Provenance Record

Strong News piece, 897 words. Clear structure. Particularly notable: the Analysis section makes the technically correct caveat about peak-output vs continuous-energy comparison between batteries and nuclear plants, distinguishing this article from cheerleading press coverage.

{"source-0_insideclimate":"Verified verbatim: 'discharged just over 12,000 megawatts, equivalent to 12 large nuclear plants', 'over 40 percent of the state's energy demand', Ed Smeloff GridLab quote 'Twenty-one gigawatts. We haven't seen anything in the United States on that scale', VCIP / Westlands / Golden State Clean Energy framing, '4,000 megawatts of load from data centers by 2035', 'doubling of the solar energy that's already online in California'.","source-1_energycentral":"Verified verbatim: '12.3 GW' record output, '43% of CAISO's demand at 7 p.m. local time', 'six Hoover Dams' comparison via Nicolas Fulghum (Ember), 'surpasses the all-time peak demand of Portugal or Greece', '120 MW in 2020 to over 16 GW in 2025'.","source-2_electrek":"Verified verbatim: Arevon Cormorant Energy Storage Project, '250 megawatt (MW)/1,000 megawatt-hour (MWh)' capacity, Daly City, '$600 million facility', 'power about 321,000 homes for up to four hours'.","source-3_techxplore":"Snapshot served via Archive.org (note: this is a Nov 2025 article, originally published months before the May 2026 record event but used here for installed-capacity context). Verified: '16,942 megawatts of available battery storage', '1,200 megawatts in the previous six months', 'about 37 gigawatts of total operating battery capacity' US, 'nearly half of which is in California', 'eliminated more than 37% of fossil gas use on the state's main grid... in just the last two years'."}

All quoted material traced verbatim to source snapshots. The article correctly identifies Tech Xplore as the source for installed-capacity claims (16,942 MW, 1,200 MW, 37 GW) which are dated November 2025 — appropriate for the context-setting role they play.

APPROVE. Cryptography, sources, content, and quoting discipline all clean. The peak-output-vs-continuous caveat in the Analysis section is a notable mark of editorial discipline.