Origin Energy Limited (ORG) announced a supply agreement with ACCIONA Energy to build Australia’s largest wind farm at Waubra in western Victoria. Origin said the farm would have enough green energy to provide for 143,000 households each year.

Under the agreement, Origin said it would be supplied with renewable energy and renewable energy certificates to support its mandatory obligations under the government’s renewable energy target.

”Origin has the largest number of green customers in Australia, with more than 423,000 accredited GreenPower and GreenGas accounts,” Origin said.

The companies said that construction of the Waubra Wind Farm was currently underway, with plans to complete the installation of the 128 ACCIONA Windpower 1.5 MW wind turbines by the end of this year. The farm is due to be commissioned mid-2009. 

At 1419 AEST shares in ORG were 27c higher at $15.59.