. "482.0"^^ . . . . . "3337.0"^^ . . "1999Z"^^ . "6058.0"^^ . "1678.0"^^ . . "1999-04-01Z"^^ . . "Mighty River Power Limited is a New Zealand electricity generation and electricity retailing company. It was formed from the breakup of the Electricity Corporation of New Zealand (ECNZ) in 1999 as a result one of the reforms of the New Zealand Electricity Market and corporatised to become a state-owned enterprise with its own board of directors and Ministerial shareholders."@en . "Mighty River Power"@en . "47.0"^^ .