Abstract: The invention relates to a service device for maintenance of a solar panel arrangement, comprising a service unit for maintenance of at least one surface of the solar panel arrangement, a guiding unit for guiding the service unit with respect to the solar panel arrangement, and a driving unit for moving the service unit with respect to the solar panel arrangement, wherein the service unit comprises a first engagement section and a second engagement section, wherein the guiding unit is attachable to the first engagement section, the guiding unit being configured for direct engagement with an edge of the solar panel arrangement, wherein the driving unit is attachable to the second engagement section, and wherein the second engagement section is displaceable with respect to the first engagement section by the driving unit.