Enel Green Power North America (EGPNA) has started construction on the $610m Cimarron Bend windfarm in Kansas, US.
Located in Clark County, the project is owned by EGPNA's subsidiary Cimarron Bend Wind Project.
Upon completion, the new 400MW facility is said to become Enel's largest windfarm in operation.
Enel global renewable energies division head Francesco Venturini said: "This project marks a major milestone for Enel, as not only will Cimarron Bend be the largest asset in our portfolio, but it also opens our renewable energy to new partners and uses.
"As we continue to invest and grow in the US, we aim to cooperate with companies and partners that share the same vision for a more sustainable future."
Expected to become operational in 2017, the windfarm will generate nearly 1.8TWh of clean electricity per annum, which will be sold to Google and the Kansas City Board of Public Utilities (BPU) under two separate long-term power purchase agreements.
Electricity generated at the facility will be enough to power more than 149,000 homes a year, while cutting around 1.3 million tonnes of CO2 emissions.
The Cimarron Bend is the first of Enel's North American windfarms to sell a portion of the power produced to a corporate off-taker.
The project is financed through Enel Group's own resources.
EGPNA already owns and operates four wind farms in Kansas and is the largest operator in the state's wind sector with a total operating capacity of close to 1GW.
It has a total installed capacity of more than 2.5GW in 21 US states and two Canadian provinces of which more than 2GW comes from wind, 316MW from hydro, 72MW from geothermal and 29MW from solar.
Enel Green Power Chile (EGPC) has recently connected the 79MW Pampa Norte photovoltaic (PV) solar plant to the grid.
Located in the country's Antofagasta Region, the $150m project will deliver power to Chile's Central Region Interconnected System (SIC - Sistema Interconectado Central).
The project features more 258,000 polycrystalline silicon photovoltaic modules installed over an area of around 290ha.