1. A photovoltaic module comprising 126, 138, or 150 back-contact half-cells, wherein the back-contact half-cells are arranged in 6 columns and a plurality of rows, each column comprising an equal odd number of half-cells and each row having an equal number of half-cells, wherein the back-contact half-cells are arranged into a plurality of strings, wherein each string in the plurality of strings has an odd number of back-contact half-cells, wherein each string in the plurality of strings spans two columns, wherein each column includes a portion of back-contact half-cells from two strings of the plurality of strings, and wherein a connection point between the two strings of the plurality of strings in each column is staggered about a line of symmetry of the photovoltaic module in adjacent columns.