Denver

Denver Partners with WM to Launch Colorado's Largest Renewable Natural Gas Facility

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Published on December 03, 2025
Denver Partners with WM to Launch Colorado's Largest Renewable Natural Gas FacilitySource: en:user:Onetwo1, CC BY-SA 3.0, via Wikimedia Commons

Denver is stepping up its game in the race against climate change by partnering with WM (Waste Management) to create the largest Renewable Natural Gas (RNG) facility in Colorado, situated at the Denver Arapahoe Disposal Site (DADS) landfill, a strategic move that serves as a testament to the city's dedication to sustainable practices and air quality improvement. This forward-thinking endeavor, which has been officially announced, represents the city's first foray into converting landfill gas into RNG, positioning it as a pioneer among over 536 RNG plants that now pepper North America.

Mayor Mike Johnston highlighted the city's proactive approach during the announcement, stating, "Denver is confronting the climate crisis head-on," and emphasizing the project as a "bold example" of clean energy advancement and innovation that could drive economic growth, according to the City and County of Denver. The Denver City Council cast its votes on Monday, December 1, in favor of an agreement with WM for the financing, construction, and operation of the plant, a deal set to furnish the city with royalty payments spurred by the facility's revenue.

The mechanics of the RNG facility are designed to capture and upgrade landfill gas, which is largely methane, a potent greenhouse gas released as waste decomposes, the current system at DADS only manages about a third of this gas to produce electricity while the rest is "flared," or burned, to meet air permitting guidelines; however, with the new facility in place, that gas will be refined to remove impurities and carbon dioxide, transforming it into a substance nearly identical to traditional natural gas but with a considerably smaller carbon footprint.

David Brannon, Area Vice President of WM Four Corners, expressed pride in WM's role in expanding renewable energy in Denver and across Colorado, acknowledging the local communities expected to benefit from the development; "This project can help provide a local, sustainable energy source for our local communities," he told City and County of Denver, asserting gratitude for the unified efforts of state and local officials. Reducing the need for flaring reduces emissions of ozone precursors and other pollutants expectedly to contribute to regional air quality improvements.