Visit to Plant

Sharp Contrast in Solar Power Generation Amounts on 2 Islands (page 2)

Panels inspected on-site

2019/07/19 23:03
Shinichi Kato, Nikkei BP Intelligence Group, CleanTech Labo
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When setting up the solar panels, measures against uneven ground settlement became important. As a measure, the number of solar panels on a mounting system was reduced to six with a view to limiting panels that would be affected if uneven ground settlement occurs (Fig. 3).

Fig. 3: Unique shape of foundations (source: Kawasaki City)

At the Ukishima Solar Power Plant, 18 single crystal silicon-type solar panels were connected in series per each DC 600V-supported circuit (string). Each of the 280 combiner boxes in the site receives power from seven to eight strings (unit of connected solar panels).

Toshiba Corp provided engineering, procurement and construction (EPC) services at the mega-solar plant on Ukishima. A total of 37,926 single crystal silicon-type solar panels (198W/unit) manufactured by Sharp Corp were arrayed across the site.

As for PV inverters, 28 units with a rated capacity of 250kW produced by Toshiba Mitsubishi-Electric Industrial Systems Corp (TMEIC) were adopted.

Meanwhile, Hitachi Ltd provided EPC services at the mega-solar plant on Ohgishima. A total of 63,792 polycrystalline silicon-type solar panels of Kyocera Corp were arrayed, while 26 units of Hitachi's PV inverters with a rated capacity of 500kW each were adopted.