A Colorado ski resort is introducing a new way to keep chairlifts running during power outages without relying on traditional diesel generators.
Aspen Snowmass announced Thursday, October 29, that its Elk Camp chairlift at Snowmass has been equipped with a battery backup system, making it what the resort describes as the world’s first battery-backed chairlift.
The new system replaces a diesel backup generator that previously produced approximately 144 tons of carbon emissions annually. In addition to providing emergency power, the battery will serve a second purpose when the lifts aren’t operating.
How the Battery-Backed Chairlift Works
Chairlifts typically operate using electricity supplied through the power grid, with backup systems available to help operators respond to power interruptions. At Snowmass, the new battery provides an alternative to the diesel generator previously used for backup power.
The installation is part of a broader effort to reduce the environmental impact of operating a major ski resort while maintaining reliable lift service. The battery also has a role beyond the ski mountain. Aspen Snowmass says local utility provider Holy Cross Energy will draw stored electricity from the system outside lift operating hours, returning that power to the grid to help reduce peak electricity demand.
“This new battery is yet another investment in reliable, clean mountain infrastructure, and a clear example of Aspen One’s commitment to sustainability. Outside of operating hours, utility provider Holy Cross Energy will pull stored power from the battery back into the grid, reducing peak demand and helping Holy Cross provide 100% clean energy to its entire network. “
The arrangement allows the same equipment to provide backup power for skiers and snowboarders while supporting the local electrical network when the chairlift isn’t running.
A New Chapter for Snowmass Lift Infrastructure
The battery system is installed on Snowmass’ Elk Camp chairlift, a high-speed six-passenger lift that debuted during the 2025-26 season. The previous Elk Camp chairlift was relocated to Powderhorn Mountain Resort in western Colorado, where it is being installed as the replacement for the West End Double.
That project was nearing completion in early October, while Snowmass continued work on modernizing its own lift infrastructure. The battery installation is separate from the new Nell Bell chairlift project at Aspen Mountain, which will replace two older lifts with a single high-speed quad.
Aspen Snowmass has not provided detailed public specifications for the battery’s storage capacity or how long it can operate the Elk Camp chairlift during an extended power outage. The project demonstrates how battery storage could eventually play a larger role at ski resorts, particularly those looking to reduce diesel consumption while maintaining dependable lift operations.
