Cordelio Switches On 150-MW Winfield Solar, Microsoft Buys Output Entirety

Sep 9, 2025 02:57 PM ET
  • Cordelio’s 150-MWac Winfield solar plant in Missouri reaches COD with a 15-year Microsoft offtake and U.S.-made modules.

Cordelio Power has achieved commercial operation at the 150-MWac Winfield solar project in Lincoln County, Missouri, locking in a 15-year contract to supply 100% of its output to Microsoft. The company said financing closed with Fifth Third Bank and relationship lenders, and highlighted American-made module procurement—details that matter for credit eligibility, community optics, and long-term service quality.

The design playbook is familiar for modern utility PV: high-efficiency modules on single-axis trackers, DC/AC sizing tuned for annual yield rather than oversized peaks, and plant controls that provide voltage support and curtailment response. With Midwest demand profiles shifting—thanks to data centers and electrified industry—daytime solar backed by corporate offtake offers both cost predictability and emissions cuts.

For Microsoft, Winfield adds to a deepening portfolio of contracted clean power. For Cordelio, the COD milestone de-risks construction exposure and opens options to refinance at operating terms or recycle capital into the next tranche of projects. Expect early attention to seasonal soiling, vegetation management, and performance analytics to keep net capacity factor on target through the first full production year.

Bottom line: in a week heavy with RE+ headlines, Winfield is steel-in-the-ground proof that corporates remain an engine for utility-scale solar, even as policy winds shift.