This Walmart video shows rooftop and ground-mounted solar panels at some of its stores and distribution centers in the United States. The company recently announced plans to expand its solar program to 21 sites in Illinois.By Teri Maddox

BY TERI MADDOX

tmaddox@bnd.com

November 16, 2018

The nation’s largest retailer is joining the solar boom in Illinois next year.

Walmart has reached an agreement with a California company to install solar systems at two distribution centers and 19 stores, including those in Belleville, O’Fallon, Sparta and Litchfield. It’s billed as a way to save money on electricity and help the environment by reducing carbon emissions.

The move was prompted by the state’s new Adjustable Block Program, which provides incentives for commercial and residential rooftop solar projects, as well as community solar farms.

“We can meet or beat our current cost of energy (under the agreement),” said Katherine Canoy, Walmart’s senior manager for renewable energy, speaking by phone from Bentonville, Arkansas. “From a business perspective, it makes sense for us on a lot of levels.”

The company already has solar systems at about 350 of its 5,000 sites in the United States, including Walmart and Sam’s Club stores. Canoy said installations don’t have a direct effect on prices, but the company’s increasing use of renewable wind and solar energy will help keep them low in the long run.

For Walmart’s first 21 solar projects in Illinois, the retailer is partnering with SunPower, a company based in San Jose, California. It designs, installs and maintains commercial solar systems all over the country, often combining rooftop and ground-mounted solar panels.

Most customers are able to generate 40 to 75 percent of their electricity with solar, said Robert Rogan, SunPower’s senior director of strategy. Walmart generates 5 to 70 percent at its existing solar sites.

“It really varies from store to store, depending on how much of the roof space we can utilize and also how much energy that store is using,” Rogan said.

Some Walmart stores have skylights and air-conditioning units on their roofs, and climate can affect how much electricity is needed to heat and cool buildings.