By Jessica Sier

Enel SpA has started construction of 74 turbines at the Cimarron Bend wind farm in Kansas, the company's subsidiary, Enel Green Power SpA, said on Thursday.

The Italian energy company said the expansion project will involve investment of over $281 million, and will increase capacity at the wind farm to 599 megawatts from 400 megawatts.

The expansion is supported by a 15-year 150 megawatt power purchase agreement with Evergy Inc., a utility company, and a 30 megawatt agreement with an agency of the Missouri Public Utility Alliance.

Once completed, the Cimarron Bend wind farm, located in Clark County, Kansas, will generate more than 2.7 terawatt hours per year, which is equivalent to avoiding 1.8 million tons of CO2 emissions, said Enel.

Enel has committed to full decarbonization by 2050.

Write to Jessica Sier at jessica.sier@wsj.com

Corrections and Amplifications

This article was corrected at 1520 GMT because it misstated that Enel SpA has committed to reducing carbon emissions 80% below 2005 levels by 2050. The company has a commitment to full decarbonization by 2050.