4 ms·
> hold a charge for around a hundred hours Meaning background discharge is quite high, impacting efficiency. Good enough to smooth daily peaks though Also, 10
by out_of_protocol 2y ago
> hold a charge for around a hundred hours
Meaning background discharge is quite high, impacting efficiency. Good enough to smooth daily peaks though
Also, 10x cheaper than pricy
li-ion might not be enough, there are lots of other [weird] solutions, like pumping water up. Better question - how many cycles will battery last? This impacts price a lot
- alwa 2y agoShuttling water around, though, depends on having a bucket big enough and high enough to put enough water into to matter. A big ol’ bucket of rust might be easier to site if you don’t have a dam or a hillside reservoir handy.
- giaour 2y agoI think this was just poor wording in the article. My local power company (Dominion Energy VA) recently started a huge iron-air battery project because the technology supports 100 hours of active discharge [0]. I'm sure there's some background discharge, but it takes a lot longer than 100 hours for iron to naturally rust through. [0]: https://www.pbs.org/wgbh/nova/article/iron-air-battery-renewable-grid/ https://www.pbs.org/wgbh/nova/article/iron-air-battery-renew...
- NullPrefix 2y agoPumping water up requires massives amounts of water, rarely available for regular homes