Just bought and installed 20kWh of gently used AGM batteries, hopefully by the time they wear out they’ll have been the last lead-acid cells I own. Nice to see sodium actually hit production.
The claimed 10x C rate of lithium would be insane as lithium already has great power density. At that point it’s practically a capacitor, and could even be used to replace the much hated automotive starting batteries. Wonder how it handles low temperatures.
I saw 5 for air-air and was impressed. Then I see SCOP? Oh please. Why not change the scale again to make sure nobody knows what a good value is. Just like SEER on an air conditioner.
SCOP varies depending on environmental conditions!
Real COP or go home IMO. Watts out/watts in, no fudging numbers to confuse consumers again.