Nangoku will build a mega solar plant in the Hioki, Kagoshima prefecture on the Island of Kyushu.

Masanori Fukui, executive officer for Nangoku said, "Our mega solar power plant will be built on a hilly region of Hioki with limited space, so we need to install the most efficient solar panels available. We chose the high-efficiency E20/327 Solar Panel by SunPower Corporation, because we can install more megawatts in this space constrained area, minimizing manpower costs and maximizing profits with higher energy output."

Nangoku has 12MW of solar power capacity in operation and 150-200MW planned in Kyushu area.

SunPower president, regions Howard Wenger said, "Our E20/327 solar panels offer greater efficiency and more reliability than other panels on the market today. Because of their efficiency, these panels are ideal for space constrained ground mounted projects. We are pleased that Nangoku chose our E20/327 solar panels for its mega solar power plant."