CHN Energy has connected the 3 GW Mengxi Lanhai solar facility to the grid after 14 months of construction. The project in Ordos, Inner Mongolia, required a total investment of approximately CNY 12 billion ($1.6 billion).

A large project with cost data.

At $1.6B project cost for 3gw, that is a little over 50c/watt, and would typically produce energy costs excluding financing of 1c/kwh.