A Japanese company which helped build a pilot hydrogen plant near Taupo is investing on a second energy project at Ports of Auckland, Stuff reports. Obayashi Corporation and iwi-based Tuaropaki Trust are preparing to open what’s described as the country’s first megawatt-class green hydrogen facility. The joint venture, Halcyon Power, is expected to formally open a pilot plant in a few weeks. In the interim, Obayashi has become an equity partner in Ports of Auckland’s hydrogen project.