Disclosed are a reflector for a bifacial solar module and a bifacial photovoltaic system including the same, wherein the reflector includes a reflecting panel configured to reflect sunrays toward back surfaces of a first bifacial solar module and a second bifacial solar module which are located higher than the ground, a mobile cart configured to support the reflecting panel and be movable below and between the first bifacial solar module and the second bifacial solar module, and a control portion configured to control a position of the mobile cart to maximize power generation amounts of the first bifacial solar module and the second bifacial solar module.

A double-sided light-concentrating solar apparatus and system. The apparatus comprises a front-side concentrating groove (110), a back-side concentrating groove (110′), and a photovoltaic panel (120) provided at the bottom of each concentrating groove. Each concentrating groove comprises two groove walls (111, 112; 111′, 112′) extending along the bottom; opposite surfaces of the two groove walls are reflecting surfaces; the open side of each of the two groove walls forms an opening of the concentrating groove; the opening direction of the front-side concentrating groove (110) is opposite to the opening direction of the back-side concentrating groove (110′). According to the double-sided concentrating solar device, sunlight (LL) can be concentrated and received from two different directions, thereby enhancing direction adaptability and expanding device mounting methods.

A double-sided light-concentrating solar apparatus and system. The apparatus comprises a front-side concentrating groove (110), a back-side concentrating groove (110′), and a photovoltaic panel (120) provided at the bottom of each concentrating groove. Each concentrating groove comprises two groove walls (111, 112; 111′, 112′) extending along the bottom; opposite surfaces of the two groove walls are reflecting surfaces; the open side of each of the two groove walls forms an opening of the concentrating groove; the opening direction of the front-side concentrating groove (110) is opposite to the opening direction of the back-side concentrating groove (110′). According to the double-sided concentrating solar device, sunlight (LL) can be concentrated and received from two different directions, thereby enhancing direction adaptability and expanding device mounting methods.

This invention provides a solar fluid heating panel with fluid conduits that allow a fluid to be heated by the sun. It also provides a mounting system and weather sealing system that allow the panels to replace a traditional roof. The roof replacing panels can be installed quickly using mounting brackets attached to roof purlins. The panels can allow natural ambient light to enter the building while harnessing the sun's energy to heat fluid within the conduits.