A cable retention clip can include at least one body defining at least two of cable retention channels that are arranged to have parallel channel axes. Each cable retention channel has an inlet opening extending a length of the respective cable retention channel so that a lateral cross- section of each cable retention channel forms a C-shape. Each cable retention channel can be separated from an adjacent cable retention channel by a cable separator. The body also defines at least a pair of the cable retention channels forming a ω shape. The cable retention channels can include two cable retention channels having the same size. A cable arrangement can include the cable retention clip and at least two solar cables. A solar installation can include the cable arrangement and at least one solar panel operably coupled with at least one of the solar cables.