This might be old news?
https://formenergy.com/technology/battery-technology/
Iron air battery
Iron air battery
19.7kW PV SE, VI, HM, EN & DW
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
Veg patches & fruit trees
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
Veg patches & fruit trees
Re: Iron air battery
My understanding is that these batteries are astonishingly cheap per kWh and last forever, but the self-discharge rate is horrific.
You can get over the inefficiency if the power was otherwise "going to waste" (eg in cases of wind curtailment), but lithium batteries are much more efficient.
You can get over the inefficiency if the power was otherwise "going to waste" (eg in cases of wind curtailment), but lithium batteries are much more efficient.
12x 340W JA Solar panels (4.08kWp)
3x 380W JA Solar panels (1.14kWp)
5x 2.4kWh Pylontech batteries (12kWh)
LuxPower inverter/charger
(Artist formally known as ******, well it should be obvious enough to those for whom such things are important.)
3x 380W JA Solar panels (1.14kWp)
5x 2.4kWh Pylontech batteries (12kWh)
LuxPower inverter/charger
(Artist formally known as ******, well it should be obvious enough to those for whom such things are important.)
Re: Iron air battery
If you were using the stored energy during the day, and recharging at night would the 'horrific' self discharging rate be that much of an issue in reality?
I would think overall charge discharge efficency over 24 hours would be more relevant when cost be taken into account
I would think overall charge discharge efficency over 24 hours would be more relevant when cost be taken into account
Re: Iron air battery
From what I can find they only have a round trip efficiency of 50%, now I'm assuming thats only the battery efficiency which may not include AC to DC and DC to AC conversion which if true is pretty bad when compared with LA (90%) and lithium (95%+).
Also cycle life similar to LA Forklift cells, i.e. significantly less than lithium.
So as LA is extremely recyclable, I would say LA would be better and maybe more superior in self discharge but commercial battery companies have generally dumped LA in favour of lithium.
So maybe like flow batteries they might have a use in a very specific situation where there is a massive abundance of green overcapacity in a similar way to producing green hydrogen which has pretty poor conversion efficiency.
Also cycle life similar to LA Forklift cells, i.e. significantly less than lithium.
So as LA is extremely recyclable, I would say LA would be better and maybe more superior in self discharge but commercial battery companies have generally dumped LA in favour of lithium.
So maybe like flow batteries they might have a use in a very specific situation where there is a massive abundance of green overcapacity in a similar way to producing green hydrogen which has pretty poor conversion efficiency.
16.9kW PV > 109MWh generated
Ripple 6.6kW Wind + 4.5kW PV > 25MWh generated
5 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 510 m3
Ripple 6.6kW Wind + 4.5kW PV > 25MWh generated
5 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 510 m3