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Originally Posted by oil pan 4
Besides that chart being ancient history you are actually correct, batteries did get cheaper I knew that and thought it was common knowledge.
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Which is why I found you claiming the opposite confusing.
Quote:
Originally Posted by oil pan 4
I was talking about the last 4 to 5 years, the near future and specifically LiFePO4 not the entire "lithium ion" family history going back to the stone age. Since I have built my amp20 cell LiFePO4 battery these cells have not changed in price that much.
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I doubt they had any Li-Batteries in the stone age ... much less LiFePO4 in particular..
Not sure what your expectation was ?? .. 4-5 years is not very long.
LiFePO4 is only one of many completing battery chemistries .. each with different pros and cons .. The discussion at hand about renewable energy storage is not limited to any one specific battery .. Any battery type is fair game if it's specs are competitive ... any type of energy storage for that matter (even non-battery) is also 100% fair game .. thus this OP topic about a non-battery Renewable energy storage option.
Not much change in 4-5 = they got less expensive .. as I pointed out before .. In order to hold exactly the same raw $/wh price , they would have to become less expensive at the rate of inflation .. In order to hold 100% exactly the same raw price $/wh bought in 2010 vs bought again 4 years latter in 2014 would require (due to inflation) over that same period , for the same batteries to have become roughly ~10% less expensive ... in just those 4 years .. any raw decrease in $/wh , over that same period, would be an additional (on top of that ~10%) .. in how much less expensive they became over that period.