General Electric, Google, and two Japanese partners will invest about $500m (£307.6m) in a wind farm under construction in Oregon, the partners said yesterday. The $2bn Shepherds Flat project, due to be completed next year, will stretch over 30 square miles of north-central Oregon and generate enough energy for 235,000 US homes. The site’s developer is Caithness Energy. GE said the collaboration is part of its strategy of drawing private investment to the US wind market. GE and Google are partnering with the US unit of Japan’s Sumitomo and a unit of Itochu.