Quote:
Originally Posted by Piotrsko
I believe the study with vehicle packs was done, but the source was biased IIRC and the conclusions suspect. Kinda big losses going back & forth between wall and pack.
There are many homes with whole house lead acid batteries in the 20+ kwh range in use right now.
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Li-ion is very efficient, which cannot be said of lead acid. Lead acid is not tolerant of being discharged without accumulating wear, which means they need to be full most of the time. The problem is, they are something like 50% efficient at accepting a charge when near full, and require constant trickle charging to keep them healthy.
I'd be curious to read that study, because I can't imagine it to be accurate. You should be able to achieve somewhere around 80% efficiency from the round trip journey charging/discharging battery back to the grid.
Quote:
Originally Posted by oil pan 4
The vehicle to grid thing is dead as far as I can tell.
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How so? It was never alive, so it's hard to say it's dead in my view. Improbable perhaps, but not dead. Curious what makes it improbable?