Developer Acciona has given the green light for a 1GW wind farm that will be among the nation’s largest and provide an order bonanza for turbine manufacturer Nordex.

Infrastructure group Acciona said on Thursday it will build the MacIntyre project in the state of Queensland at a cost of A$2bn ($1.2bn) after reaching a deal with a state government-backed power generator over investment and offtake from the giant wind farm.

The full 1GW project is due to be online by 2024, said Acciona, which hopes to begin work at the site next year.

MacIntyre will use 180 Nordex Delta4000 wind turbines operating at up to 5.7MW, said the Spanish-based developer in a statement announcing the deal. The project would be another huge boost for the German OEM from Acciona, which is also its largest shareholder. Nordex had already this week revealed a 400MW order from Norway.

A spokesman for Nordex said the company's policy is not to discuss negotiations at an early stage and declined to comment on Acciona's statement.

Acciona said 100MW of the MacIntyre capacity will be owned by CleanCo, an entity set up by the Queensland state government, which will also take power from 400MW of the wider project.

The wind farm would become one of a clutch of 1GW projects advancing in Australia to help states meet their green power ambitions, and among the largest in the country and the southern hemisphere.

Queensland – which wants to source half its power from renewables by 2030 – is also set to host Forest Wind, a 1.2GW project, a joint venture between Siemens Financial Services and local renewables developer CleanSight.