Intermountain Health announced on Monday the opening of Castle Solar Farm, located in Huntington. The 40-megawatt farm will produce enough power to offset the total annual use of 17 Intermountain Health facilities and will save more than $500,000 per year.

“This is one of the biggest sustainability investments we’ve ever made, and we will be seeing benefits for decades to come,” said Eric Liston, vice president of clinical services for Intermountain Health in a press release. “By making a cleaner environment in the communities that we serve, Intermountain is helping our patients live the healthiest lives possible.”

The solar farm will supply the facilities with renewable electricity for the next 20 years.

Hospitals especially use a lot of electricity because of the number of services and equipment provided 24 hours a day year-round. The amount of greenhouse gas emissions avoided by Intermountain switching to solar would be equal to removing 6,400 cars from the road.

Rocky Mountain Power will provide the transmission to the grid for power generated at the farm. The farm was constructed through D.E. Renewable Investments (DESRI), which will own and operate the site.

“Castle Solar marks the third project that DESRI has constructed in Emery County,” said Hy Martin, chief development officer of DESRI. “Our team is thrilled that Castle is now delivering renewable energy to PacifiCorp, the University of Utah, and Intermountain Health. Despite supply chain constraints in the past few years, we are glad to continue to deliver new projects for our partners.”

Solar farms include a large collection of solar panels that absorb energy from the sun. The energy is then converted into electricity which is sent to a power grid and distributed to businesses.