You could be right. However I don't believe Provimi really put a lot of thought into the "mantra" as, when it was first trotted out, they had no clue as to how much anything would cost to manufacture. It just sounds cool so he uses it.
My example on Oct 30 at 6:31 erroneously used 35% when the nr is only 23% so we would be looking at $1.30 less 23% = $1 to produce something twice as powerful. However the nr does not discuss the SE productivity % so maybe that was left out. Additionally, a bs cell is more efficient than a regular cell, and my example does not take that into account. Twice the power comes from the tandem + adding bs and se improvements may make it 2.30 the power of a normal cell. With the 23% cost savings that might get them up to double power at half cost. That is enough theory with no solid numbers but I did it to try to reconcile the "half cost" claim so I will wait to see what else comes up if they are able to execute their other goals.
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