Solar cell structural body, solar cell array and sunlight power generation system
AssigneeCanon Kabushiki Kaisha
InventorsMasaaki Matsushita, Akiharu Takabayashi, Hidehisa Makita, Takaaki Mukai, Shigenori Itoyama
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Abstract
A solar cell structural body having a solar cell arranged on a concrete retaining body comprising a concrete prepared from a mixture comprising at least a cement, water and an aggregate, such that part of a conductor portion of the solar cell contacts the concrete retaining body. The concrete has a resistivity in a range of from 9×103 to 120×103 Ω·cm. A solar cell array in which the solar cell structural body is used, and a sunlight power generation system in which the solar cell structural body is used.
Claims12
A solar cell structural body having a solar cell arranged on a concrete retaining body comprising a concrete prepared from a mixture comprising at least a cement, water and an aggregate, such that part of a conductor portion of said solar cell contacts said concrete retaining body, characterized in that said concrete has a resistivity in a range of from 9×103 to 120×103 Ω·cm, wherein the relation equation t>1307.9(0.71+0.016×θ)/(d×g×cos θ) is established, with d being the density of said concrete retaining body measured in Kg/m3, θ being the inclination angle of said concrete retaining body from a ground face, t being the thickness of said concrete retaining body measured in meters, and g being the acceleration of gravity measured in m/s2.
A solar cell array having a plurality of solar cell structural bodies connected with each other in series connection, each of said plurality of solar cell structural bodies having a solar cell arranged on a concrete retaining body comprising a concrete prepared from a mixture comprising at least a cement, water and an aggregate, such that part of a conductor portion of said solar cell contacts said concrete retaining body, wherein said concrete has a resistivity in a range of from 9×103 to 120×103 Ω·cm, and wherein the relation equation t>1307.9(0.71+0.016×θ)/(d×g×cos θ) is established, with d being the density of said concrete retaining body measured in Kg/m3, θ being the inclination angle of said concrete retaining body from a ground face, t being the thickness of said concrete retaining body measured in meters, and g being the acceleration of gravity measured in m/s2.
A sunlight power generation system having a connection body in which a plurality of solar cell structural bodies are electrically connected and said connection body has a positive electrode terminal and a negative electrode terminal which are connected to an inverter having a ground sensor accommodated therein, each of said plurality of solar cell structural bodies having a solar cell arranged on a concrete retaining body comprising a concrete prepared from a mixture comprising at least a cement, water and an aggregate, such that part of a conductor portion of said solar cell contacts said concrete retaining body, wherein said concrete has a resistivity in a range of from 9×103 to 120×103 Ω·cm, and wherein the relation equation t>1307.9(0.71+0.016×θ)/(d×g×cos θ) is established, with d being the density of said concrete retaining body measured in Kg/m3, θ being the inclination angle of said concrete retaining body from a ground face, t being the thickness of said concrete retaining body measured in meters, and g being the acceleration of gravity measured in m/s2.
Dependencies are inferred from the claim text.