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The nominal battery voltage is 129.6 V with a maximum of 151.2V. Each Nomura MPPT has a maximum boost voltage of 33V. 151.2/33 = 4.58. Taking ceil(4.58) we get 5 which means we need at least 5 MPPT’s in one string.
According to the Maxeon Gen 3 Datasheet, under Standard Test Conditions, we should get (0.632 V * 5.89 A) 3.722 W of power from each cell. We assume (because manufacturer’s lie and connection impedances) that the actual output of each cell is 75% of that which is given in the datasheet which means we are getting 2.79 W of power per cell.
(To be continued)