A power generation module connected body (10, 10a, 10b, 10c, 10d) comprising a panel connected body, the panel connected body, comprising: a plurality of thin panels arranged in a matrix of m rows and n columns, where m ≥ 2 and n ≥ 2; and a connection portion (11, 11a, 11b, 11c, 11d) connecting the plurality of thin panels in a row direction and a column direction, wherein the panel connected body is foldable between adjacent thin panels of the plurality of thin panels, the connection portion (11, 11a, 11b, 11c, 11d) has, alternately in the column direction, a first type row satisfying relationships D l ≥ 2L and D y ≥ D y-1 + 2L and a second type row satisfying relationships D n ≥ 2L and D y ≥ D y+1 + 2L, where D y is a length of the connection portion (11, 11a, 11b, 11c, 11d) between thin panels adjacent in the column direction at a yth column, and L is a thickness of each of the plurality of thin panels in a vertical direction, the connection portion (11, 11a, 11b, 11c, 11d) has, alternately in the row direction, a first type column satisfying relationships C l ≥ 2L and C x ≥ C x-1 + 2L and a second type column satisfying relationships C m ≥ 2L and C x ≥ C x+1 + 2L, where C x is a length of the connection portion (11, 11a, 11b, 11c, 11d) between thin panels adjacent in the row direction at an xth row, and in the connection portion (11, 11a, 11b, 11c, 11d), a first row is the first type row and a first column is the second type column, or the first row is the second type row and the first column is the first type column and wherein the plurality of thin panels are power generation modules (P, P'), and the connection portion (11, 11a, 11b, 11c, 11d) includes a conductor electrically connecting the power generation modules (P, P'). a plurality of thin panels arranged in a matrix of m rows and n columns, where m ≥ 2 and n ≥ 2; and a connection portion (11, 11a, 11b, 11c, 11d) connecting the plurality of thin panels in a row direction and a column direction, wherein the panel connected body is foldable between adjacent thin panels of the plurality of thin panels, the connection portion (11, 11a, 11b, 11c, 11d) has, alternately in the column direction, a first type row satisfying relationships D l ≥ 2L and D y ≥ D y-1 + 2L and a second type row satisfying relationships D n ≥ 2L and D y ≥ D y+1 + 2L, where D y is a length of the connection portion (11, 11a, 11b, 11c, 11d) between thin panels adjacent in the column direction at a yth column, and L is a thickness of each of the plurality of thin panels in a vertical direction, the connection portion (11, 11a, 11b, 11c, 11d) has, alternately in the row direction, a first type column satisfying relationships C l ≥ 2L and C x ≥ C x-1 + 2L and a second type column satisfying relationships C m ≥ 2L and C x ≥ C x+1 + 2L, where C x is a length of the connection portion (11, 11a, 11b, 11c, 11d) between thin panels adjacent in the row direction at an xth row, and in the connection portion (11, 11a, 11b, 11c, 11d), a first row is the first type row and a first column is the second type column, or the first row is the second type row and the first column is the first type column and wherein the plurality of thin panels are power generation modules (P, P'), and the connection portion (11, 11a, 11b, 11c, 11d) includes a conductor electrically connecting the power generation modules (P, P').