A device includes a first capacitive energy module and a second capacitive energy module. The first capacitive energy module comprises a first tray that is configured to house a first plurality of capacitive energy components, a first electrode, and a second electrode. The second capacitive energy module comprises a second tray that is configured to house a second plurality of capacitive energy components, a third electrode, and a fourth electrode. The first capacitive energy module is connected to the second capacitive energy module via a plug connector that makes a solid connection.