A date is locked in for a citizens initiated referendum on asset sales. Voters will get the chance to have their say on the government’s plan to sell up to 49 per cent of Meridian Energy, Mighty River Power, Genesis Power, Solid Energy, and Air New Zealand via a postal ballot opening on November 22 and closing on December 13. The Keep Our Assets coalition collected 327,224 signatures on the petition which has forced the referendum. Included in the coalition is a petition launched by Mt Roskill MP Phil Goff in his electorate last year. His petition collected 12,000 signatures - which is more than any other electorate, Mr Goff says. The referendum will cost $9 million and is non binding. Prime Minister John Key has previously said the result will be ignored. The sale of assets has already begun with an offer to buy shares in Meridian Energy going out to investors on Monday.