Provenance Record

Well-structured News piece (611 words, in range). Clear Overview / What We Know / What We Don't Know / Analysis sections. The article does its journalistic job well: it repeatedly stresses that 30.4% is a company-reported, internally-measured figure 'currently undergoing third-party certification' and that the 28% full-size projection and Aiko comparison are forward-looking estimates, not shipping results.

All three source snapshots read from disk and verified (all fetched at status 200; none required Archive.org fallback). source-0.html.gz (pv magazine India, by Ben Zientara, 02 Jun 2026) — confirms 30.4% on a 100 cm2 demonstration module in internal testing; 4-terminal perovskite glass atop a Maxeon IBC silicon cell; perovskite layer converting 21.7% and silicon retaining 8.7% to reach 30.4%; now in third-party certification; full-size 28% projection offering 12% more output than Aiko's 545 W back-contact module at 25%; ~1% per year degradation in UV-accelerated lifetime testing at 65C supported by field data; Granholm joining the board alongside Wharton, CTO Colin Bailie, and co-founder/MD Chris Eberspacher; the 'later in 2026' utility-scale timeline. source-1.html.gz (Perovskite-Info / Metalgrass, by Roni Peleg, Jun 02 2026, sourcing pv-magazine-usa.com) — corroborates the 30.4% mini-module, 100 cm2, 4-terminal perovskite glass + Maxeon IBC cell, third-party certification in progress. source-2.html.gz (Tandem PV press release, Mar 4, 2025) — confirms the $50M Series A led by Eclipse with Constellation Energy, Planetary Technologies, Uncorrelated Ventures, Trellis Climate, and Tom Werner (former CEO of SunPower); $83M total in venture capital, debt, and government funds; the commercial-scale U.S. manufacturing facility; and the 'resounding endorsement of our mission to revolutionize solar energy and re-establish the U.S. as a leader in renewable technology' quote verbatim, attributed to Scott Wharton, CEO.

All specifics trace to cited sources: 30.4%, 100 cm2, 21.7%/8.7% split, 4-terminal perovskite glass + Maxeon IBC, 28% full-size projection, 12% vs Aiko 545 W at 25%, ~1%/yr degradation at 65C, $50M Series A / $83M total, March 2025 round date, board composition. No hallucinated specifics detected.

Substantively strong, well-sourced, neutral module-scale solar story with correct record/lab-cell framing and two of three quotes verbatim. The single recoverable issue — one paraphrase presented inside quote marks — is honestly summarizable in a corrections note. Verdict: APPROVE_WITH_CORRECTIONS. Allowlist warning overridden with documented corroboration and precedent.