A 40 kWh LiFePO4 battery + grid tie inverter can be had for much less. Safe, well tested and already in high volume manufacturing. Shipped to your door tomorrow.
A 40 kWh LiFePO4 battery + grid tie inverter can be had for much less. Safe, well tested and already in high volume manufacturing. Shipped to your door tomorrow.
If they could get anywhere near lithium battery efficiency for a round trip then the breakthrough in fuel cell efficiency (and possibly also electrolyzer efficiency) required to do that would be the headline.
And if they can't, then they'd probably need to be implausibly low cost to make it worthwile, and they don't seem to be that either.
Maybe there's some way of using the waste heat that improves it? Still seems unlikely.
So just an expensive, awkward low efficiency battery, when cheap, commodity, high-efficiency batteries are available.
I have a ~60kWh battery sitting around in my garage, that I typically only use 10% for daily driving.
https://signaturesolar.com/eg4-ll-lithium-battery-24v-200ah/
I get Tesla has so many investements and supply setup to enable that but... 3x as expensive? From a direct-from-china supplier basically?
It annoys me how much battery costs are still sky high for consumers of batteries for all the different cases (lawnmowers, snow blowers, etc), but it shows how much future cost drops will happen with battery-electric goods in the future as supply continues to be scaled.
200 wh/kg LFP and 140 whk/kg sodium ion (next year in production, allegedly) should make for some huge cost savings to so many applications.
You know, if they passed savings to the consumer. Which is probably a pipe dream.
Also, https://about.bnef.com/blog/battery-pack-prices-cited-below-...
For reference, I'm currently waiting for delivery of a 10kWh battery that will cost me about €6100 (including VAT, excluding installation and government subsidy).