A solar panel system and a mounting arrangement in a solar panel system

A solar panels system, which comprises

• solar panels arranged in the ground on the ground surface,
• thermal insulation materials arranged to at least some of the interspaces between the solar panels in the ground on the ground surface wherein solar panels and thermal insulation materials alternate in the solar panel system in parallel with the ground surface, and
• a cooling pipework to cool the solar panels, which cooling pipework is arranged in the ground beneath the solar panels and thermal insulation material, which cooling pipework is provided with a cooling medium circulation,
• wherein the cooling pipework is arranged in such a manner that the cooling pipework comprises pipes arranged close to the ground surface at the point of location of the solar panels or attached to the surface of the solar panel, which is facing the ground surface, and at the point of location of the thermal insulation material the pipes are arranged substantially deeper in the ground, whereby the depth of the pipe belonging to the cooling pipework varies in the ground in the direction of the surface of the solar panel system, where solar panels and thermal insulation materials alternate.