[quote=@Senhara] Ohhh that makes more sense, and kY can't go over even if it's conditional? [/quote] Normally no, you can't use more kY than you have ENE - the one exception to this is the Auxiliary Battery subsystem, which requires it to be manually "turned on" and thus lets you allocate more ENE to kY. I apologize for all the confusion, as most of the creation is still in notes and not in presentable-format like everything else is thus far.