It is a regional NSW project closer to the Queensland border than to Canberra, but within months the Sapphire Wind Farm will generate power for around 49,000 ACT homes.

After a flight to Armidale and long car ride west of Glen Innes, climate change minster Shane Rattenbury toured the facility on Thursday.

Shane Rattenbury MLA touring through Sapphire Wind Farm. Credit:ACT Greens

The wind farm will be NSW's largest once it is completed.

It is owned by CWP Renewables, a joint venture between two European renewable energy companies, and was one of two successful projects in the ACT's 2015 second wind auction.