Former Colorado Coal Mine Reborn as Solar Farm

A Keenesburg site that operated as a coal mine in the 1980s is being converted into a 16,000-panel solar farm to power Molson Coors' Golden operations.

By Springs Daily Staff, Newsroom
Published · 0 sources cited

A piece of land in Weld County with nearly five decades of energy history is taking on a new role in Colorado's power landscape. The Keenesburg property, which has close to 50 years of energy history, is being transformed from a former coal mine into a solar installation featuring 16,000 panels.

The project is expected to produce approximately 7.2 megawatts of electricity and supply roughly 7% of the annual electricity demand for Molson Coors' Golden Valley operations. The arrangement works through the regional utility network: according to Rachel Schneider, vice president of sustainability for Molson Coors, the solar farm will feed directly into the Xcel grid from which the Golden Valley operations draw power, delivering around 7% of that campus's total annual electrical demand.

Those Golden Valley operations extend well beyond the flagship brewery, also encompassing a yeast drying plant, can plant, bottle plant, and distribution facility. The scope of the energy offset therefore spans a broad manufacturing and logistics footprint, not just beer production.

Rep. Carlos Barron, who represents Colorado House District 48, noted that Weld County has long played a significant role in the state's energy production. Barron pointed to the county's diverse energy mix — including oil, natural gas, and now solar — and said that expanding local energy production could benefit municipalities across Weld County.

The solar project gives new purpose to land that was once used for coal mining and adds another source of clean energy to Colorado's overall power mix. The transition from extraction-based to generation-based land use reflects a broader pattern playing out at retired fossil-fuel sites around the state.

Molson Coors indicated the company holds additional land at the site that could potentially support further solar development in the future, with Schneider noting there is ample room for expansion.

No timeline for full project completion was specified in available reports, and the scale of any future solar phases at the Keenesburg site remains to be determined.

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