{"schema_version":"secwatch.filing_event.v1","accession":"0001628280-23-028207","form_type":"8-K","ticker":"GWH","cik":"0001819438","company_name":"ESS Tech, Inc.","filed_at":"2023-08-08T23:59:59+00:00","discovered_at":"2026-05-14T18:03:35.423061+00:00","generated_at":"2026-06-12T02:36:53.975219+00:00","sec_items":["2.02","9.01"],"event_type":"earnings","sentiment":"positive","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"ESS Tech Q2 revenue $2.8M record; ships 9 Energy Warehouses to 4 new customers","bullets":["Record Q2 revenue $2.8M; shipped 9 Energy Warehouses to 4 new customers.","Partnership with LEAG for 500 MWh iron flow battery system at Boxberg, Germany; definitive agreements expected Q3.","SMUD agreement: up to 2 GWh LDES over four years; first phase shipments begun.","Management expects revenue for next two quarters at approximately Q2 rate.","UL 9540 certification received; 10 new patents granted (total 70 patents, 235 filed)."],"urls":{"canonical":"https://secwatch.observer/filing/0001628280-23-028207","json":"https://secwatch.observer/filing/0001628280-23-028207.json","markdown":"https://secwatch.observer/filing/0001628280-23-028207.md","text":"https://secwatch.observer/filing/0001628280-23-028207.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1819438/000162828023028207/0001628280-23-028207-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1819438/000162828023028207/wk-20230808.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-12T02:36:53.975219+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":[{"claim_id":"23bd4f96a64737dd4fdd333278d167c5054dc797","claim":"ESS Tech, Inc. reported the quarter ended June 30, 2023 results: revenue $2.8 million.","evidence_excerpt":"as expressly set forth by specific reference in such a filing. --- EX-99.1 (EX-99.1) --- ESS Tech, Inc. Announces Second Quarter 2023 Financial Results Record Revenue of $2.8 Million Delivered Energy WarehousesTM to Four New Customers Announces Partnership with LEAG WILSONVILLE, Ore. – August 8, 2023 – ESS Tech, Inc . (“ESS,” “ESS, Inc.” or the “Company”) (","evidence_source":"SEC 8-K Item 2.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1819438/000162828023028207/0001628280-23-028207-index.htm","confidence":0.9,"family_label":"Earnings Releases","details":[{"label":"Period","value":"the quarter ended June 30, 2023"},{"label":"Revenue","value":"$2.8 million"},{"label":"Result","value":"reported results"}],"fact_type":"earnings_release"},{"claim_id":"ddfd3126b1af63b8f1d0b8732c1f89a45caecbd7","claim":"ESS Tech, Inc. reported the second quarter ended June 30, 2023 results: revenue $2.8 million.","evidence_excerpt":"today announced financial results for its second quarter ended June 30, 2023. “I’m proud of the progress ESS made in the second quarter, recognizing record revenue of $2.8 million","evidence_source":"SEC 8-K Item 2.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1819438/000162828023028207/0001628280-23-028207-index.htm","confidence":0.95,"family_label":"Earnings Releases","details":[{"label":"Period","value":"the second quarter ended June 30, 2023"},{"label":"Revenue","value":"$2.8 million"},{"label":"Result","value":"reported results"}],"fact_type":"earnings_release"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}