{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-26-415597","form_type":"8-K","ticker":"BKH","cik":"0001130464","company_name":"BLACK HILLS CORP /SD/","filed_at":"2026-10-06T20:19:13+00:00","discovered_at":"2026-10-06T20:20:00.279230+00:00","generated_at":"2026-10-12T16:16:39.037727+00:00","sec_items":["7.01","9.01"],"event_type":"other_material","sentiment":"positive","materiality_score":0.82,"calibrated_materiality_score":0.82,"confidence":"high","headline":"Black Hills to invest $1.8B serving Google's Cheyenne data center; ~$150M net income expected in 2030","bullets":["Investing $1.8B in 2027-2029 to build 564 MW (nameplate) of natural gas generation at its existing Cheyenne Prairie Generating Station in Wyoming.","Definitive agreements effective Sept. 30, 2026, terms through 2048; Black Hills serves up to 590 MW grid-connected and manages 2.1 GW of third-party resources via private microgrid.","Project expected to add ~$150M net income in 2030 and ~$2.4B unlevered free cash flow through 2048, net of the $1.8B capex; energy service starts late 2027.","Google provided $399M of refundable advances for long-lead equipment; Black Hills expects to reimburse by June 30, 2027; no cost shifting to existing retail customers.","Regulatory progress: Robinson substation CPCN approved May 2026, CPGS air quality permit approved Aug 2026, South Cheyenne Transmission CPCN filed Sept 2026."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-26-415597","json":"https://secwatch.observer/filing/0001193125-26-415597.json","markdown":"https://secwatch.observer/filing/0001193125-26-415597.md","text":"https://secwatch.observer/filing/0001193125-26-415597.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1130464/000119312526415597/0001193125-26-415597-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1130464/000119312526415597/bkh-20261006.htm"},"model":{"generated_by":"deepseek-v4.1-flash:cloud@v2","generated_at":"2026-10-12T16:16:39.037727+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}