Solar power generation system and reflector for solar power generation system

A solar power generation system provided with a plurality of solar power generation panels installed via trestles wherein an upper surface of a power generation surface is made to incline towards a sunlight incidence direction at a predetermined angle, wherein

• said solar power generation panels comprise double-sided incidence-type solar power generation panels provided with power generation surfaces on both said upper surface and a lower surface,
• said trestles are set at a predetermined height and a light passage space is provided below a lower surface of power generation surface of said double-sided incidence-type solar power generation panels,
• said solar power generation system comprises a reflector laid so as to cover a site ground underneath said double-sided incidence-type solar power generation panels and the periphery thereof,
• wherein said reflector is provided with
• a reflecting layer having a light-reflecting surface comprising a sheet material with light-reflective colour wherein a surface side facing said lower surface of power generation surface of said double-sided incidence-type solar power generation panels reflects directly incident light of sunlight and scattered light of sunlight towards said lower surface of power generation surface, wherein the sheet material of said reflecting layer has a thickness in a range of 0.5 mm to 3.0 mm, and wherein the sheet material of said reflecting layer is a resin sheet or a rubber sheet, and
• a weed barrier layer comprising a weed barrier sheet material wherein a back surface side faces said site ground and is in contact with said site ground,
• wherein said reflector is integrally formed by lamination of said reflecting layer and said weed barrier layer;
• and
• wherein each of said reflecting layer and said weed barrier layer contains both a low density polyethylene and a linear low density polyethylene, and
• wherein a wt % of said linear low density polyethylene in said weed barrier layer is greater than a wt % of said linear low density polyethylene in said reflecting layer.