Walgreens, a US-based drugstore chain, will install solar systems at 22 stores across 14 different cities in Colorado over the next few months.

SolarCity will implement these solar systems which will reduce around 47.5 million pounds of CO2 emissions over the next 20 years.

Commenting on the implementation, Walgreens Energy and Sustainability director Menno Enters said that SolarCity is helping the company by providing clean energy and contributing to the local economy.

SolarCity Colorado regional vice president Eric Wittenberg said, "The adoption of solar by companies like Walgreens also has an economic impact in the community as it drives the growth of local jobs. Since we launched our services in Colorado in 2009, our two local operations centers in Denver and Parker now employ more than 180 people."

The implementation of new solar systems in Colorado has brought Walgreens closer to reaching the US Department of Energy’s Better Buildings Challenge.

The company is aimed at reducing its energy utilization by 20% by the year 2020.