Solar cell module, multi-junction solar cell module, and photovoltaic power generation system

A solar cell module comprising:

• a substrate;
• a first solar cell provided on the substrate, the first solar cell comprising a first upper transparent electrode layer, a first power generation layer, and a first lower transparent electrode layer;
• a second solar cell provided on the substrate, adjacent to the first solar cell, the second solar cell comprising a second upper transparent electrode layer, a second power generation layer, and a second lower transparent electrode layer;
• and
• a first metal interconnection wiring that electrically connects the first solar cell and the second solar cell, wherein
• the first upper transparent electrode layer and the second upper transparent electrode layer are provided on the light incident side,
• the first solar cell and the second solar cell are arranged in a first direction extending along a width direction of the first solar cell,
• the first lower transparent electrode layer, the first power generation layer, and the first upper transparent electrode layer are stacked in that order from the substrate side,
• the second lower transparent electrode layer, the second power generation layer, and the second upper transparent electrode layer are stacked in that order from the substrate side,
• the first metal interconnection wiring has a portion that extends in a stacking direction of the second upper transparent electrode layer, the second power generation layer, and the second lower transparent electrode layer,
• the first lower transparent electrode layer and the second upper transparent electrode layer are electrically connected through the first metal interconnection wiring, and
• the first metal interconnection wiring is physically separated from the first upper transparent electrode layer.