rate to help increase the overall charge speed. Charging stations aren't used 24/7 and this additional battery capacity can absorb day time solar power as needed.