Estimated: Polk County, Wisconsin, United States (Town of Apple River; approximate town centroid)Geronimo Power
CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins91% CONFIDENCEOverall confidence: 91%How well the pin's source and references back up its dates.Weighted average of how firmly 5 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better
EIA[2] 860M (interconnection.fyi[3]) lists the first unit online on 1 December 2025 and the plant as operational; Geronimo said in July 2025 operation would begin later in 2025.Geronimo Power's 100 MW Apple River Solar project in Polk County, Wisconsin, estimated at 116 million USD, began operating in December 2025 per EIA data and sells to Xcel Energy.
$116M
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